./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 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-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.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 e91317f289ae08033f6458d219d3b71fd8a7791b2777f777b60194968c497219 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 21:16:22,493 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 21:16:22,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 21:16:22,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 21:16:22,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 21:16:22,543 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 21:16:22,544 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 21:16:22,548 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 21:16:22,549 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 21:16:22,551 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 21:16:22,551 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 21:16:22,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 21:16:22,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 21:16:22,555 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 21:16:22,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 21:16:22,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 21:16:22,561 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 21:16:22,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 21:16:22,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 21:16:22,572 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 21:16:22,573 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 21:16:22,575 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 21:16:22,576 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 21:16:22,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 21:16:22,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 21:16:22,581 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 21:16:22,581 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 21:16:22,582 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 21:16:22,582 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 21:16:22,583 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 21:16:22,584 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 21:16:22,584 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 21:16:22,585 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 21:16:22,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 21:16:22,586 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 21:16:22,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 21:16:22,587 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 21:16:22,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 21:16:22,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 21:16:22,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 21:16:22,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 21:16:22,590 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 21:16:22,616 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 21:16:22,616 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 21:16:22,617 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 21:16:22,617 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 21:16:22,618 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 21:16:22,618 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 21:16:22,618 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 21:16:22,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 21:16:22,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 21:16:22,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 21:16:22,619 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 21:16:22,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 21:16:22,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 21:16:22,620 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 21:16:22,620 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 21:16:22,620 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 21:16:22,620 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 21:16:22,621 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 21:16:22,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 21:16:22,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 21:16:22,621 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 21:16:22,621 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 21:16:22,621 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 21:16:22,622 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 21:16:22,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 21:16:22,622 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 21:16:22,622 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 21:16:22,622 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 21:16:22,622 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 21:16:22,622 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e91317f289ae08033f6458d219d3b71fd8a7791b2777f777b60194968c497219 [2021-11-06 21:16:22,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 21:16:22,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 21:16:22,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 21:16:22,832 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 21:16:22,832 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 21:16:22,833 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i [2021-11-06 21:16:22,884 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6341ce7e5/eb83f94b287c47bdbe901bd79ea3625a/FLAG6e73b72ac [2021-11-06 21:16:23,631 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 21:16:23,631 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i [2021-11-06 21:16:23,681 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6341ce7e5/eb83f94b287c47bdbe901bd79ea3625a/FLAG6e73b72ac [2021-11-06 21:16:23,929 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6341ce7e5/eb83f94b287c47bdbe901bd79ea3625a [2021-11-06 21:16:23,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 21:16:23,933 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 21:16:23,934 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 21:16:23,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 21:16:23,937 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 21:16:23,937 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:16:23" (1/1) ... [2021-11-06 21:16:23,938 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a8d043e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:23, skipping insertion in model container [2021-11-06 21:16:23,938 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:16:23" (1/1) ... [2021-11-06 21:16:23,943 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 21:16:24,088 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 21:16:27,720 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-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580326,580339] [2021-11-06 21:16:27,722 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-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580473,580486] [2021-11-06 21:16:27,722 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-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580612,580625] [2021-11-06 21:16:27,723 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-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580770,580783] [2021-11-06 21:16:27,753 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 21:16:27,858 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 21:16:28,355 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-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580326,580339] [2021-11-06 21:16:28,357 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-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580473,580486] [2021-11-06 21:16:28,357 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-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580612,580625] [2021-11-06 21:16:28,357 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-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580770,580783] [2021-11-06 21:16:28,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 21:16:28,531 INFO L208 MainTranslator]: Completed translation [2021-11-06 21:16:28,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:28 WrapperNode [2021-11-06 21:16:28,532 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 21:16:28,533 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 21:16:28,533 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 21:16:28,533 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 21:16:28,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:28" (1/1) ... [2021-11-06 21:16:28,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:28" (1/1) ... [2021-11-06 21:16:29,825 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 21:16:29,826 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 21:16:29,826 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 21:16:29,827 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 21:16:29,833 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:28" (1/1) ... [2021-11-06 21:16:29,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:28" (1/1) ... [2021-11-06 21:16:30,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:28" (1/1) ... [2021-11-06 21:16:30,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:28" (1/1) ... [2021-11-06 21:16:30,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:28" (1/1) ... [2021-11-06 21:16:30,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:28" (1/1) ... [2021-11-06 21:16:30,738 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:28" (1/1) ... [2021-11-06 21:16:30,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 21:16:30,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 21:16:30,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 21:16:30,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 21:16:30,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:28" (1/1) ... [2021-11-06 21:16:30,868 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 21:16:30,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 21:16:30,888 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) [2021-11-06 21:16:30,894 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 [2021-11-06 21:16:30,915 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2021-11-06 21:16:30,915 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-06 21:16:30,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 21:16:30,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 21:16:30,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 21:16:30,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 21:16:30,916 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2021-11-06 21:16:30,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 21:16:30,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 21:16:30,916 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 21:16:30,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 21:16:30,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 21:16:30,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 21:16:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 21:16:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 21:16:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 21:16:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 21:16:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 21:16:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 21:20:43,914 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4931: assume 1 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-06 21:20:43,914 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4932: assume !(1 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-06 21:20:43,915 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4848: assume 1 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-06 21:20:43,915 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4849: assume !(1 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-06 21:20:43,915 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10684-1: __copy_from_user_nocheck_#t~ret1180 := copy_user_generic_#res;__copy_from_user_nocheck_~tmp___2~10 := __copy_from_user_nocheck_#t~ret1180;havoc __copy_from_user_nocheck_#t~ret1180;__copy_from_user_nocheck_#res := (if __copy_from_user_nocheck_~tmp___2~10 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_nocheck_~tmp___2~10 % 18446744073709551616 % 4294967296 else __copy_from_user_nocheck_~tmp___2~10 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-06 21:20:43,915 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10684-7: __copy_to_user_nocheck_#t~ret1185 := copy_user_generic_#res;__copy_to_user_nocheck_~tmp___2~11 := __copy_to_user_nocheck_#t~ret1185;havoc __copy_to_user_nocheck_#t~ret1185;__copy_to_user_nocheck_#res := (if __copy_to_user_nocheck_~tmp___2~11 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_nocheck_~tmp___2~11 % 18446744073709551616 % 4294967296 else __copy_to_user_nocheck_~tmp___2~11 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-06 21:20:43,915 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10684-3: __copy_from_user_nocheck_#t~ret1180 := copy_user_generic_#res;__copy_from_user_nocheck_~tmp___2~10 := __copy_from_user_nocheck_#t~ret1180;havoc __copy_from_user_nocheck_#t~ret1180;__copy_from_user_nocheck_#res := (if __copy_from_user_nocheck_~tmp___2~10 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_nocheck_~tmp___2~10 % 18446744073709551616 % 4294967296 else __copy_from_user_nocheck_~tmp___2~10 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-06 21:20:43,915 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10684-5: __copy_to_user_nocheck_#t~ret1185 := copy_user_generic_#res;__copy_to_user_nocheck_~tmp___2~11 := __copy_to_user_nocheck_#t~ret1185;havoc __copy_to_user_nocheck_#t~ret1185;__copy_to_user_nocheck_#res := (if __copy_to_user_nocheck_~tmp___2~11 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_nocheck_~tmp___2~11 % 18446744073709551616 % 4294967296 else __copy_to_user_nocheck_~tmp___2~11 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-06 21:20:43,915 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10703-1: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-06 21:20:43,916 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10703: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-06 21:20:43,916 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10706: assume 2 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-06 21:20:43,916 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10706: assume !(2 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-06 21:20:43,916 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10706-1: assume 2 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-06 21:20:43,916 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10706-1: assume !(2 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-06 21:20:43,916 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10707-1: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-06 21:20:43,916 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10707: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-06 21:20:43,916 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10710-1: assume 4 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-06 21:20:43,917 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10710-1: assume !(4 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-06 21:20:43,917 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10710: assume 4 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-06 21:20:43,917 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10710: assume !(4 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-06 21:20:43,917 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10711-1: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-06 21:20:43,917 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10711: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-06 21:20:43,917 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10714: assume 8 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-06 21:20:43,917 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10714: assume !(8 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-06 21:20:43,917 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10714-1: assume 8 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-06 21:20:43,918 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10714-1: assume !(8 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-06 21:20:43,918 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10715-1: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-06 21:20:43,918 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10715: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-06 21:20:43,918 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10718-1: assume 10 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-06 21:20:43,918 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10718-1: assume !(10 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-06 21:20:43,918 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10718: assume 10 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-06 21:20:43,918 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10718: assume !(10 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-06 21:20:43,919 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10719-1: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_from_user_nocheck_~ret~17 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-06 21:20:43,919 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10719: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_from_user_nocheck_~ret~17 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-06 21:20:43,919 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10722: assume 16 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-06 21:20:43,919 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10722: assume !(16 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-06 21:20:43,919 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10722-1: assume 16 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-06 21:20:43,919 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10722-1: assume !(16 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-06 21:20:43,919 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10723-1: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_from_user_nocheck_~ret~17 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-06 21:20:43,920 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10723: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_from_user_nocheck_~ret~17 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-06 21:20:43,920 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10726-1: copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset, copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset, copy_user_generic_#in~len := __copy_from_user_nocheck_~dst.base, __copy_from_user_nocheck_~dst.offset, __copy_from_user_nocheck_~src.base, __copy_from_user_nocheck_~src.offset, __copy_from_user_nocheck_~size;havoc copy_user_generic_#res;havoc copy_user_generic_~to.base, copy_user_generic_~to.offset, copy_user_generic_~from.base, copy_user_generic_~from.offset, copy_user_generic_~len, copy_user_generic_~ret~16;copy_user_generic_~to.base, copy_user_generic_~to.offset := copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset;copy_user_generic_~from.base, copy_user_generic_~from.offset := copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset;copy_user_generic_~len := copy_user_generic_#in~len;havoc copy_user_generic_~ret~16;copy_user_generic_#res := copy_user_generic_~ret~16 % 4294967296; [2021-11-06 21:20:43,920 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10726: copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset, copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset, copy_user_generic_#in~len := __copy_from_user_nocheck_~dst.base, __copy_from_user_nocheck_~dst.offset, __copy_from_user_nocheck_~src.base, __copy_from_user_nocheck_~src.offset, __copy_from_user_nocheck_~size;havoc copy_user_generic_#res;havoc copy_user_generic_~to.base, copy_user_generic_~to.offset, copy_user_generic_~from.base, copy_user_generic_~from.offset, copy_user_generic_~len, copy_user_generic_~ret~16;copy_user_generic_~to.base, copy_user_generic_~to.offset := copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset;copy_user_generic_~from.base, copy_user_generic_~from.offset := copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset;copy_user_generic_~len := copy_user_generic_#in~len;havoc copy_user_generic_~ret~16;copy_user_generic_#res := copy_user_generic_~ret~16 % 4294967296; [2021-11-06 21:20:43,920 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10754: assume 0 != __copy_from_user_nocheck_~tmp___0~25;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-06 21:20:43,920 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10754: assume !(0 != __copy_from_user_nocheck_~tmp___0~25);__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-06 21:20:43,921 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10754-1: assume 0 != __copy_from_user_nocheck_~tmp___0~25;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-06 21:20:43,921 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10754-1: assume !(0 != __copy_from_user_nocheck_~tmp___0~25);__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-06 21:20:43,921 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10769-1: assume 0 != __copy_from_user_nocheck_~tmp___1~15;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-06 21:20:43,921 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10769-1: assume !(0 != __copy_from_user_nocheck_~tmp___1~15);__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-06 21:20:43,921 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10769: assume 0 != __copy_from_user_nocheck_~tmp___1~15;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-06 21:20:43,921 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10769: assume !(0 != __copy_from_user_nocheck_~tmp___1~15);__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-06 21:20:43,921 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10812: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-06 21:20:43,922 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10812-1: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-06 21:20:43,922 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10815-1: assume 2 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-06 21:20:43,922 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10815-1: assume !(2 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-06 21:20:43,922 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10815: assume 2 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-06 21:20:43,922 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10815: assume !(2 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-06 21:20:43,922 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10816: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-06 21:20:43,922 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10816-1: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-06 21:20:43,922 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10819-1: assume 4 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-06 21:20:43,923 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10819-1: assume !(4 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-06 21:20:43,923 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10819: assume 4 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-06 21:20:43,923 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10819: assume !(4 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-06 21:20:43,923 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10820: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-06 21:20:43,923 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10820-1: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-06 21:20:43,923 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10823-1: assume 8 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-06 21:20:43,923 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10823-1: assume !(8 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-06 21:20:43,923 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10823: assume 8 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-06 21:20:43,924 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10823: assume !(8 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-06 21:20:43,924 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10824: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-06 21:20:43,924 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10824-1: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-06 21:20:43,924 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10827-1: assume 10 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-06 21:20:43,924 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10827-1: assume !(10 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-06 21:20:43,924 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10827: assume 10 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-06 21:20:43,924 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10827: assume !(10 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-06 21:20:43,925 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10828: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_to_user_nocheck_~ret~18 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-06 21:20:43,925 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10828-1: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_to_user_nocheck_~ret~18 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-06 21:20:43,925 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10831-1: assume 16 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-06 21:20:43,925 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10831-1: assume !(16 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-06 21:20:43,925 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10831: assume 16 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-06 21:20:43,925 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10831: assume !(16 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-06 21:20:43,925 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10832: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_to_user_nocheck_~ret~18 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-06 21:20:43,925 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10832-1: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_to_user_nocheck_~ret~18 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-06 21:20:43,926 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10835-1: copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset, copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset, copy_user_generic_#in~len := __copy_to_user_nocheck_~dst.base, __copy_to_user_nocheck_~dst.offset, __copy_to_user_nocheck_~src.base, __copy_to_user_nocheck_~src.offset, __copy_to_user_nocheck_~size;havoc copy_user_generic_#res;havoc copy_user_generic_~to.base, copy_user_generic_~to.offset, copy_user_generic_~from.base, copy_user_generic_~from.offset, copy_user_generic_~len, copy_user_generic_~ret~16;copy_user_generic_~to.base, copy_user_generic_~to.offset := copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset;copy_user_generic_~from.base, copy_user_generic_~from.offset := copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset;copy_user_generic_~len := copy_user_generic_#in~len;havoc copy_user_generic_~ret~16;copy_user_generic_#res := copy_user_generic_~ret~16 % 4294967296; [2021-11-06 21:20:43,926 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10835: copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset, copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset, copy_user_generic_#in~len := __copy_to_user_nocheck_~dst.base, __copy_to_user_nocheck_~dst.offset, __copy_to_user_nocheck_~src.base, __copy_to_user_nocheck_~src.offset, __copy_to_user_nocheck_~size;havoc copy_user_generic_#res;havoc copy_user_generic_~to.base, copy_user_generic_~to.offset, copy_user_generic_~from.base, copy_user_generic_~from.offset, copy_user_generic_~len, copy_user_generic_~ret~16;copy_user_generic_~to.base, copy_user_generic_~to.offset := copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset;copy_user_generic_~from.base, copy_user_generic_~from.offset := copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset;copy_user_generic_~len := copy_user_generic_#in~len;havoc copy_user_generic_~ret~16;copy_user_generic_#res := copy_user_generic_~ret~16 % 4294967296; [2021-11-06 21:20:43,926 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10858: assume 0 != __copy_to_user_nocheck_~tmp___0~26;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-06 21:20:43,926 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10858: assume !(0 != __copy_to_user_nocheck_~tmp___0~26);__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-06 21:20:43,926 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10858-1: assume 0 != __copy_to_user_nocheck_~tmp___0~26;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-06 21:20:43,926 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10858-1: assume !(0 != __copy_to_user_nocheck_~tmp___0~26);__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-06 21:20:43,926 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10872: assume 0 != __copy_to_user_nocheck_~tmp___1~16;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-06 21:20:43,927 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10872: assume !(0 != __copy_to_user_nocheck_~tmp___1~16);__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-06 21:20:43,927 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10872-1: assume 0 != __copy_to_user_nocheck_~tmp___1~16;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-06 21:20:43,927 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L10872-1: assume !(0 != __copy_to_user_nocheck_~tmp___1~16);__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-06 21:20:43,927 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 21:20:43,928 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_10_returnLabel: main_#res := 0; [2021-11-06 21:20:43,928 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5085: assume 1 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-06 21:20:43,928 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5086: assume !(1 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-06 21:20:43,929 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5034: assume 1 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-06 21:20:43,929 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5035: assume !(1 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-06 21:20:43,929 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L19808-8: __copy_from_user_nocheck_#t~ret1179 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1179 && __copy_from_user_nocheck_#t~ret1179 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~15 := __copy_from_user_nocheck_#t~ret1179;havoc __copy_from_user_nocheck_#t~ret1179; [2021-11-06 21:20:43,929 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L19808-7: __copy_from_user_nocheck_#t~ret1178 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1178 && __copy_from_user_nocheck_#t~ret1178 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~25 := __copy_from_user_nocheck_#t~ret1178;havoc __copy_from_user_nocheck_#t~ret1178; [2021-11-06 21:20:43,930 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L19808-12: __copy_to_user_nocheck_#t~ret1184 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1184 && __copy_to_user_nocheck_#t~ret1184 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~16 := __copy_to_user_nocheck_#t~ret1184;havoc __copy_to_user_nocheck_#t~ret1184; [2021-11-06 21:20:43,930 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L19808-11: __copy_to_user_nocheck_#t~ret1183 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1183 && __copy_to_user_nocheck_#t~ret1183 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~26 := __copy_to_user_nocheck_#t~ret1183;havoc __copy_to_user_nocheck_#t~ret1183; [2021-11-06 21:20:43,930 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L19808-14: __copy_to_user_nocheck_#t~ret1183 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1183 && __copy_to_user_nocheck_#t~ret1183 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~26 := __copy_to_user_nocheck_#t~ret1183;havoc __copy_to_user_nocheck_#t~ret1183; [2021-11-06 21:20:43,930 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L19808-4: __copy_from_user_nocheck_#t~ret1179 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1179 && __copy_from_user_nocheck_#t~ret1179 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~15 := __copy_from_user_nocheck_#t~ret1179;havoc __copy_from_user_nocheck_#t~ret1179; [2021-11-06 21:20:43,930 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L19808-3: __copy_from_user_nocheck_#t~ret1178 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1178 && __copy_from_user_nocheck_#t~ret1178 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~25 := __copy_from_user_nocheck_#t~ret1178;havoc __copy_from_user_nocheck_#t~ret1178; [2021-11-06 21:20:43,930 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L19808-15: __copy_to_user_nocheck_#t~ret1184 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1184 && __copy_to_user_nocheck_#t~ret1184 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~16 := __copy_to_user_nocheck_#t~ret1184;havoc __copy_to_user_nocheck_#t~ret1184; [2021-11-06 21:20:43,931 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L9339: #t~ret3581 := main_#res; [2021-11-06 21:20:43,956 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 21:20:43,956 INFO L299 CfgBuilder]: Removed 5389 assume(true) statements. [2021-11-06 21:20:43,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:20:43 BoogieIcfgContainer [2021-11-06 21:20:43,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 21:20:43,965 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 21:20:43,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 21:20:43,967 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 21:20:43,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:16:23" (1/3) ... [2021-11-06 21:20:43,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@377687d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:20:43, skipping insertion in model container [2021-11-06 21:20:43,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:28" (2/3) ... [2021-11-06 21:20:43,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@377687d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:20:43, skipping insertion in model container [2021-11-06 21:20:43,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:20:43" (3/3) ... [2021-11-06 21:20:43,970 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i [2021-11-06 21:20:43,973 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 21:20:43,973 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-11-06 21:20:44,021 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 21:20:44,025 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 [2021-11-06 21:20:44,025 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-06 21:20:44,090 INFO L276 IsEmpty]: Start isEmpty. Operand has 6451 states, 6444 states have (on average 1.3836126629422718) internal successors, (8916), 6450 states have internal predecessors, (8916), 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) [2021-11-06 21:20:44,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-06 21:20:44,095 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 21:20:44,095 INFO L513 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] [2021-11-06 21:20:44,096 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-06 21:20:44,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 21:20:44,099 INFO L85 PathProgramCache]: Analyzing trace with hash -94906379, now seen corresponding path program 1 times [2021-11-06 21:20:44,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 21:20:44,105 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841777141] [2021-11-06 21:20:44,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 21:20:44,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 21:20:44,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 21:20:45,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 21:20:45,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 21:20:45,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841777141] [2021-11-06 21:20:45,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841777141] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 21:20:45,140 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 21:20:45,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 21:20:45,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973768396] [2021-11-06 21:20:45,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 21:20:45,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 21:20:45,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 21:20:45,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 21:20:45,167 INFO L87 Difference]: Start difference. First operand has 6451 states, 6444 states have (on average 1.3836126629422718) internal successors, (8916), 6450 states have internal predecessors, (8916), 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) Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2021-11-06 21:20:45,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 21:20:45,931 INFO L93 Difference]: Finished difference Result 19096 states and 26421 transitions. [2021-11-06 21:20:45,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 21:20:45,933 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) Word has length 34 [2021-11-06 21:20:45,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 21:20:45,984 INFO L225 Difference]: With dead ends: 19096 [2021-11-06 21:20:45,984 INFO L226 Difference]: Without dead ends: 10734 [2021-11-06 21:20:46,005 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 21:20:46,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10734 states. [2021-11-06 21:20:46,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10734 to 10724. [2021-11-06 21:20:46,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10724 states, 10717 states have (on average 1.3554166277876272) internal successors, (14526), 10723 states have internal predecessors, (14526), 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) [2021-11-06 21:20:46,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10724 states to 10724 states and 14526 transitions. [2021-11-06 21:20:46,274 INFO L78 Accepts]: Start accepts. Automaton has 10724 states and 14526 transitions. Word has length 34 [2021-11-06 21:20:46,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 21:20:46,275 INFO L470 AbstractCegarLoop]: Abstraction has 10724 states and 14526 transitions. [2021-11-06 21:20:46,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2021-11-06 21:20:46,276 INFO L276 IsEmpty]: Start isEmpty. Operand 10724 states and 14526 transitions. [2021-11-06 21:20:46,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-06 21:20:46,279 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 21:20:46,279 INFO L513 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] [2021-11-06 21:20:46,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 21:20:46,280 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-06 21:20:46,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 21:20:46,282 INFO L85 PathProgramCache]: Analyzing trace with hash 492278546, now seen corresponding path program 1 times [2021-11-06 21:20:46,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 21:20:46,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007165525] [2021-11-06 21:20:46,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 21:20:46,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 21:20:46,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 21:20:46,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 21:20:46,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 21:20:46,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007165525] [2021-11-06 21:20:46,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007165525] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 21:20:46,937 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 21:20:46,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 21:20:46,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026992259] [2021-11-06 21:20:46,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 21:20:46,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 21:20:46,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 21:20:46,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 21:20:46,939 INFO L87 Difference]: Start difference. First operand 10724 states and 14526 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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) [2021-11-06 21:20:47,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 21:20:47,764 INFO L93 Difference]: Finished difference Result 18361 states and 24743 transitions. [2021-11-06 21:20:47,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 21:20:47,765 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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) Word has length 73 [2021-11-06 21:20:47,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 21:20:47,836 INFO L225 Difference]: With dead ends: 18361 [2021-11-06 21:20:47,836 INFO L226 Difference]: Without dead ends: 18359 [2021-11-06 21:20:47,846 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 21:20:47,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18359 states. [2021-11-06 21:20:48,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18359 to 10724. [2021-11-06 21:20:48,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10724 states, 10717 states have (on average 1.3553233180927498) internal successors, (14525), 10723 states have internal predecessors, (14525), 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) [2021-11-06 21:20:48,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10724 states to 10724 states and 14525 transitions. [2021-11-06 21:20:48,138 INFO L78 Accepts]: Start accepts. Automaton has 10724 states and 14525 transitions. Word has length 73 [2021-11-06 21:20:48,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 21:20:48,139 INFO L470 AbstractCegarLoop]: Abstraction has 10724 states and 14525 transitions. [2021-11-06 21:20:48,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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) [2021-11-06 21:20:48,140 INFO L276 IsEmpty]: Start isEmpty. Operand 10724 states and 14525 transitions. [2021-11-06 21:20:48,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-06 21:20:48,146 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 21:20:48,146 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 21:20:48,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 21:20:48,147 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-06 21:20:48,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 21:20:48,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1764204462, now seen corresponding path program 1 times [2021-11-06 21:20:48,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 21:20:48,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484761099] [2021-11-06 21:20:48,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 21:20:48,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 21:20:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 21:20:48,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 21:20:48,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 21:20:48,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484761099] [2021-11-06 21:20:48,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484761099] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 21:20:48,946 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 21:20:48,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 21:20:48,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694258234] [2021-11-06 21:20:48,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 21:20:48,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 21:20:48,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 21:20:48,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 21:20:48,947 INFO L87 Difference]: Start difference. First operand 10724 states and 14525 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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) [2021-11-06 21:20:49,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 21:20:49,403 INFO L93 Difference]: Finished difference Result 27906 states and 37615 transitions. [2021-11-06 21:20:49,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 21:20:49,407 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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) Word has length 104 [2021-11-06 21:20:49,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 21:20:49,451 INFO L225 Difference]: With dead ends: 27906 [2021-11-06 21:20:49,451 INFO L226 Difference]: Without dead ends: 20129 [2021-11-06 21:20:49,471 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 21:20:49,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20129 states. [2021-11-06 21:20:49,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20129 to 10728. [2021-11-06 21:20:49,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10728 states, 10721 states have (on average 1.3551907471317974) internal successors, (14529), 10727 states have internal predecessors, (14529), 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) [2021-11-06 21:20:49,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10728 states to 10728 states and 14529 transitions. [2021-11-06 21:20:49,765 INFO L78 Accepts]: Start accepts. Automaton has 10728 states and 14529 transitions. Word has length 104 [2021-11-06 21:20:49,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 21:20:49,767 INFO L470 AbstractCegarLoop]: Abstraction has 10728 states and 14529 transitions. [2021-11-06 21:20:49,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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) [2021-11-06 21:20:49,767 INFO L276 IsEmpty]: Start isEmpty. Operand 10728 states and 14529 transitions. [2021-11-06 21:20:49,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-06 21:20:49,771 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 21:20:49,772 INFO L513 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, 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] [2021-11-06 21:20:49,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 21:20:49,772 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-06 21:20:49,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 21:20:49,773 INFO L85 PathProgramCache]: Analyzing trace with hash 432109248, now seen corresponding path program 1 times [2021-11-06 21:20:49,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 21:20:49,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000653660] [2021-11-06 21:20:49,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 21:20:49,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 21:20:50,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 21:20:50,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 21:20:50,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 21:20:50,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000653660] [2021-11-06 21:20:50,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000653660] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 21:20:50,397 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 21:20:50,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 21:20:50,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091630868] [2021-11-06 21:20:50,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 21:20:50,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 21:20:50,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 21:20:50,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 21:20:50,398 INFO L87 Difference]: Start difference. First operand 10728 states and 14529 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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) [2021-11-06 21:20:51,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 21:20:51,120 INFO L93 Difference]: Finished difference Result 33607 states and 45171 transitions. [2021-11-06 21:20:51,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-06 21:20:51,120 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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) Word has length 114 [2021-11-06 21:20:51,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 21:20:51,186 INFO L225 Difference]: With dead ends: 33607 [2021-11-06 21:20:51,186 INFO L226 Difference]: Without dead ends: 25984 [2021-11-06 21:20:51,209 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-06 21:20:51,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25984 states. [2021-11-06 21:20:51,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25984 to 10734. [2021-11-06 21:20:51,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10734 states, 10727 states have (on average 1.3549920760697305) internal successors, (14535), 10733 states have internal predecessors, (14535), 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) [2021-11-06 21:20:51,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10734 states to 10734 states and 14535 transitions. [2021-11-06 21:20:51,623 INFO L78 Accepts]: Start accepts. Automaton has 10734 states and 14535 transitions. Word has length 114 [2021-11-06 21:20:51,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 21:20:51,623 INFO L470 AbstractCegarLoop]: Abstraction has 10734 states and 14535 transitions. [2021-11-06 21:20:51,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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) [2021-11-06 21:20:51,624 INFO L276 IsEmpty]: Start isEmpty. Operand 10734 states and 14535 transitions. [2021-11-06 21:20:51,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-06 21:20:51,647 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 21:20:51,648 INFO L513 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, 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] [2021-11-06 21:20:51,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 21:20:51,648 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-06 21:20:51,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 21:20:51,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1498969188, now seen corresponding path program 1 times [2021-11-06 21:20:51,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 21:20:51,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803901841] [2021-11-06 21:20:51,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 21:20:51,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 21:20:51,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 21:20:52,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 21:20:52,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 21:20:52,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803901841] [2021-11-06 21:20:52,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803901841] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 21:20:52,119 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 21:20:52,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 21:20:52,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731051741] [2021-11-06 21:20:52,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 21:20:52,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 21:20:52,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 21:20:52,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 21:20:52,121 INFO L87 Difference]: Start difference. First operand 10734 states and 14535 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2021-11-06 21:20:52,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 21:20:52,333 INFO L93 Difference]: Finished difference Result 21345 states and 28930 transitions. [2021-11-06 21:20:52,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 21:20:52,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) Word has length 114 [2021-11-06 21:20:52,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 21:20:52,355 INFO L225 Difference]: With dead ends: 21345 [2021-11-06 21:20:52,355 INFO L226 Difference]: Without dead ends: 10736 [2021-11-06 21:20:52,371 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 21:20:52,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10736 states. [2021-11-06 21:20:52,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10736 to 10736. [2021-11-06 21:20:52,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10736 states, 10729 states have (on average 1.3549259017615807) internal successors, (14537), 10735 states have internal predecessors, (14537), 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) [2021-11-06 21:20:52,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10736 states to 10736 states and 14537 transitions. [2021-11-06 21:20:52,586 INFO L78 Accepts]: Start accepts. Automaton has 10736 states and 14537 transitions. Word has length 114 [2021-11-06 21:20:52,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 21:20:52,587 INFO L470 AbstractCegarLoop]: Abstraction has 10736 states and 14537 transitions. [2021-11-06 21:20:52,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2021-11-06 21:20:52,587 INFO L276 IsEmpty]: Start isEmpty. Operand 10736 states and 14537 transitions. [2021-11-06 21:20:52,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-06 21:20:52,590 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 21:20:52,590 INFO L513 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, 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] [2021-11-06 21:20:52,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 21:20:52,591 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-06 21:20:52,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 21:20:52,591 INFO L85 PathProgramCache]: Analyzing trace with hash 990559774, now seen corresponding path program 1 times [2021-11-06 21:20:52,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 21:20:52,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172109922] [2021-11-06 21:20:52,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 21:20:52,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 21:20:53,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 21:20:53,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 21:20:53,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 21:20:53,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172109922] [2021-11-06 21:20:53,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172109922] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 21:20:53,304 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 21:20:53,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 21:20:53,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068185225] [2021-11-06 21:20:53,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 21:20:53,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 21:20:53,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 21:20:53,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 21:20:53,305 INFO L87 Difference]: Start difference. First operand 10736 states and 14537 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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) [2021-11-06 21:20:54,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 21:20:54,051 INFO L93 Difference]: Finished difference Result 33607 states and 45161 transitions. [2021-11-06 21:20:54,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-06 21:20:54,052 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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) Word has length 114 [2021-11-06 21:20:54,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 21:20:54,116 INFO L225 Difference]: With dead ends: 33607 [2021-11-06 21:20:54,116 INFO L226 Difference]: Without dead ends: 25855 [2021-11-06 21:20:54,141 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-06 21:20:54,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25855 states. [2021-11-06 21:20:54,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25855 to 10745. [2021-11-06 21:20:54,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10745 states, 10738 states have (on average 1.3545352952132612) internal successors, (14545), 10744 states have internal predecessors, (14545), 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) [2021-11-06 21:20:54,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10745 states to 10745 states and 14545 transitions. [2021-11-06 21:20:54,526 INFO L78 Accepts]: Start accepts. Automaton has 10745 states and 14545 transitions. Word has length 114 [2021-11-06 21:20:54,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 21:20:54,527 INFO L470 AbstractCegarLoop]: Abstraction has 10745 states and 14545 transitions. [2021-11-06 21:20:54,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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) [2021-11-06 21:20:54,527 INFO L276 IsEmpty]: Start isEmpty. Operand 10745 states and 14545 transitions. [2021-11-06 21:20:54,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-06 21:20:54,530 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 21:20:54,530 INFO L513 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, 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] [2021-11-06 21:20:54,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 21:20:54,531 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-06 21:20:54,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 21:20:54,531 INFO L85 PathProgramCache]: Analyzing trace with hash 181213148, now seen corresponding path program 1 times [2021-11-06 21:20:54,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 21:20:54,531 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187200606] [2021-11-06 