./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--fbdev--core--fb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4d014703 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--fbdev--core--fb.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2bf66c918295559060a8e3ec892f4cbf4fc66cf4b9f3e9338e9b0a339b20bc2f --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-02 20:51:05,503 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 20:51:05,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 20:51:05,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 20:51:05,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 20:51:05,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 20:51:05,534 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 20:51:05,535 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 20:51:05,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 20:51:05,537 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 20:51:05,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 20:51:05,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 20:51:05,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 20:51:05,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 20:51:05,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 20:51:05,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 20:51:05,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 20:51:05,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 20:51:05,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 20:51:05,545 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 20:51:05,546 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 20:51:05,547 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 20:51:05,548 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 20:51:05,549 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 20:51:05,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 20:51:05,551 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 20:51:05,551 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 20:51:05,551 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 20:51:05,552 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 20:51:05,552 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 20:51:05,552 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 20:51:05,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 20:51:05,553 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 20:51:05,554 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 20:51:05,555 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 20:51:05,555 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 20:51:05,555 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 20:51:05,555 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 20:51:05,556 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 20:51:05,556 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 20:51:05,557 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 20:51:05,557 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-02 20:51:05,572 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 20:51:05,572 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 20:51:05,573 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 20:51:05,573 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 20:51:05,573 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 20:51:05,574 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 20:51:05,574 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 20:51:05,574 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 20:51:05,574 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 20:51:05,574 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 20:51:05,575 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 20:51:05,575 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 20:51:05,575 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 20:51:05,575 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 20:51:05,575 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 20:51:05,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 20:51:05,576 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 20:51:05,576 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 20:51:05,576 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 20:51:05,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 20:51:05,576 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 20:51:05,576 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 20:51:05,577 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 20:51:05,577 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 20:51:05,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 20:51:05,577 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 20:51:05,577 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 20:51:05,577 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 20:51:05,578 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 20:51:05,578 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2bf66c918295559060a8e3ec892f4cbf4fc66cf4b9f3e9338e9b0a339b20bc2f [2021-11-02 20:51:05,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 20:51:05,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 20:51:05,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 20:51:05,767 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 20:51:05,768 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 20:51:05,769 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--fbdev--core--fb.ko-entry_point.cil.out.i [2021-11-02 20:51:05,815 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/beca150d3/15872079b3504e0eb9bef77d076837c5/FLAGc00c76f44 [2021-11-02 20:51:06,430 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 20:51:06,431 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--fbdev--core--fb.ko-entry_point.cil.out.i [2021-11-02 20:51:06,477 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/beca150d3/15872079b3504e0eb9bef77d076837c5/FLAGc00c76f44 [2021-11-02 20:51:06,550 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/beca150d3/15872079b3504e0eb9bef77d076837c5 [2021-11-02 20:51:06,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 20:51:06,554 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 20:51:06,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 20:51:06,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 20:51:06,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 20:51:06,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:51:06" (1/1) ... [2021-11-02 20:51:06,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5803e8ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:06, skipping insertion in model container [2021-11-02 20:51:06,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:51:06" (1/1) ... [2021-11-02 20:51:06,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 20:51:06,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 20:51:09,065 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--fbdev--core--fb.ko-entry_point.cil.out.i[416114,416127] [2021-11-02 20:51:09,105 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-02 20:51:09,111 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 20:51:09,186 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 20:51:09,549 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--fbdev--core--fb.ko-entry_point.cil.out.i[416114,416127] [2021-11-02 20:51:09,554 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-02 20:51:09,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 20:51:09,703 INFO L208 MainTranslator]: Completed translation [2021-11-02 20:51:09,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:09 WrapperNode [2021-11-02 20:51:09,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 20:51:09,705 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 20:51:09,705 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 20:51:09,706 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 20:51:09,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:09" (1/1) ... [2021-11-02 20:51:09,846 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:09" (1/1) ... [2021-11-02 20:51:15,014 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 20:51:15,015 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 20:51:15,015 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 20:51:15,015 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 20:51:15,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:09" (1/1) ... [2021-11-02 20:51:15,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:09" (1/1) ... [2021-11-02 20:51:16,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:09" (1/1) ... [2021-11-02 20:51:16,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:09" (1/1) ... [2021-11-02 20:51:19,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:09" (1/1) ... [2021-11-02 20:51:19,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:09" (1/1) ... [2021-11-02 20:51:20,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:09" (1/1) ... [2021-11-02 20:51:21,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 20:51:21,351 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 20:51:21,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 20:51:21,352 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 20:51:21,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:09" (1/1) ... [2021-11-02 20:51:21,391 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 20:51:21,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 20:51:21,445 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) [2021-11-02 20:51:21,456 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 [2021-11-02 20:51:21,491 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-02 20:51:21,492 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-02 20:51:21,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-02 20:51:21,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 20:51:21,492 INFO L130 BoogieDeclarations]: Found specification of procedure fb_pan_display [2021-11-02 20:51:21,492 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_pan_display [2021-11-02 20:51:21,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-02 20:51:21,492 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-02 