21:20:54,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 21:20:54,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 21:20:54,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 21:20:55,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 21:20:55,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 21:20:55,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187200606] [2021-11-06 21:20:55,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187200606] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 21:20:55,719 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 21:20:55,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-06 21:20:55,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040943558] [2021-11-06 21:20:55,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-06 21:20:55,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 21:20:55,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-06 21:20:55,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-06 21:20:55,721 INFO L87 Difference]: Start difference. First operand 10745 states and 14545 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 8 states have internal predecessors, (114), 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) [2021-11-06 21:21:01,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 21:21:01,494 INFO L93 Difference]: Finished difference Result 37124 states and 50338 transitions. [2021-11-06 21:21:01,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-06 21:21:01,495 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 8 states have internal predecessors, (114), 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) Word has length 114 [2021-11-06 21:21:01,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 21:21:01,557 INFO L225 Difference]: With dead ends: 37124 [2021-11-06 21:21:01,558 INFO L226 Difference]: Without dead ends: 26461 [2021-11-06 21:21:01,586 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2021-11-06 21:21:01,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26461 states. [2021-11-06 21:21:01,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26461 to 10751. [2021-11-06 21:21:01,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10751 states, 10744 states have (on average 1.35433730454207) internal successors, (14551), 10750 states have internal predecessors, (14551), 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) [2021-11-06 21:21:01,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10751 states to 10751 states and 14551 transitions. [2021-11-06 21:21:01,996 INFO L78 Accepts]: Start accepts. Automaton has 10751 states and 14551 transitions. Word has length 114 [2021-11-06 21:21:01,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 21:21:01,996 INFO L470 AbstractCegarLoop]: Abstraction has 10751 states and 14551 transitions. [2021-11-06 21:21:01,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 8 states have internal predecessors, (114), 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) [2021-11-06 21:21:01,997 INFO L276 IsEmpty]: Start isEmpty. Operand 10751 states and 14551 transitions. [2021-11-06 21:21:01,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-06 21:21:01,999 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 21:21:02,000 INFO L513 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, 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] [2021-11-06 21:21:02,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 21:21:02,000 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-06 21:21:02,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 21:21:02,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1236339091, now seen corresponding path program 1 times [2021-11-06 21:21:02,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 21:21:02,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659890345] [2021-11-06 21:21:02,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 21:21:02,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 21:21:40,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 21:21:41,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 21:21:41,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 21:21:41,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659890345] [2021-11-06 21:21:41,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659890345] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 21:21:41,613 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 21:21:41,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-06 21:21:41,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395338941] [2021-11-06 21:21:41,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-06 21:21:41,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 21:21:41,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-06 21:21:41,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-11-06 21:21:41,615 INFO L87 Difference]: Start difference. First operand 10751 states and 14551 transitions. Second operand has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 11 states have internal predecessors, (115), 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) [2021-11-06 21:21:44,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 21:21:44,997 INFO L93 Difference]: Finished difference Result 19842 states and 26671 transitions. [2021-11-06 21:21:44,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-06 21:21:44,998 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 11 states have internal predecessors, (115), 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) Word has length 115 [2021-11-06 21:21:44,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 21:21:45,043 INFO L225 Difference]: With dead ends: 19842 [2021-11-06 21:21:45,043 INFO L226 Difference]: Without dead ends: 12162 [2021-11-06 21:21:45,061 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2021-11-06 21:21:45,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12162 states. [2021-11-06 21:21:45,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12162 to 10698. [2021-11-06 21:21:45,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10698 states, 10691 states have (on average 1.3543167149939201) internal successors, (14479), 10697 states have internal predecessors, (14479), 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) [2021-11-06 21:21:45,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10698 states to 10698 states and 14479 transitions. [2021-11-06 21:21:45,332 INFO L78 Accepts]: Start accepts. Automaton has 10698 states and 14479 transitions. Word has length 115 [2021-11-06 21:21:45,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 21:21:45,333 INFO L470 AbstractCegarLoop]: Abstraction has 10698 states and 14479 transitions. [2021-11-06 21:21:45,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 11 states have internal predecessors, (115), 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) [2021-11-06 21:21:45,333 INFO L276 IsEmpty]: Start isEmpty. Operand 10698 states and 14479 transitions. [2021-11-06 21:21:45,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-06 21:21:45,335 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 21:21:45,335 INFO L513 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, 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] [2021-11-06 21:21:45,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-06 21:21:45,335 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-06 21:21:45,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 21:21:45,336 INFO L85 PathProgramCache]: Analyzing trace with hash -223439344, now seen corresponding path program 1 times [2021-11-06 21:21:45,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 21:21:45,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718176519] [2021-11-06 21:21:45,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 21:21:45,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 21:21:45,507 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 21:21:45,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [64466587] [2021-11-06 21:21:45,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 21:21:45,508 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 21:21:45,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 21:21:45,509 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 21:21:45,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process Killed by 15