20:51:21,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-02 20:51:21,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-02 20:51:21,493 INFO L130 BoogieDeclarations]: Found specification of procedure fb_getput_cmap [2021-11-02 20:51:21,493 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_getput_cmap [2021-11-02 20:51:21,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 20:51:21,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 20:51:21,493 INFO L130 BoogieDeclarations]: Found specification of procedure fb_show_logo_line [2021-11-02 20:51:21,493 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_show_logo_line [2021-11-02 20:51:21,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 20:51:21,494 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-02 20:51:21,494 INFO L130 BoogieDeclarations]: Found specification of procedure do_fb_ioctl [2021-11-02 20:51:21,494 INFO L138 BoogieDeclarations]: Found implementation of procedure do_fb_ioctl [2021-11-02 20:51:21,494 INFO L130 BoogieDeclarations]: Found specification of procedure fb_set_logocmap [2021-11-02 20:51:21,494 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_set_logocmap [2021-11-02 20:51:21,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 20:51:21,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 20:51:21,495 INFO L130 BoogieDeclarations]: Found specification of procedure fb_ioctl [2021-11-02 20:51:21,495 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_ioctl [2021-11-02 20:51:21,495 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-02 20:51:21,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-02 20:51:21,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-02 20:51:21,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-02 20:51:21,495 INFO L130 BoogieDeclarations]: Found specification of procedure fb_write [2021-11-02 20:51:21,495 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_write [2021-11-02 20:51:21,496 INFO L130 BoogieDeclarations]: Found specification of procedure fb_release [2021-11-02 20:51:21,496 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_release [2021-11-02 20:51:21,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 20:51:21,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 20:51:21,496 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-02 20:51:21,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-02 20:51:21,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 20:51:21,496 INFO L130 BoogieDeclarations]: Found specification of procedure fb_set_cmap [2021-11-02 20:51:21,497 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_set_cmap [2021-11-02 20:51:21,497 INFO L130 BoogieDeclarations]: Found specification of procedure fb_mmap [2021-11-02 20:51:21,497 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_mmap [2021-11-02 20:51:21,497 INFO L130 BoogieDeclarations]: Found specification of procedure fb_compat_ioctl [2021-11-02 20:51:21,497 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_compat_ioctl [2021-11-02 20:51:21,497 INFO L130 BoogieDeclarations]: Found specification of procedure fb_set_var [2021-11-02 20:51:21,497 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_set_var [2021-11-02 20:51:21,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 20:51:21,498 INFO L130 BoogieDeclarations]: Found specification of procedure fb_read [2021-11-02 20:51:21,498 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_read [2021-11-02 20:51:21,498 INFO L130 BoogieDeclarations]: Found specification of procedure fb_open [2021-11-02 20:51:21,498 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_open [2021-11-02 20:51:21,498 INFO L130 BoogieDeclarations]: Found specification of procedure fb_get_fscreeninfo [2021-11-02 20:51:21,498 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_get_fscreeninfo [2021-11-02 20:51:21,499 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-02 20:51:21,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-02 20:51:21,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 20:51:21,499 INFO L130 BoogieDeclarations]: Found specification of procedure fb_show_logo [2021-11-02 20:51:21,500 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_show_logo [2021-11-02 20:52:19,019 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 20:52:19,019 INFO L299 CfgBuilder]: Removed 21775 assume(true) statements. [2021-11-02 20:52:19,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:52:19 BoogieIcfgContainer [2021-11-02 20:52:19,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 20:52:19,046 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 20:52:19,046 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 20:52:19,050 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 20:52:19,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:51:06" (1/3) ... [2021-11-02 20:52:19,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c29597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:52:19, skipping insertion in model container [2021-11-02 20:52:19,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:09" (2/3) ... [2021-11-02 20:52:19,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c29597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:52:19, skipping insertion in model container [2021-11-02 20:52:19,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:52:19" (3/3) ... [2021-11-02 20:52:19,053 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--video--fbdev--core--fb.ko-entry_point.cil.out.i [2021-11-02 20:52:19,056 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 20:52:19,056 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-02 20:52:19,159 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 20:52:19,163 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 [2021-11-02 20:52:19,164 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-02 20:52:19,435 INFO L276 IsEmpty]: Start isEmpty. Operand has 33215 states, 33147 states have (on average 1.4727124626663046) internal successors, (48816), 33151 states have internal predecessors, (48816), 44 states have call successors, (44), 20 states have call predecessors, (44), 20 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2021-11-02 20:52:19,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-02 20:52:19,444 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 20:52:19,444 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 20:52:19,445 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [fb_releaseErr0ASSERT_VIOLATIONERROR_FUNCTION, fb_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 20:52:19,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 20:52:19,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1330104993, now seen corresponding path program 1 times [2021-11-02 20:52:19,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 20:52:19,454 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511526539] [2021-11-02 20:52:19,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 20:52:19,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 20:52:19,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 20:52:20,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 20:52:20,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 20:52:20,391 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511526539] [2021-11-02 20:52:20,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511526539] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 20:52:20,392 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 20:52:20,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 20:52:20,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570010226] [2021-11-02 20:52:20,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-02 20:52:20,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 20:52:20,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-02 20:52:20,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 20:52:20,465 INFO L87 Difference]: Start difference. First operand has 33215 states, 33147 states have (on average 1.4727124626663046) internal successors, (48816), 33151 states have internal predecessors, (48816), 44 states have call successors, (44), 20 states have call predecessors, (44), 20 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Second operand has 2 states, 2 states have (on average 44.0) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:52:22,697 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:52:25,717 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:52:28,925 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:52:30,973 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:52:32,860 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:52:35,004 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:52:40,045 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:52:41,921 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:52:44,973 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:52:49,405 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:52:52,041 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:52:54,286 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:52:57,674 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:52:59,712 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:53:01,972 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:53:06,872 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 20:53:09,381 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 20:53:10,767 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:53:12,956 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 20:53:14,466 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:53:15,869 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:53:17,452 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:53:22,086 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-02 20:53:26,237 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-02 20:53:32,623 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:53:36,138 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:53:38,479 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:53:40,232 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:53:42,362 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:53:44,831 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers []