./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 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa --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 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 00:31:39,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 00:31:39,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 00:31:39,632 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 00:31:39,632 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 00:31:39,633 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 00:31:39,635 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 00:31:39,636 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 00:31:39,638 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 00:31:39,639 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 00:31:39,640 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 00:31:39,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 00:31:39,641 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 00:31:39,642 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 00:31:39,643 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 00:31:39,644 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 00:31:39,645 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 00:31:39,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 00:31:39,648 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 00:31:39,650 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 00:31:39,651 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 00:31:39,653 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 00:31:39,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 00:31:39,656 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 00:31:39,659 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 00:31:39,660 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 00:31:39,660 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 00:31:39,661 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 00:31:39,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 00:31:39,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 00:31:39,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 00:31:39,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 00:31:39,665 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 00:31:39,666 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 00:31:39,667 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 00:31:39,667 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 00:31:39,668 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 00:31:39,668 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 00:31:39,668 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 00:31:39,669 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 00:31:39,670 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 00:31:39,670 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-07 00:31:39,693 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 00:31:39,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 00:31:39,694 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 00:31:39,694 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 00:31:39,694 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 00:31:39,695 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 00:31:39,695 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 00:31:39,695 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 00:31:39,696 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 00:31:39,696 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 00:31:39,696 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 00:31:39,696 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 00:31:39,696 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 00:31:39,697 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 00:31:39,697 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 00:31:39,697 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 00:31:39,697 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 00:31:39,697 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 00:31:39,697 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 00:31:39,698 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 00:31:39,698 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 00:31:39,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:31:39,698 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 00:31:39,698 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 00:31:39,699 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 00:31:39,699 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 00:31:39,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 00:31:39,699 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 00:31:39,699 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 00:31:39,699 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 00:31:39,700 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 00:31:39,700 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e91317f289ae08033f6458d219d3b71fd8a7791b2777f777b60194968c497219 [2021-12-07 00:31:39,878 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 00:31:39,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 00:31:39,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 00:31:39,899 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 00:31:39,900 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 00:31:39,901 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i [2021-12-07 00:31:39,950 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa/data/0ca0aeebb/c0d60f949d6f4e37b15b404f05e3a121/FLAG47851b763 [2021-12-07 00:31:40,736 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 00:31:40,737 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i [2021-12-07 00:31:40,788 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa/data/0ca0aeebb/c0d60f949d6f4e37b15b404f05e3a121/FLAG47851b763 [2021-12-07 00:31:40,922 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa/data/0ca0aeebb/c0d60f949d6f4e37b15b404f05e3a121 [2021-12-07 00:31:40,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 00:31:40,925 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 00:31:40,926 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 00:31:40,926 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 00:31:40,929 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 00:31:40,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:31:40" (1/1) ... [2021-12-07 00:31:40,930 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@88db16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:40, skipping insertion in model container [2021-12-07 00:31:40,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:31:40" (1/1) ... [2021-12-07 00:31:40,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 00:31:41,078 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:31:44,635 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580326,580339] [2021-12-07 00:31:44,637 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580473,580486] [2021-12-07 00:31:44,638 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580612,580625] [2021-12-07 00:31:44,638 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580770,580783] [2021-12-07 00:31:44,660 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:31:44,727 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 00:31:45,209 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580326,580339] [2021-12-07 00:31:45,209 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580473,580486] [2021-12-07 00:31:45,210 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580612,580625] [2021-12-07 00:31:45,210 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580770,580783] [2021-12-07 00:31:45,215 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:31:45,362 INFO L208 MainTranslator]: Completed translation [2021-12-07 00:31:45,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:45 WrapperNode [2021-12-07 00:31:45,363 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 00:31:45,363 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 00:31:45,363 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 00:31:45,363 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 00:31:45,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:45" (1/1) ... [2021-12-07 00:31:45,471 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:45" (1/1) ... [2021-12-07 00:31:45,765 INFO L137 Inliner]: procedures = 524, calls = 8710, calls flagged for inlining = 290, calls inlined = 230, statements flattened = 12885 [2021-12-07 00:31:45,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 00:31:45,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 00:31:45,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 00:31:45,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 00:31:45,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:45" (1/1) ... [2021-12-07 00:31:45,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:45" (1/1) ... [2021-12-07 00:31:45,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:45" (1/1) ... [2021-12-07 00:31:45,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:45" (1/1) ... [2021-12-07 00:31:46,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:45" (1/1) ... [2021-12-07 00:31:46,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:45" (1/1) ... [2021-12-07 00:31:46,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:45" (1/1) ... [2021-12-07 00:31:46,160 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 00:31:46,160 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 00:31:46,161 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 00:31:46,161 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 00:31:46,161 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:45" (1/1) ... [2021-12-07 00:31:46,167 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:31:46,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:31:46,189 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 00:31:46,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 00:31:46,224 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-07 00:31:46,224 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-07 00:31:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-07 00:31:46,225 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-07 00:31:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-07 00:31:46,225 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-07 00:31:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-07 00:31:46,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-07 00:31:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_read [2021-12-07 00:31:46,225 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_read [2021-12-07 00:31:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_release [2021-12-07 00:31:46,225 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_release [2021-12-07 00:31:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_find_control [2021-12-07 00:31:46,226 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_find_control [2021-12-07 00:31:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2021-12-07 00:31:46,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2021-12-07 00:31:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_ctrl_add_mapping [2021-12-07 00:31:46,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_ctrl_add_mapping [2021-12-07 00:31:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_buffer_finish [2021-12-07 00:31:46,226 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_buffer_finish [2021-12-07 00:31:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2021-12-07 00:31:46,226 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2021-12-07 00:31:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2021-12-07 00:31:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_wait_prepare [2021-12-07 00:31:46,227 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_wait_prepare [2021-12-07 00:31:46,227 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_alloc_urb_buffers [2021-12-07 00:31:46,227 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_alloc_urb_buffers [2021-12-07 00:31:46,227 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_clock_reset [2021-12-07 00:31:46,227 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_clock_reset [2021-12-07 00:31:46,227 INFO L130 BoogieDeclarations]: Found specification of procedure usb_match_one_id [2021-12-07 00:31:46,227 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_match_one_id [2021-12-07 00:31:46,227 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-07 00:31:46,227 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-07 00:31:46,227 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-07 00:31:46,227 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get_ts [2021-12-07 00:31:46,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get_ts [2021-12-07 00:31:46,228 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_entity_by_id [2021-12-07 00:31:46,228 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_entity_by_id [2021-12-07 00:31:46,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-07 00:31:46,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-07 00:31:46,228 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-12-07 00:31:46,228 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-12-07 00:31:46,228 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-07 00:31:46,228 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-07 00:31:46,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-07 00:31:46,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-07 00:31:46,228 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-07 00:31:46,228 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-07 00:31:46,229 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2021-12-07 00:31:46,229 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2021-12-07 00:31:46,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 00:31:46,229 INFO L130 BoogieDeclarations]: Found specification of procedure __chk_range_not_ok [2021-12-07 00:31:46,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __chk_range_not_ok [2021-12-07 00:31:46,229 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_query_v4l2_ctrl [2021-12-07 00:31:46,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_query_v4l2_ctrl [2021-12-07 00:31:46,229 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_data [2021-12-07 00:31:46,229 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_data [2021-12-07 00:31:46,229 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-07 00:31:46,229 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-07 00:31:46,229 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2021-12-07 00:31:46,230 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2021-12-07 00:31:46,230 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_ioctl [2021-12-07 00:31:46,230 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_ioctl [2021-12-07 00:31:46,230 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-07 00:31:46,230 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-07 00:31:46,230 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_populate_cache [2021-12-07 00:31:46,230 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_populate_cache [2021-12-07 00:31:46,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-07 00:31:46,230 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_add_info [2021-12-07 00:31:46,230 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_add_info [2021-12-07 00:31:46,230 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-07 00:31:46,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-07 00:31:46,230 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_buffer_done [2021-12-07 00:31:46,231 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_buffer_done [2021-12-07 00:31:46,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-07 00:31:46,231 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_query_ctrl [2021-12-07 00:31:46,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_query_ctrl [2021-12-07 00:31:46,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-07 00:31:46,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-07 00:31:46,231 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_wait_finish [2021-12-07 00:31:46,231 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_wait_finish [2021-12-07 00:31:46,231 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_reset_resume [2021-12-07 00:31:46,231 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_reset_resume [2021-12-07 00:31:46,231 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-12-07 00:31:46,231 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-12-07 00:31:46,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-07 00:31:46,232 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2021-12-07 00:31:46,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2021-12-07 00:31:46,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-07 00:31:46,232 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-07 00:31:46,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-07 00:31:46,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-07 00:31:46,232 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-07 00:31:46,232 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-07 00:31:46,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-07 00:31:46,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-07 00:31:46,232 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_scan_chain_forward [2021-12-07 00:31:46,232 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_scan_chain_forward [2021-12-07 00:31:46,233 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2021-12-07 00:31:46,233 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2021-12-07 00:31:46,233 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_commit_video [2021-12-07 00:31:46,233 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_commit_video [2021-12-07 00:31:46,233 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2021-12-07 00:31:46,233 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-07 00:31:46,233 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-07 00:31:46,233 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64_rem [2021-12-07 00:31:46,233 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64_rem [2021-12-07 00:31:46,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-07 00:31:46,233 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2021-12-07 00:31:46,233 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2021-12-07 00:31:46,233 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_ctrl_get [2021-12-07 00:31:46,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_ctrl_get [2021-12-07 00:31:46,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 00:31:46,234 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_find_endpoint [2021-12-07 00:31:46,234 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_find_endpoint [2021-12-07 00:31:46,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-07 00:31:46,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-07 00:31:46,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-07 00:31:46,234 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-07 00:31:46,234 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_endpoint_max_bpi [2021-12-07 00:31:46,234 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_endpoint_max_bpi [2021-12-07 00:31:46,234 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-07 00:31:46,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-07 00:31:46,235 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_set_video_ctrl [2021-12-07 00:31:46,235 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_set_video_ctrl [2021-12-07 00:31:46,235 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-07 00:31:46,235 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-07 00:31:46,235 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_delete [2021-12-07 00:31:46,235 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_delete [2021-12-07 00:31:46,235 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_commit_entity [2021-12-07 00:31:46,235 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_commit_entity [2021-12-07 00:31:46,235 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_free_urb_buffers [2021-12-07 00:31:46,235 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_free_urb_buffers [2021-12-07 00:31:46,235 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_del_event [2021-12-07 00:31:46,235 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_del_event [2021-12-07 00:31:46,235 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user [2021-12-07 00:31:46,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user [2021-12-07 00:31:46,236 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_open [2021-12-07 00:31:46,236 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_open [2021-12-07 00:31:46,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 00:31:46,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 00:31:46,236 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-12-07 00:31:46,236 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-12-07 00:31:46,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-07 00:31:46,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-07 00:31:46,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-07 00:31:46,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-07 00:31:46,236 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2021-12-07 00:31:46,236 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2021-12-07 00:31:46,236 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_fill_event [2021-12-07 00:31:46,237 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_fill_event [2021-12-07 00:31:46,237 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2021-12-07 00:31:46,237 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2021-12-07 00:31:46,237 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_get_plane_payload [2021-12-07 00:31:46,237 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_get_plane_payload [2021-12-07 00:31:46,237 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2021-12-07 00:31:46,237 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2021-12-07 00:31:46,237 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-07 00:31:46,237 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-07 00:31:46,237 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2021-12-07 00:31:46,237 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2021-12-07 00:31:46,237 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2021-12-07 00:31:46,237 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2021-12-07 00:31:46,238 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_debugfs_cleanup [2021-12-07 00:31:46,238 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_debugfs_cleanup [2021-12-07 00:31:46,238 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2021-12-07 00:31:46,238 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2021-12-07 00:31:46,238 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-07 00:31:46,238 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-07 00:31:46,238 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_queue_fh [2021-12-07 00:31:46,238 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_queue_fh [2021-12-07 00:31:46,238 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_init_video [2021-12-07 00:31:46,238 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_init_video [2021-12-07 00:31:46,238 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_status_start [2021-12-07 00:31:46,238 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_status_start [2021-12-07 00:31:46,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-07 00:31:46,238 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-07 00:31:46,239 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_intf [2021-12-07 00:31:46,239 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_intf [2021-12-07 00:31:46,239 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR_OR_NULL [2021-12-07 00:31:46,239 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR_OR_NULL [2021-12-07 00:31:46,239 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_find_control [2021-12-07 00:31:46,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_find_control [2021-12-07 00:31:46,239 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_clock_cleanup [2021-12-07 00:31:46,239 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_clock_cleanup [2021-12-07 00:31:46,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-12-07 00:31:46,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-12-07 00:31:46,239 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-12-07 00:31:46,239 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-12-07 00:31:46,239 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64 [2021-12-07 00:31:46,239 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64 [2021-12-07 00:31:46,240 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_buffer_prepare [2021-12-07 00:31:46,240 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_buffer_prepare [2021-12-07 00:31:46,240 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-07 00:31:46,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-07 00:31:46,240 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_set_zoom [2021-12-07 00:31:46,240 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_set_zoom [2021-12-07 00:31:46,240 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_test_bit [2021-12-07 00:31:46,240 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_test_bit [2021-12-07 00:31:46,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 00:31:46,240 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-07 00:31:46,240 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-07 00:31:46,240 INFO L130 BoogieDeclarations]: Found specification of procedure copy_in_user [2021-12-07 00:31:46,240 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_in_user [2021-12-07 00:31:46,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-07 00:31:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_status_stop [2021-12-07 00:31:46,241 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_status_stop [2021-12-07 00:31:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_alloc_entity [2021-12-07 00:31:46,241 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_alloc_entity [2021-12-07 00:31:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2021-12-07 00:31:46,241 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2021-12-07 00:31:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_query_ctrl [2021-12-07 00:31:46,241 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_query_ctrl [2021-12-07 00:31:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-07 00:31:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-07 00:31:46,241 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-07 00:31:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-07 00:31:46,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-07 00:31:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-07 00:31:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-07 00:31:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-07 00:31:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-07 00:31:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_dismiss_privileges [2021-12-07 00:31:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_dismiss_privileges [2021-12-07 00:31:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-07 00:31:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-07 00:31:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-12-07 00:31:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-12-07 00:31:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~__u8~0~X~$Pointer$~TO~~__s32~0 [2021-12-07 00:31:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~__u8~0~X~$Pointer$~TO~~__s32~0 [2021-12-07 00:31:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-07 00:31:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-07 00:31:46,243 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_clock_host_sof [2021-12-07 00:31:46,243 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_clock_host_sof [2021-12-07 00:31:46,243 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-07 00:31:46,243 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-07 00:31:46,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-07 00:31:46,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-07 00:31:46,243 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-07 00:31:46,243 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-07 00:31:46,243 INFO L130 BoogieDeclarations]: Found specification of procedure compat_alloc_user_space [2021-12-07 00:31:46,243 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_alloc_user_space [2021-12-07 00:31:46,243 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_plane_size [2021-12-07 00:31:46,243 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_plane_size [2021-12-07 00:31:46,243 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2021-12-07 00:31:46,243 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2021-12-07 00:31:46,244 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_print_terms [2021-12-07 00:31:46,244 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_print_terms [2021-12-07 00:31:46,244 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-07 00:31:46,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-07 00:31:46,244 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_has_privileges [2021-12-07 00:31:46,244 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_has_privileges [2021-12-07 00:31:46,257 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_enable [2021-12-07 00:31:46,258 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_enable [2021-12-07 00:31:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-07 00:31:46,258 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-07 00:31:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 00:31:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-07 00:31:46,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-07 00:31:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2021-12-07 00:31:46,258 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2021-12-07 00:31:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_init [2021-12-07 00:31:46,258 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_init [2021-12-07 00:31:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-07 00:31:46,259 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-07 00:31:46,259 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_entity_match_guid [2021-12-07 00:31:46,259 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_entity_match_guid [2021-12-07 00:31:46,259 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-07 00:31:46,259 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-07 00:31:46,259 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_uninit_video [2021-12-07 00:31:46,259 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_uninit_video [2021-12-07 00:31:46,259 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_debugfs_cleanup_stream [2021-12-07 00:31:46,259 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_debugfs_cleanup_stream [2021-12-07 00:31:46,259 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2021-12-07 00:31:46,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2021-12-07 00:31:46,259 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_queue_enable [2021-12-07 00:31:46,260 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_queue_enable [2021-12-07 00:31:46,260 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_get_video_ctrl [2021-12-07 00:31:46,260 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_get_video_ctrl [2021-12-07 00:31:46,260 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2021-12-07 00:31:46,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2021-12-07 00:31:46,260 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2021-12-07 00:31:46,260 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2021-12-07 00:31:46,260 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_get_drv_priv [2021-12-07 00:31:46,260 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_get_drv_priv [2021-12-07 00:31:46,260 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2021-12-07 00:31:46,260 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2021-12-07 00:31:46,261 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-12-07 00:31:46,261 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-12-07 00:31:46,261 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_buffer_queue [2021-12-07 00:31:46,261 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_buffer_queue [2021-12-07 00:31:46,261 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_resume [2021-12-07 00:31:46,261 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_resume [2021-12-07 00:31:46,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-07 00:31:46,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-07 00:31:46,261 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_unregister_video [2021-12-07 00:31:46,261 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_unregister_video [2021-12-07 00:31:46,261 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intf [2021-12-07 00:31:46,261 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intf [2021-12-07 00:31:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_resume [2021-12-07 00:31:46,262 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_resume [2021-12-07 00:31:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2021-12-07 00:31:46,262 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2021-12-07 00:31:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_cleanup [2021-12-07 00:31:46,262 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_cleanup [2021-12-07 00:31:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_queue_streaming [2021-12-07 00:31:46,262 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_queue_streaming [2021-12-07 00:31:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_disconnect [2021-12-07 00:31:46,262 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_disconnect [2021-12-07 00:31:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 00:31:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2021-12-07 00:31:46,263 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2021-12-07 00:31:46,263 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_get_zoom [2021-12-07 00:31:46,263 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_get_zoom [2021-12-07 00:31:46,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-07 00:31:46,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-07 00:31:46,942 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 00:31:46,945 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 00:31:47,025 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-07 00:31:47,315 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10812: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-12-07 00:31:47,316 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10816: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-12-07 00:31:47,316 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10870: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1055#1 && __copy_to_user_nocheck_#t~ret1055#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~16#1 := __copy_to_user_nocheck_#t~ret1055#1;havoc __copy_to_user_nocheck_#t~ret1055#1; [2021-12-07 00:31:47,316 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10858: assume 0 != __copy_to_user_nocheck_~tmp___0~26#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-12-07 00:31:47,316 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10858: assume !(0 != __copy_to_user_nocheck_~tmp___0~26#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-12-07 00:31:47,316 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10835: SUMMARY for call __copy_to_user_nocheck_#t~ret1056#1 := copy_user_generic(__copy_to_user_nocheck_~dst#1.base, __copy_to_user_nocheck_~dst#1.offset, __copy_to_user_nocheck_~src#1.base, __copy_to_user_nocheck_~src#1.offset, __copy_to_user_nocheck_~size#1); srcloc: null [2021-12-07 00:31:47,316 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10872: assume 0 != __copy_to_user_nocheck_~tmp___1~16#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-12-07 00:31:47,317 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10872: assume !(0 != __copy_to_user_nocheck_~tmp___1~16#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-12-07 00:31:47,317 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10827: assume 10 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-12-07 00:31:47,317 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10827: assume !(10 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-12-07 00:31:47,317 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10831: assume 16 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-12-07 00:31:47,317 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10831: assume !(16 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-12-07 00:31:47,317 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume 1 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-12-07 00:31:47,317 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10819: assume 4 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-12-07 00:31:47,317 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10819: assume !(4 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-12-07 00:31:47,318 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10856: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1054#1 && __copy_to_user_nocheck_#t~ret1054#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~26#1 := __copy_to_user_nocheck_#t~ret1054#1;havoc __copy_to_user_nocheck_#t~ret1054#1; [2021-12-07 00:31:47,318 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !(1 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-12-07 00:31:47,318 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10823: assume 8 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-12-07 00:31:47,318 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10823: assume !(8 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-12-07 00:31:47,318 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10815: assume 2 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-12-07 00:31:47,318 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10815: assume !(2 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-12-07 00:31:47,318 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10828: SUMMARY for call __copy_to_user_nocheck_#t~ret1054#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~18#1 then 1 else 0), 0); srcloc: null [2021-12-07 00:31:47,319 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10832: SUMMARY for call __copy_to_user_nocheck_#t~ret1055#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~18#1 then 1 else 0), 0); srcloc: null [2021-12-07 00:31:47,319 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10820: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-12-07 00:31:47,319 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10882: __copy_to_user_nocheck_~tmp___2~11#1 := __copy_to_user_nocheck_#t~ret1056#1;havoc __copy_to_user_nocheck_#t~ret1056#1;__copy_to_user_nocheck_#res#1 := (if __copy_to_user_nocheck_~tmp___2~11#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_nocheck_~tmp___2~11#1 % 18446744073709551616 % 4294967296 else __copy_to_user_nocheck_~tmp___2~11#1 % 18446744073709551616 % 4294967296 - 4294967296); [2021-12-07 00:31:47,319 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10824: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-12-07 00:31:49,132 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10779: __copy_from_user_nocheck_~tmp___2~10#1 := __copy_from_user_nocheck_#t~ret1051#1;havoc __copy_from_user_nocheck_#t~ret1051#1;__copy_from_user_nocheck_#res#1 := (if __copy_from_user_nocheck_~tmp___2~10#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_nocheck_~tmp___2~10#1 % 18446744073709551616 % 4294967296 else __copy_from_user_nocheck_~tmp___2~10#1 % 18446744073709551616 % 4294967296 - 4294967296); [2021-12-07 00:31:49,132 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10767: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1050#1 && __copy_from_user_nocheck_#t~ret1050#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~15#1 := __copy_from_user_nocheck_#t~ret1050#1;havoc __copy_from_user_nocheck_#t~ret1050#1; [2021-12-07 00:31:49,132 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10722: assume 16 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-12-07 00:31:49,132 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10722: assume !(16 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-12-07 00:31:49,132 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10726: SUMMARY for call __copy_from_user_nocheck_#t~ret1051#1 := copy_user_generic(__copy_from_user_nocheck_~dst#1.base, __copy_from_user_nocheck_~dst#1.offset, __copy_from_user_nocheck_~src#1.base, __copy_from_user_nocheck_~src#1.offset, __copy_from_user_nocheck_~size#1); srcloc: null [2021-12-07 00:31:49,133 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10714: assume 8 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-12-07 00:31:49,133 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10714: assume !(8 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-12-07 00:31:49,133 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10718: assume 10 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-12-07 00:31:49,133 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10718: assume !(10 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-12-07 00:31:49,133 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10706: assume 2 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-12-07 00:31:49,133 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10706: assume !(2 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-12-07 00:31:49,133 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10710: assume 4 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-12-07 00:31:49,133 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10710: assume !(4 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-12-07 00:31:49,133 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10723: SUMMARY for call __copy_from_user_nocheck_#t~ret1050#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~17#1 then 1 else 0), 0); srcloc: null [2021-12-07 00:31:49,133 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10715: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-12-07 00:31:49,133 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10752: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1049#1 && __copy_from_user_nocheck_#t~ret1049#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~25#1 := __copy_from_user_nocheck_#t~ret1049#1;havoc __copy_from_user_nocheck_#t~ret1049#1; [2021-12-07 00:31:49,133 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10719: SUMMARY for call __copy_from_user_nocheck_#t~ret1049#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~17#1 then 1 else 0), 0); srcloc: null [2021-12-07 00:31:49,133 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10707: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-12-07 00:31:49,133 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10711: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-12-07 00:31:49,133 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10769: assume 0 != __copy_from_user_nocheck_~tmp___1~15#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-12-07 00:31:49,133 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10769: assume !(0 != __copy_from_user_nocheck_~tmp___1~15#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-12-07 00:31:49,133 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10703: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-12-07 00:31:49,133 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume 1 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-12-07 00:31:49,134 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !(1 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-12-07 00:31:49,134 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10754: assume 0 != __copy_from_user_nocheck_~tmp___0~25#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-12-07 00:31:49,134 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10754: assume !(0 != __copy_from_user_nocheck_~tmp___0~25#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-12-07 00:34:25,343 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 00:34:25,365 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 00:34:25,366 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-12-07 00:34:25,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:34:25 BoogieIcfgContainer [2021-12-07 00:34:25,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 00:34:25,372 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 00:34:25,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 00:34:25,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 00:34:25,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:31:40" (1/3) ... [2021-12-07 00:34:25,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b3b9903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:34:25, skipping insertion in model container [2021-12-07 00:34:25,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:45" (2/3) ... [2021-12-07 00:34:25,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b3b9903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:34:25, skipping insertion in model container [2021-12-07 00:34:25,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:34:25" (3/3) ... [2021-12-07 00:34:25,378 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i [2021-12-07 00:34:25,382 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 00:34:25,382 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-12-07 00:34:25,430 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 00:34:25,436 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-07 00:34:25,436 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-12-07 00:34:25,495 INFO L276 IsEmpty]: Start isEmpty. Operand has 2915 states, 2179 states have (on average 1.362092703074805) internal successors, (2968), 2222 states have internal predecessors, (2968), 584 states have call successors, (584), 148 states have call predecessors, (584), 147 states have return successors, (577), 568 states have call predecessors, (577), 577 states have call successors, (577) [2021-12-07 00:34:25,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-07 00:34:25,503 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:34:25,503 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:34:25,504 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION, uvc_deleteErr1ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:34:25,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:34:25,508 INFO L85 PathProgramCache]: Analyzing trace with hash -546262545, now seen corresponding path program 1 times [2021-12-07 00:34:25,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:34:25,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22473134] [2021-12-07 00:34:25,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:34:25,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:34:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:26,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 00:34:26,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:26,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:34:26,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:26,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:34:26,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:26,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 00:34:26,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:26,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-07 00:34:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:26,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-07 00:34:26,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:26,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-07 00:34:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:26,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:34:26,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:26,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-07 00:34:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:26,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-07 00:34:26,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:26,592 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-07 00:34:26,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:34:26,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22473134] [2021-12-07 00:34:26,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22473134] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:34:26,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:34:26,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:34:26,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869932848] [2021-12-07 00:34:26,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:34:26,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:34:26,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:34:26,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:34:26,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:34:26,625 INFO L87 Difference]: Start difference. First operand has 2915 states, 2179 states have (on average 1.362092703074805) internal successors, (2968), 2222 states have internal predecessors, (2968), 584 states have call successors, (584), 148 states have call predecessors, (584), 147 states have return successors, (577), 568 states have call predecessors, (577), 577 states have call successors, (577) Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-07 00:34:28,838 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:34:31,994 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:34:35,054 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:34:42,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:34:42,758 INFO L93 Difference]: Finished difference Result 9206 states and 13169 transitions. [2021-12-07 00:34:42,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 00:34:42,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 75 [2021-12-07 00:34:42,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:34:42,805 INFO L225 Difference]: With dead ends: 9206 [2021-12-07 00:34:42,805 INFO L226 Difference]: Without dead ends: 5532 [2021-12-07 00:34:42,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:34:42,825 INFO L933 BasicCegarLoop]: 6492 mSDtfsCounter, 5329 mSDsluCounter, 12277 mSDsCounter, 0 mSdLazyCounter, 3549 mSolverCounterSat, 1529 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5801 SdHoareTripleChecker+Valid, 18769 SdHoareTripleChecker+Invalid, 5081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1529 IncrementalHoareTripleChecker+Valid, 3549 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2021-12-07 00:34:42,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5801 Valid, 18769 Invalid, 5081 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1529 Valid, 3549 Invalid, 3 Unknown, 0 Unchecked, 15.5s Time] [2021-12-07 00:34:42,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5532 states. [2021-12-07 00:34:43,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5532 to 4935. [2021-12-07 00:34:43,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4935 states, 3733 states have (on average 1.360567907848915) internal successors, (5079), 3785 states have internal predecessors, (5079), 936 states have call successors, (936), 263 states have call predecessors, (936), 262 states have return successors, (935), 918 states have call predecessors, (935), 932 states have call successors, (935) [2021-12-07 00:34:43,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4935 states to 4935 states and 6950 transitions. [2021-12-07 00:34:43,077 INFO L78 Accepts]: Start accepts. Automaton has 4935 states and 6950 transitions. Word has length 75 [2021-12-07 00:34:43,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:34:43,078 INFO L470 AbstractCegarLoop]: Abstraction has 4935 states and 6950 transitions. [2021-12-07 00:34:43,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-07 00:34:43,078 INFO L276 IsEmpty]: Start isEmpty. Operand 4935 states and 6950 transitions. [2021-12-07 00:34:43,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-12-07 00:34:43,085 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:34:43,085 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:34:43,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 00:34:43,086 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION, uvc_deleteErr1ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:34:43,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:34:43,086 INFO L85 PathProgramCache]: Analyzing trace with hash -318568577, now seen corresponding path program 1 times [2021-12-07 00:34:43,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:34:43,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028193070] [2021-12-07 00:34:43,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:34:43,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:34:43,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:43,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 00:34:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:43,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:34:43,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:43,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:34:43,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:43,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 00:34:43,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:43,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-07 00:34:43,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:43,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-07 00:34:43,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:43,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-07 00:34:43,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:43,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:34:43,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:43,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:34:43,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:43,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:34:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:43,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-07 00:34:43,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:43,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:34:43,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:43,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:34:43,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:43,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:34:43,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:43,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-07 00:34:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:43,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:34:43,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:43,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:34:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:43,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:34:43,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:43,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-07 00:34:43,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:43,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:34:43,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:43,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:34:43,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:43,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:34:43,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:43,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-07 00:34:43,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:43,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:34:43,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:43,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:34:43,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:43,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:34:43,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:43,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-07 00:34:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:43,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:34:43,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:43,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:34:43,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:43,947 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2021-12-07 00:34:43,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:34:43,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028193070] [2021-12-07 00:34:43,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028193070] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:34:43,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:34:43,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 00:34:43,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465915889] [2021-12-07 00:34:43,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:34:43,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 00:34:43,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:34:43,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 00:34:43,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-07 00:34:43,951 INFO L87 Difference]: Start difference. First operand 4935 states and 6950 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-07 00:34:46,128 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:34:49,275 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:34:51,576 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:34:55,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:35:05,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:35:05,423 INFO L93 Difference]: Finished difference Result 6429 states and 9285 transitions. [2021-12-07 00:35:05,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 00:35:05,423 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 182 [2021-12-07 00:35:05,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:35:05,460 INFO L225 Difference]: With dead ends: 6429 [2021-12-07 00:35:05,460 INFO L226 Difference]: Without dead ends: 6427 [2021-12-07 00:35:05,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:35:05,465 INFO L933 BasicCegarLoop]: 6328 mSDtfsCounter, 6261 mSDsluCounter, 12599 mSDsCounter, 0 mSdLazyCounter, 4316 mSolverCounterSat, 2706 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6845 SdHoareTripleChecker+Valid, 18927 SdHoareTripleChecker+Invalid, 7026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2706 IncrementalHoareTripleChecker+Valid, 4316 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:35:05,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6845 Valid, 18927 Invalid, 7026 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2706 Valid, 4316 Invalid, 4 Unknown, 0 Unchecked, 21.0s Time] [2021-12-07 00:35:05,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6427 states. [2021-12-07 00:35:05,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6427 to 4976. [2021-12-07 00:35:05,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4976 states, 3760 states have (on average 1.3579787234042553) internal successors, (5106), 3812 states have internal predecessors, (5106), 942 states have call successors, (942), 271 states have call predecessors, (942), 270 states have return successors, (941), 924 states have call predecessors, (941), 938 states have call successors, (941) [2021-12-07 00:35:05,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4976 states to 4976 states and 6989 transitions. [2021-12-07 00:35:05,636 INFO L78 Accepts]: Start accepts. Automaton has 4976 states and 6989 transitions. Word has length 182 [2021-12-07 00:35:05,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:35:05,637 INFO L470 AbstractCegarLoop]: Abstraction has 4976 states and 6989 transitions. [2021-12-07 00:35:05,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-07 00:35:05,637 INFO L276 IsEmpty]: Start isEmpty. Operand 4976 states and 6989 transitions. [2021-12-07 00:35:05,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-12-07 00:35:05,645 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:35:05,645 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:35:05,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 00:35:05,646 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION === [uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION, uvc_deleteErr1ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:35:05,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:35:05,646 INFO L85 PathProgramCache]: Analyzing trace with hash -843534642, now seen corresponding path program 1 times [2021-12-07 00:35:05,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:35:05,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735581474] [2021-12-07 00:35:05,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:35:05,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:35:05,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 00:35:06,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:35:06,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:35:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 00:35:06,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-07 00:35:06,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-07 00:35:06,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-07 00:35:06,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:35:06,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:35:06,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:35:06,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-07 00:35:06,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:35:06,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:35:06,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:35:06,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-07 00:35:06,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:35:06,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:35:06,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:35:06,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-07 00:35:06,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:35:06,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:35:06,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:35:06,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-07 00:35:06,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:35:06,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:35:06,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:35:06,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-07 00:35:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:35:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:35:06,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-07 00:35:06,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-07 00:35:06,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-07 00:35:06,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-07 00:35:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-07 00:35:06,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-07 00:35:06,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-07 00:35:06,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:35:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:35:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-07 00:35:06,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-07 00:35:06,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-12-07 00:35:06,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:06,589 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2021-12-07 00:35:06,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:35:06,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735581474] [2021-12-07 00:35:06,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735581474] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:35:06,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:35:06,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:35:06,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468732615] [2021-12-07 00:35:06,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:35:06,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:35:06,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:35:06,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:35:06,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:35:06,591 INFO L87 Difference]: Start difference. First operand 4976 states and 6989 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-07 00:35:08,739 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:35:10,750 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:35:14,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:35:16,259 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:35:18,288 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:35:20,328 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:35:23,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:35:37,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:35:37,603 INFO L93 Difference]: Finished difference Result 10062 states and 14344 transitions. [2021-12-07 00:35:37,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 00:35:37,604 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 260 [2021-12-07 00:35:37,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:35:37,646 INFO L225 Difference]: With dead ends: 10062 [2021-12-07 00:35:37,646 INFO L226 Difference]: Without dead ends: 7353 [2021-12-07 00:35:37,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:35:37,658 INFO L933 BasicCegarLoop]: 4910 mSDtfsCounter, 4873 mSDsluCounter, 11917 mSDsCounter, 0 mSdLazyCounter, 5192 mSolverCounterSat, 2946 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4983 SdHoareTripleChecker+Valid, 16827 SdHoareTripleChecker+Invalid, 8145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2946 IncrementalHoareTripleChecker+Valid, 5192 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.5s IncrementalHoareTripleChecker+Time [2021-12-07 00:35:37,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4983 Valid, 16827 Invalid, 8145 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2946 Valid, 5192 Invalid, 7 Unknown, 0 Unchecked, 30.5s Time] [2021-12-07 00:35:37,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7353 states. [2021-12-07 00:35:37,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7353 to 4980. [2021-12-07 00:35:37,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4980 states, 3764 states have (on average 1.3575982996811902) internal successors, (5110), 3816 states have internal predecessors, (5110), 942 states have call successors, (942), 271 states have call predecessors, (942), 270 states have return successors, (941), 924 states have call predecessors, (941), 938 states have call successors, (941) [2021-12-07 00:35:37,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4980 states to 4980 states and 6993 transitions. [2021-12-07 00:35:37,850 INFO L78 Accepts]: Start accepts. Automaton has 4980 states and 6993 transitions. Word has length 260 [2021-12-07 00:35:37,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:35:37,851 INFO L470 AbstractCegarLoop]: Abstraction has 4980 states and 6993 transitions. [2021-12-07 00:35:37,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-07 00:35:37,851 INFO L276 IsEmpty]: Start isEmpty. Operand 4980 states and 6993 transitions. [2021-12-07 00:35:37,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2021-12-07 00:35:37,858 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:35:37,859 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:35:37,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-07 00:35:37,859 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION === [uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION, uvc_deleteErr1ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:35:37,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:35:37,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1087155223, now seen corresponding path program 1 times [2021-12-07 00:35:37,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:35:37,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970260468] [2021-12-07 00:35:37,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:35:37,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:35:38,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 00:35:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:35:38,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:35:38,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 00:35:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-07 00:35:38,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-07 00:35:38,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-07 00:35:38,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:35:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:35:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:35:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-07 00:35:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:35:38,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:35:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:35:38,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-07 00:35:38,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:35:38,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:35:38,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:35:38,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-07 00:35:38,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:35:38,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:35:38,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:35:38,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-07 00:35:38,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:35:38,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:35:38,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:35:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-07 00:35:38,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:35:38,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:35:38,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-07 00:35:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-07 00:35:38,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-07 00:35:38,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-07 00:35:38,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-07 00:35:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-07 00:35:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-07 00:35:38,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:35:38,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:35:38,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-07 00:35:38,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-12-07 00:35:38,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-12-07 00:35:38,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:38,725 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2021-12-07 00:35:38,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:35:38,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970260468] [2021-12-07 00:35:38,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970260468] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:35:38,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:35:38,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 00:35:38,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557573381] [2021-12-07 00:35:38,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:35:38,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 00:35:38,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:35:38,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 00:35:38,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-07 00:35:38,727 INFO L87 Difference]: Start difference. First operand 4980 states and 6993 transitions. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-07 00:35:40,885 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:35:42,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:35:46,373 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:35:48,377 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:35:51,021 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:36:03,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:36:03,716 INFO L93 Difference]: Finished difference Result 10867 states and 15448 transitions. [2021-12-07 00:36:03,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:36:03,717 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 270 [2021-12-07 00:36:03,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:36:03,748 INFO L225 Difference]: With dead ends: 10867 [2021-12-07 00:36:03,748 INFO L226 Difference]: Without dead ends: 5959 [2021-12-07 00:36:03,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:36:03,762 INFO L933 BasicCegarLoop]: 3788 mSDtfsCounter, 2131 mSDsluCounter, 8394 mSDsCounter, 0 mSdLazyCounter, 4702 mSolverCounterSat, 1620 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2240 SdHoareTripleChecker+Valid, 12182 SdHoareTripleChecker+Invalid, 6327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1620 IncrementalHoareTripleChecker+Valid, 4702 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.6s IncrementalHoareTripleChecker+Time [2021-12-07 00:36:03,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2240 Valid, 12182 Invalid, 6327 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1620 Valid, 4702 Invalid, 5 Unknown, 0 Unchecked, 24.6s Time] [2021-12-07 00:36:03,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5959 states. [2021-12-07 00:36:03,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5959 to 4982. [2021-12-07 00:36:03,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4982 states, 3766 states have (on average 1.35740839086564) internal successors, (5112), 3818 states have internal predecessors, (5112), 942 states have call successors, (942), 271 states have call predecessors, (942), 270 states have return successors, (941), 924 states have call predecessors, (941), 938 states have call successors, (941) [2021-12-07 00:36:03,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4982 states to 4982 states and 6995 transitions. [2021-12-07 00:36:03,914 INFO L78 Accepts]: Start accepts. Automaton has 4982 states and 6995 transitions. Word has length 270 [2021-12-07 00:36:03,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:36:03,914 INFO L470 AbstractCegarLoop]: Abstraction has 4982 states and 6995 transitions. [2021-12-07 00:36:03,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-07 00:36:03,914 INFO L276 IsEmpty]: Start isEmpty. Operand 4982 states and 6995 transitions. [2021-12-07 00:36:03,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2021-12-07 00:36:03,920 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:36:03,921 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:36:03,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-07 00:36:03,921 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION === [uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION, uvc_deleteErr1ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:36:03,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:36:03,921 INFO L85 PathProgramCache]: Analyzing trace with hash -758211943, now seen corresponding path program 1 times [2021-12-07 00:36:03,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:36:03,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112576984] [2021-12-07 00:36:03,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:36:03,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:36:04,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 00:36:04,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:36:04,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:36:04,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 00:36:04,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-07 00:36:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-07 00:36:04,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-07 00:36:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:36:04,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:36:04,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:36:04,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-07 00:36:04,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:36:04,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:36:04,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:36:04,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-07 00:36:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:36:04,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:36:04,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:36:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-07 00:36:04,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:36:04,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:36:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:36:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-07 00:36:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:36:04,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:36:04,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:36:04,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-07 00:36:04,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:36:04,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:36:04,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-07 00:36:04,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-07 00:36:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-07 00:36:04,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-07 00:36:04,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-07 00:36:04,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-07 00:36:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-07 00:36:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:36:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:36:04,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-07 00:36:04,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-12-07 00:36:04,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-12-07 00:36:04,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:04,825 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2021-12-07 00:36:04,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:36:04,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112576984] [2021-12-07 00:36:04,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112576984] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:36:04,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:36:04,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-07 00:36:04,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169687232] [2021-12-07 00:36:04,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:36:04,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:36:04,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:36:04,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:36:04,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:36:04,827 INFO L87 Difference]: Start difference. First operand 4982 states and 6995 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (30), 5 states have call predecessors, (30), 2 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-07 00:36:06,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:36:09,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:36:13,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:36:15,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:36:18,191 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:36:35,644 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:36:37,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:36:37,630 INFO L93 Difference]: Finished difference Result 8674 states and 12146 transitions. [2021-12-07 00:36:37,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 00:36:37,631 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (30), 5 states have call predecessors, (30), 2 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 270 [2021-12-07 00:36:37,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:36:37,660 INFO L225 Difference]: With dead ends: 8674 [2021-12-07 00:36:37,660 INFO L226 Difference]: Without dead ends: 5969 [2021-12-07 00:36:37,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-12-07 00:36:37,669 INFO L933 BasicCegarLoop]: 3755 mSDtfsCounter, 2138 mSDsluCounter, 17909 mSDsCounter, 0 mSdLazyCounter, 7775 mSolverCounterSat, 1631 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2248 SdHoareTripleChecker+Valid, 21664 SdHoareTripleChecker+Invalid, 9411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1631 IncrementalHoareTripleChecker+Valid, 7775 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.3s IncrementalHoareTripleChecker+Time [2021-12-07 00:36:37,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2248 Valid, 21664 Invalid, 9411 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1631 Valid, 7775 Invalid, 5 Unknown, 0 Unchecked, 32.3s Time] [2021-12-07 00:36:37,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5969 states. [2021-12-07 00:36:37,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5969 to 4992. [2021-12-07 00:36:37,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4992 states, 3774 states have (on average 1.3566507684154743) internal successors, (5120), 3826 states have internal predecessors, (5120), 942 states have call successors, (942), 271 states have call predecessors, (942), 272 states have return successors, (943), 926 states have call predecessors, (943), 938 states have call successors, (943) [2021-12-07 00:36:37,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4992 states to 4992 states and 7005 transitions. [2021-12-07 00:36:37,841 INFO L78 Accepts]: Start accepts. Automaton has 4992 states and 7005 transitions. Word has length 270 [2021-12-07 00:36:37,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:36:37,842 INFO L470 AbstractCegarLoop]: Abstraction has 4992 states and 7005 transitions. [2021-12-07 00:36:37,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (30), 5 states have call predecessors, (30), 2 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-07 00:36:37,843 INFO L276 IsEmpty]: Start isEmpty. Operand 4992 states and 7005 transitions. [2021-12-07 00:36:37,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2021-12-07 00:36:37,849 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:36:37,849 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:36:37,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-07 00:36:37,849 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION === [uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION, uvc_deleteErr1ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:36:37,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:36:37,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1779280297, now seen corresponding path program 1 times [2021-12-07 00:36:37,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:36:37,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096443571] [2021-12-07 00:36:37,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:36:37,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:36:38,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:38,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 00:36:38,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:38,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:36:38,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:38,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:36:38,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:38,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 00:36:38,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:38,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-07 00:36:38,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:38,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-07 00:36:38,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:38,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-07 00:36:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:38,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:36:38,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:38,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:36:38,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:38,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:36:38,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:38,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-07 00:36:38,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:38,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:36:38,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:38,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:36:38,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:38,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:36:38,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:38,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-07 00:36:38,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:38,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:36:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:38,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:36:38,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:38,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:36:38,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:38,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-07 00:36:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:38,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:36:38,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:38,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:36:38,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:38,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:36:38,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:38,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-07 00:36:38,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:38,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:36:38,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:38,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:36:38,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:38,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:36:38,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:38,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-07 00:36:38,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:38,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:36:38,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:39,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:36:39,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:39,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-07 00:36:39,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:39,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-07 00:36:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:39,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-07 00:36:39,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:39,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-07 00:36:39,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:39,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-07 00:36:39,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:39,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-07 00:36:39,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:39,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-07 00:36:39,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:39,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:36:39,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:39,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:36:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:39,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-07 00:36:39,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:39,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-12-07 00:36:39,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:39,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-12-07 00:36:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:39,303 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2021-12-07 00:36:39,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:36:39,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096443571] [2021-12-07 00:36:39,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096443571] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:36:39,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:36:39,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-07 00:36:39,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986252461] [2021-12-07 00:36:39,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:36:39,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-07 00:36:39,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:36:39,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-07 00:36:39,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:36:39,305 INFO L87 Difference]: Start difference. First operand 4992 states and 7005 transitions. Second operand has 13 states, 13 states have (on average 8.923076923076923) internal successors, (116), 8 states have internal predecessors, (116), 2 states have call successors, (30), 5 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-07 00:36:41,461 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:36:43,471 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:36:53,331 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:36:55,337 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:36:58,588 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:37:18,221 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:37:20,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:37:20,274 INFO L93 Difference]: Finished difference Result 10993 states and 15630 transitions. [2021-12-07 00:37:20,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 00:37:20,275 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.923076923076923) internal successors, (116), 8 states have internal predecessors, (116), 2 states have call successors, (30), 5 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) Word has length 270 [2021-12-07 00:37:20,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:37:20,299 INFO L225 Difference]: With dead ends: 10993 [2021-12-07 00:37:20,299 INFO L226 Difference]: Without dead ends: 6041 [2021-12-07 00:37:20,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2021-12-07 00:37:20,311 INFO L933 BasicCegarLoop]: 3795 mSDtfsCounter, 2201 mSDsluCounter, 30990 mSDsCounter, 0 mSdLazyCounter, 11984 mSolverCounterSat, 1663 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2334 SdHoareTripleChecker+Valid, 34785 SdHoareTripleChecker+Invalid, 13652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1663 IncrementalHoareTripleChecker+Valid, 11984 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:37:20,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2334 Valid, 34785 Invalid, 13652 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1663 Valid, 11984 Invalid, 5 Unknown, 0 Unchecked, 40.0s Time] [2021-12-07 00:37:20,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6041 states. [2021-12-07 00:37:20,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6041 to 5002. [2021-12-07 00:37:20,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5002 states, 3782 states have (on average 1.3558963511369646) internal successors, (5128), 3834 states have internal predecessors, (5128), 942 states have call successors, (942), 271 states have call predecessors, (942), 274 states have return successors, (953), 928 states have call predecessors, (953), 938 states have call successors, (953) [2021-12-07 00:37:20,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5002 states to 5002 states and 7023 transitions. [2021-12-07 00:37:20,440 INFO L78 Accepts]: Start accepts. Automaton has 5002 states and 7023 transitions. Word has length 270 [2021-12-07 00:37:20,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:37:20,440 INFO L470 AbstractCegarLoop]: Abstraction has 5002 states and 7023 transitions. [2021-12-07 00:37:20,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.923076923076923) internal successors, (116), 8 states have internal predecessors, (116), 2 states have call successors, (30), 5 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-07 00:37:20,440 INFO L276 IsEmpty]: Start isEmpty. Operand 5002 states and 7023 transitions. [2021-12-07 00:37:20,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2021-12-07 00:37:20,447 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:37:20,447 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:37:20,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-07 00:37:20,447 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION === [uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION, uvc_deleteErr1ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:37:20,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:37:20,447 INFO L85 PathProgramCache]: Analyzing trace with hash -424561556, now seen corresponding path program 1 times [2021-12-07 00:37:20,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:37:20,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822313386] [2021-12-07 00:37:20,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:37:20,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:37:20,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:20,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 00:37:20,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:20,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:37:20,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:20,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:37:20,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:20,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 00:37:20,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:20,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-07 00:37:20,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:20,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-07 00:37:20,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:20,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-07 00:37:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:20,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:37:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:20,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:37:20,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:20,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:37:20,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:20,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-07 00:37:20,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:20,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:37:20,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:20,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:37:20,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:20,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:37:20,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:20,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-07 00:37:20,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:20,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:37:20,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:21,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:37:21,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:21,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:37:21,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:21,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-07 00:37:21,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:21,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:37:21,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:21,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:37:21,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:21,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:37:21,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:21,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-07 00:37:21,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:21,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:37:21,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:21,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:37:21,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:21,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:37:21,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:21,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-07 00:37:21,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:21,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:37:21,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:21,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:37:21,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:21,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-07 00:37:21,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:21,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:37:21,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:21,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-07 00:37:21,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:21,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-07 00:37:21,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:21,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-07 00:37:21,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:21,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-07 00:37:21,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:21,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-07 00:37:21,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:21,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:37:21,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:21,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-12-07 00:37:21,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:21,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:37:21,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:21,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:37:21,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:21,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:37:21,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:21,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:37:21,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:21,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-07 00:37:21,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:21,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-07 00:37:21,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:21,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-07 00:37:21,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:21,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-12-07 00:37:21,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:21,365 INFO L134 CoverageAnalysis]: Checked inductivity of 575 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2021-12-07 00:37:21,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:37:21,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822313386] [2021-12-07 00:37:21,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822313386] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:37:21,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:37:21,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 00:37:21,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716786656] [2021-12-07 00:37:21,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:37:21,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-07 00:37:21,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:37:21,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-07 00:37:21,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-07 00:37:21,367 INFO L87 Difference]: Start difference. First operand 5002 states and 7023 transitions. Second operand has 11 states, 11 states have (on average 11.272727272727273) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (37), 8 states have call predecessors, (37), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-07 00:37:23,553 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:37:25,564 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:37:27,574 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:37:34,411 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:37:36,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:37:38,466 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:37:41,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:37:56,414 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-07 00:38:08,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:38:08,986 INFO L93 Difference]: Finished difference Result 9896 states and 14010 transitions. [2021-12-07 00:38:08,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 00:38:08,987 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.272727272727273) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (37), 8 states have call predecessors, (37), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 295 [2021-12-07 00:38:08,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:38:09,013 INFO L225 Difference]: With dead ends: 9896 [2021-12-07 00:38:09,013 INFO L226 Difference]: Without dead ends: 7187 [2021-12-07 00:38:09,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:38:09,023 INFO L933 BasicCegarLoop]: 4103 mSDtfsCounter, 3627 mSDsluCounter, 17389 mSDsCounter, 0 mSdLazyCounter, 9435 mSolverCounterSat, 1702 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3998 SdHoareTripleChecker+Valid, 21492 SdHoareTripleChecker+Invalid, 11145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1702 IncrementalHoareTripleChecker+Valid, 9435 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:38:09,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3998 Valid, 21492 Invalid, 11145 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1702 Valid, 9435 Invalid, 8 Unknown, 0 Unchecked, 47.0s Time] [2021-12-07 00:38:09,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7187 states. [2021-12-07 00:38:09,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7187 to 5008. [2021-12-07 00:38:09,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5008 states, 3788 states have (on average 1.3553326293558605) internal successors, (5134), 3840 states have internal predecessors, (5134), 942 states have call successors, (942), 271 states have call predecessors, (942), 274 states have return successors, (953), 928 states have call predecessors, (953), 938 states have call successors, (953) [2021-12-07 00:38:09,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5008 states to 5008 states and 7029 transitions. [2021-12-07 00:38:09,165 INFO L78 Accepts]: Start accepts. Automaton has 5008 states and 7029 transitions. Word has length 295 [2021-12-07 00:38:09,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:38:09,165 INFO L470 AbstractCegarLoop]: Abstraction has 5008 states and 7029 transitions. [2021-12-07 00:38:09,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.272727272727273) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (37), 8 states have call predecessors, (37), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-07 00:38:09,165 INFO L276 IsEmpty]: Start isEmpty. Operand 5008 states and 7029 transitions. [2021-12-07 00:38:09,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2021-12-07 00:38:09,170 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:38:09,170 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:38:09,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-07 00:38:09,170 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION === [uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION, uvc_deleteErr1ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:38:09,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:38:09,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1913747416, now seen corresponding path program 1 times [2021-12-07 00:38:09,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:38:09,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283524187] [2021-12-07 00:38:09,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:38:09,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:38:09,394 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 00:38:09,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [368235657] [2021-12-07 00:38:09,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:38:09,394 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:38:09,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:38:09,396 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:38:09,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-07 00:38:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:38:10,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 11691 conjuncts, 258 conjunts are in the unsatisfiable core [2021-12-07 00:38:10,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:38:11,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-07 00:38:11,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-12-07 00:38:12,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-12-07 00:38:12,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-07 00:38:13,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:38:13,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:38:13,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:38:13,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 39 [2021-12-07 00:38:13,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:38:13,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:38:13,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:38:13,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-12-07 00:38:13,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:38:13,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-12-07 00:38:13,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:38:13,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 30 [2021-12-07 00:38:16,203 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2201 Int)) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_atomic_inc_#in~v#1.base| (store (select |c_old(#memory_$Pointer$.base)| |c_atomic_inc_#in~v#1.base|) |c_atomic_inc_#in~v#1.offset| v_ArrVal_2201)))) (exists ((v_ArrVal_2200 Int)) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_atomic_inc_#in~v#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |c_atomic_inc_#in~v#1.base|) |c_atomic_inc_#in~v#1.offset| v_ArrVal_2200))))) is different from true [2021-12-07 00:38:16,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:38:16,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-12-07 00:38:16,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:38:16,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 30 [2021-12-07 00:38:18,354 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2207 Int)) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_atomic_dec_and_test_#in~v#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |c_atomic_dec_and_test_#in~v#1.base|) |c_atomic_dec_and_test_#in~v#1.offset| v_ArrVal_2207)))) (exists ((v_ArrVal_2205 Int)) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_atomic_dec_and_test_#in~v#1.base| (store (select |c_old(#memory_$Pointer$.base)| |c_atomic_dec_and_test_#in~v#1.base|) |c_atomic_dec_and_test_#in~v#1.offset| v_ArrVal_2205))))) is different from true [2021-12-07 00:38:18,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:38:18,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 30 [2021-12-07 00:38:18,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:38:18,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-12-07 00:38:19,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-12-07 00:38:19,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2021-12-07 00:38:19,413 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 145 proven. 26 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2021-12-07 00:38:19,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:38:23,777 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2021-12-07 00:38:23,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:38:23,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283524187] [2021-12-07 00:38:23,777 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-07 00:38:23,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368235657] [2021-12-07 00:38:23,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368235657] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-07 00:38:23,778 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 00:38:23,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [34] total 45 [2021-12-07 00:38:23,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96925532] [2021-12-07 00:38:23,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:38:23,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-07 00:38:23,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:38:23,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-07 00:38:23,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1702, Unknown=2, NotChecked=166, Total=1980 [2021-12-07 00:38:23,780 INFO L87 Difference]: Start difference. First operand 5008 states and 7029 transitions. Second operand has 13 states, 13 states have (on average 9.307692307692308) internal successors, (121), 11 states have internal predecessors, (121), 4 states have call successors, (34), 5 states have call predecessors, (34), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2021-12-07 00:38:25,922 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:38:27,934 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:38:29,947 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:38:31,960 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:38:33,976 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:38:35,987 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:38:38,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:38:52,833 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:38:54,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:38:56,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:38:58,912 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:39:00,933 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:39:02,950 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:39:04,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:39:09,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:39:24,004 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:39:26,018 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:39:28,070 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:39:30,081 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:39:32,144 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:40:02,624 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-07 00:40:04,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-07 00:40:22,050 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:40:24,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:40:24,943 INFO L93 Difference]: Finished difference Result 6615 states and 9283 transitions. [2021-12-07 00:40:24,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 00:40:24,945 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.307692307692308) internal successors, (121), 11 states have internal predecessors, (121), 4 states have call successors, (34), 5 states have call predecessors, (34), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 291 [2021-12-07 00:40:24,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:40:24,960 INFO L225 Difference]: With dead ends: 6615 [2021-12-07 00:40:24,961 INFO L226 Difference]: Without dead ends: 5646 [2021-12-07 00:40:24,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 591 GetRequests, 528 SyntacticMatches, 10 SemanticMatches, 53 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=178, Invalid=2584, Unknown=2, NotChecked=206, Total=2970 [2021-12-07 00:40:24,966 INFO L933 BasicCegarLoop]: 5177 mSDtfsCounter, 6045 mSDsluCounter, 38268 mSDsCounter, 0 mSdLazyCounter, 16221 mSolverCounterSat, 2295 mSolverCounterUnsat, 22 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 107.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6045 SdHoareTripleChecker+Valid, 43445 SdHoareTripleChecker+Invalid, 18538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2295 IncrementalHoareTripleChecker+Valid, 16221 IncrementalHoareTripleChecker+Invalid, 22 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 118.4s IncrementalHoareTripleChecker+Time [2021-12-07 00:40:24,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6045 Valid, 43445 Invalid, 18538 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2295 Valid, 16221 Invalid, 22 Unknown, 0 Unchecked, 118.4s Time] [2021-12-07 00:40:24,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5646 states. [2021-12-07 00:40:25,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5646 to 5254. [2021-12-07 00:40:25,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5254 states, 3986 states have (on average 1.35725037631711) internal successors, (5410), 4042 states have internal predecessors, (5410), 987 states have call successors, (987), 273 states have call predecessors, (987), 277 states have return successors, (1002), 973 states have call predecessors, (1002), 983 states have call successors, (1002) [2021-12-07 00:40:25,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5254 states to 5254 states and 7399 transitions. [2021-12-07 00:40:25,130 INFO L78 Accepts]: Start accepts. Automaton has 5254 states and 7399 transitions. Word has length 291 [2021-12-07 00:40:25,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:40:25,131 INFO L470 AbstractCegarLoop]: Abstraction has 5254 states and 7399 transitions. [2021-12-07 00:40:25,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.307692307692308) internal successors, (121), 11 states have internal predecessors, (121), 4 states have call successors, (34), 5 states have call predecessors, (34), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2021-12-07 00:40:25,131 INFO L276 IsEmpty]: Start isEmpty. Operand 5254 states and 7399 transitions. [2021-12-07 00:40:25,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2021-12-07 00:40:25,136 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:40:25,137 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:40:25,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-07 00:40:25,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-12-07 00:40:25,337 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION === [uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION, uvc_deleteErr1ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:40:25,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:40:25,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1688621126, now seen corresponding path program 1 times [2021-12-07 00:40:25,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:40:25,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588711520] [2021-12-07 00:40:25,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:40:25,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:40:25,529 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 00:40:25,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1818395975] [2021-12-07 00:40:25,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:40:25,530 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:40:25,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:40:25,531 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:40:25,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-07 00:40:35,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:40:35,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 11739 conjuncts, 234 conjunts are in the unsatisfiable core [2021-12-07 00:40:35,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:40:35,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-07 00:40:35,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-12-07 00:40:36,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-12-07 00:40:36,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-07 00:40:36,585 INFO L354 Elim1Store]: treesize reduction 70, result has 19.5 percent of original size [2021-12-07 00:40:36,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 39 [2021-12-07 00:40:36,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:40:36,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:40:36,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:40:36,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-12-07 00:40:36,645 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-12-07 00:40:36,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-12-07 00:40:36,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:40:36,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 30 [2021-12-07 00:40:36,828 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-12-07 00:40:36,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-12-07 00:40:36,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:40:36,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 30 [2021-12-07 00:40:37,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:40:37,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 30 [2021-12-07 00:40:37,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:40:37,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-12-07 00:40:37,385 INFO L354 Elim1Store]: treesize reduction 70, result has 19.5 percent of original size [2021-12-07 00:40:37,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 31 [2021-12-07 00:40:37,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:40:37,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:40:37,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:40:37,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 39 [2021-12-07 00:40:39,783 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2772 Int)) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_atomic_inc_#in~v#1.base| (store (select |c_old(#memory_$Pointer$.base)| |c_atomic_inc_#in~v#1.base|) |c_atomic_inc_#in~v#1.offset| v_ArrVal_2772)))) (exists ((v_ArrVal_2770 Int)) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_atomic_inc_#in~v#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |c_atomic_inc_#in~v#1.base|) |c_atomic_inc_#in~v#1.offset| v_ArrVal_2770))))) is different from true [2021-12-07 00:40:39,834 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-12-07 00:40:39,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-12-07 00:40:39,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:40:39,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 30 [2021-12-07 00:40:41,922 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2777 Int)) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_atomic_dec_and_test_#in~v#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |c_atomic_dec_and_test_#in~v#1.base|) |c_atomic_dec_and_test_#in~v#1.offset| v_ArrVal_2777)))) (exists ((v_ArrVal_2776 Int)) (= (store |c_old(#memory_$Pointer$.base)| |c_atomic_dec_and_test_#in~v#1.base| (store (select |c_old(#memory_$Pointer$.base)| |c_atomic_dec_and_test_#in~v#1.base|) |c_atomic_dec_and_test_#in~v#1.offset| v_ArrVal_2776)) |c_#memory_$Pointer$.base|))) is different from true [2021-12-07 00:40:41,979 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-12-07 00:40:41,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-12-07 00:40:41,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:40:41,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 30 [2021-12-07 00:40:42,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2021-12-07 00:40:42,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-12-07 00:40:42,834 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 145 proven. 26 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2021-12-07 00:40:42,834 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:40:52,602 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_#Ultimate.C_strcpy_#t~offset3371#1_6| Int) (v_ArrVal_2761 Int) (|v_ULTIMATE.start_#Ultimate.C_strcpy_dest#1.offset_4| Int) (v_ArrVal_2759 Int)) (or (< |v_ULTIMATE.start_#Ultimate.C_strcpy_dest#1.offset_4| (+ 2044 |c_ULTIMATE.start_uvc_probe_~dev~1#1.offset|)) (= (mod (let ((.cse0 (+ |v_ULTIMATE.start_#Ultimate.C_strcpy_#t~offset3371#1_6| |v_ULTIMATE.start_#Ultimate.C_strcpy_dest#1.offset_4|))) (+ (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_uvc_probe_~dev~1#1.base|) .cse0 v_ArrVal_2761) |c_ULTIMATE.start_uvc_probe_~dev~1#1.offset|) (select (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_uvc_probe_~dev~1#1.base|) .cse0 v_ArrVal_2759) |c_ULTIMATE.start_uvc_probe_~dev~1#1.offset|))) 18446744073709551616) 0) (< |v_ULTIMATE.start_#Ultimate.C_strcpy_#t~offset3371#1_6| 0))) is different from false [2021-12-07 00:40:52,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:40:52,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588711520] [2021-12-07 00:40:52,877 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-07 00:40:52,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818395975] [2021-12-07 00:40:52,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818395975] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:40:52,877 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-12-07 00:40:52,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2021-12-07 00:40:52,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458794243] [2021-12-07 00:40:52,877 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-12-07 00:40:52,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-07 00:40:52,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:40:52,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-07 00:40:52,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=852, Unknown=5, NotChecked=180, Total=1122 [2021-12-07 00:40:52,879 INFO L87 Difference]: Start difference. First operand 5254 states and 7399 transitions. Second operand has 24 states, 24 states have (on average 5.958333333333333) internal successors, (143), 20 states have internal predecessors, (143), 9 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (40), 10 states have call predecessors, (40), 9 states have call successors, (40) [2021-12-07 00:40:55,021 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:40:57,034 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:40:59,045 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:41:12,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:41:17,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:41:55,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:55,182 INFO L93 Difference]: Finished difference Result 8091 states and 11518 transitions. [2021-12-07 00:41:55,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-12-07 00:41:55,184 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 5.958333333333333) internal successors, (143), 20 states have internal predecessors, (143), 9 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (40), 10 states have call predecessors, (40), 9 states have call successors, (40) Word has length 296 [2021-12-07 00:41:55,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:55,215 INFO L225 Difference]: With dead ends: 8091 [2021-12-07 00:41:55,215 INFO L226 Difference]: Without dead ends: 7050 [2021-12-07 00:41:55,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 289 SyntacticMatches, 11 SemanticMatches, 52 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 16.7s TimeCoverageRelationStatistics Valid=247, Invalid=2310, Unknown=5, NotChecked=300, Total=2862 [2021-12-07 00:41:55,222 INFO L933 BasicCegarLoop]: 4931 mSDtfsCounter, 5934 mSDsluCounter, 57742 mSDsCounter, 0 mSdLazyCounter, 15470 mSolverCounterSat, 1949 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6111 SdHoareTripleChecker+Valid, 62673 SdHoareTripleChecker+Invalid, 35048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1949 IncrementalHoareTripleChecker+Valid, 15470 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 17624 IncrementalHoareTripleChecker+Unchecked, 59.3s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:55,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6111 Valid, 62673 Invalid, 35048 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1949 Valid, 15470 Invalid, 5 Unknown, 17624 Unchecked, 59.3s Time] [2021-12-07 00:41:55,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7050 states. [2021-12-07 00:41:55,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7050 to 5632. [2021-12-07 00:41:55,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5632 states, 4292 states have (on average 1.3623019571295434) internal successors, (5847), 4356 states have internal predecessors, (5847), 1044 states have call successors, (1044), 286 states have call predecessors, (1044), 292 states have return successors, (1091), 1026 states have call predecessors, (1091), 1040 states have call successors, (1091) [2021-12-07 00:41:55,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5632 states to 5632 states and 7982 transitions. [2021-12-07 00:41:55,430 INFO L78 Accepts]: Start accepts. Automaton has 5632 states and 7982 transitions. Word has length 296 [2021-12-07 00:41:55,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:55,431 INFO L470 AbstractCegarLoop]: Abstraction has 5632 states and 7982 transitions. [2021-12-07 00:41:55,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.958333333333333) internal successors, (143), 20 states have internal predecessors, (143), 9 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (40), 10 states have call predecessors, (40), 9 states have call successors, (40) [2021-12-07 00:41:55,431 INFO L276 IsEmpty]: Start isEmpty. Operand 5632 states and 7982 transitions. [2021-12-07 00:41:55,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2021-12-07 00:41:55,436 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:55,437 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:41:55,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-07 00:41:55,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-12-07 00:41:55,638 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION, uvc_deleteErr1ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:41:55,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:55,638 INFO L85 PathProgramCache]: Analyzing trace with hash 96294635, now seen corresponding path program 1 times [2021-12-07 00:41:55,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:55,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245515881] [2021-12-07 00:41:55,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:55,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:55,846 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 00:41:55,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1486028271] [2021-12-07 00:41:55,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:55,846 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:41:55,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:41:55,847 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:41:55,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-07 00:41:57,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:57,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 11665 conjuncts, 117 conjunts are in the unsatisfiable core [2021-12-07 00:41:57,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:41:57,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-07 00:41:59,542 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3267 Int) (atomic_set_~v.offset Int)) (and (= |c_#memory_int| (store |c_old(#memory_int)| |c_atomic_set_#in~v.base| (store (select |c_old(#memory_int)| |c_atomic_set_#in~v.base|) atomic_set_~v.offset v_ArrVal_3267))) (<= atomic_set_~v.offset |c_atomic_set_#in~v.offset|))) is different from true [2021-12-07 00:41:59,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:41:59,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-12-07 00:41:59,683 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-12-07 00:41:59,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-12-07 00:41:59,832 INFO L354 Elim1Store]: treesize reduction 84, result has 18.4 percent of original size [2021-12-07 00:41:59,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 31 [2021-12-07 00:41:59,863 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-12-07 00:41:59,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-12-07 00:42:00,304 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 455 trivial. 2 not checked. [2021-12-07 00:42:00,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:42:04,086 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_atomic_set_~v.offset_10 Int) (v_ArrVal_3291 Int)) (or (= (select (store (select |c_#memory_int| |c_ULTIMATE.start_uvc_probe_~dev~1#1.base|) v_atomic_set_~v.offset_10 v_ArrVal_3291) (+ 2726 |c_ULTIMATE.start_uvc_probe_~dev~1#1.offset|)) 0) (< (+ 228 |c_ULTIMATE.start_uvc_probe_~dev~1#1.offset|) v_atomic_set_~v.offset_10))) is different from false [2021-12-07 00:42:04,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:04,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245515881] [2021-12-07 00:42:04,091 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-07 00:42:04,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486028271] [2021-12-07 00:42:04,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1486028271] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:42:04,091 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-12-07 00:42:04,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-12-07 00:42:04,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639514579] [2021-12-07 00:42:04,092 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-12-07 00:42:04,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-07 00:42:04,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:04,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-07 00:42:04,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=356, Unknown=2, NotChecked=78, Total=506 [2021-12-07 00:42:04,093 INFO L87 Difference]: Start difference. First operand 5632 states and 7982 transitions. Second operand has 13 states, 12 states have (on average 10.916666666666666) internal successors, (131), 12 states have internal predecessors, (131), 5 states have call successors, (33), 3 states have call predecessors, (33), 7 states have return successors, (33), 6 states have call predecessors, (33), 5 states have call successors, (33) [2021-12-07 00:42:06,241 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:42:08,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:42:10,268 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:42:12,281 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:42:14,292 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:42:16,306 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:42:18,319 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:42:31,896 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:42:33,919 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:42:35,938 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:42:38,006 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:42:40,039 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:42:42,064 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:42:44,115 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:42:49,198 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:42:57,596 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:43:38,341 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:43:40,373 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:43:42,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:43:42,537 INFO L93 Difference]: Finished difference Result 9407 states and 13249 transitions. [2021-12-07 00:43:42,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 00:43:42,539 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 10.916666666666666) internal successors, (131), 12 states have internal predecessors, (131), 5 states have call successors, (33), 3 states have call predecessors, (33), 7 states have return successors, (33), 6 states have call predecessors, (33), 5 states have call successors, (33) Word has length 291 [2021-12-07 00:43:42,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:43:42,561 INFO L225 Difference]: With dead ends: 9407 [2021-12-07 00:43:42,561 INFO L226 Difference]: Without dead ends: 6608 [2021-12-07 00:43:42,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 337 SyntacticMatches, 6 SemanticMatches, 24 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=91, Invalid=466, Unknown=3, NotChecked=90, Total=650 [2021-12-07 00:43:42,571 INFO L933 BasicCegarLoop]: 3869 mSDtfsCounter, 1107 mSDsluCounter, 19728 mSDsCounter, 0 mSdLazyCounter, 17125 mSolverCounterSat, 658 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 86.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1251 SdHoareTripleChecker+Valid, 23597 SdHoareTripleChecker+Invalid, 24137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 658 IncrementalHoareTripleChecker+Valid, 17125 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 6339 IncrementalHoareTripleChecker+Unchecked, 93.5s IncrementalHoareTripleChecker+Time [2021-12-07 00:43:42,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1251 Valid, 23597 Invalid, 24137 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [658 Valid, 17125 Invalid, 15 Unknown, 6339 Unchecked, 93.5s Time] [2021-12-07 00:43:42,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6608 states. [2021-12-07 00:43:42,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6608 to 6053. [2021-12-07 00:43:42,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6053 states, 4650 states have (on average 1.3748387096774193) internal successors, (6393), 4727 states have internal predecessors, (6393), 1089 states have call successors, (1089), 294 states have call predecessors, (1089), 310 states have return successors, (1218), 1070 states have call predecessors, (1218), 1085 states have call successors, (1218) [2021-12-07 00:43:42,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6053 states to 6053 states and 8700 transitions. [2021-12-07 00:43:42,810 INFO L78 Accepts]: Start accepts. Automaton has 6053 states and 8700 transitions. Word has length 291 [2021-12-07 00:43:42,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:43:42,811 INFO L470 AbstractCegarLoop]: Abstraction has 6053 states and 8700 transitions. [2021-12-07 00:43:42,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 10.916666666666666) internal successors, (131), 12 states have internal predecessors, (131), 5 states have call successors, (33), 3 states have call predecessors, (33), 7 states have return successors, (33), 6 states have call predecessors, (33), 5 states have call successors, (33) [2021-12-07 00:43:42,811 INFO L276 IsEmpty]: Start isEmpty. Operand 6053 states and 8700 transitions. [2021-12-07 00:43:42,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2021-12-07 00:43:42,820 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:43:42,820 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:43:42,862 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-07 00:43:43,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:43:43,021 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION, uvc_deleteErr1ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 00:43:43,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:43:43,022 INFO L85 PathProgramCache]: Analyzing trace with hash -363167141, now seen corresponding path program 1 times [2021-12-07 00:43:43,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:43:43,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954732887] [2021-12-07 00:43:43,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:43:43,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:43:43,235 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 00:43:43,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [651912434] [2021-12-07 00:43:43,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:43:43,235 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:43:43,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:43:43,236 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:43:43,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b68ec4b-f1ba-415b-a3b0-47559bf2d339/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-07 00:43:44,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:43:44,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 11713 conjuncts, 127 conjunts are in the unsatisfiable core [2021-12-07 00:43:44,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:43:44,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-07 00:43:46,913 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3810 Int) (atomic_set_~v.offset Int)) (and (= |c_#memory_int| (store |c_old(#memory_int)| |c_atomic_set_#in~v.base| (store (select |c_old(#memory_int)| |c_atomic_set_#in~v.base|) atomic_set_~v.offset v_ArrVal_3810))) (<= atomic_set_~v.offset |c_atomic_set_#in~v.offset|))) is different from true [2021-12-07 00:43:46,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:43:46,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-12-07 00:43:47,084 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-12-07 00:43:47,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-12-07 00:43:47,276 INFO L354 Elim1Store]: treesize reduction 84, result has 18.4 percent of original size [2021-12-07 00:43:47,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 31 [2021-12-07 00:43:47,313 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-12-07 00:43:47,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-12-07 00:43:47,412 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-12-07 00:43:47,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-12-07 00:43:47,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:43:47,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-12-07 00:43:47,643 INFO L354 Elim1Store]: treesize reduction 84, result has 18.4 percent of original size [2021-12-07 00:43:47,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 31 [2021-12-07 00:43:48,142 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 455 trivial. 2 not checked. [2021-12-07 00:43:48,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:43:52,256 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3823 Int) (|v_ULTIMATE.start_#Ultimate.C_strcpy_#t~offset3371#1_7| Int) (|v_ULTIMATE.start_#Ultimate.C_strcpy_dest#1.offset_5| Int)) (or (= (select (store (select |c_#memory_int| |c_ULTIMATE.start_uvc_probe_~dev~1#1.base|) (+ |v_ULTIMATE.start_#Ultimate.C_strcpy_#t~offset3371#1_7| |v_ULTIMATE.start_#Ultimate.C_strcpy_dest#1.offset_5|) v_ArrVal_3823) (+ 2726 |c_ULTIMATE.start_uvc_probe_~dev~1#1.offset|)) 0) (< 0 |v_ULTIMATE.start_#Ultimate.C_strcpy_#t~offset3371#1_7|) (< (+ 2044 |c_ULTIMATE.start_uvc_probe_~dev~1#1.offset|) |v_ULTIMATE.start_#Ultimate.C_strcpy_dest#1.offset_5|))) is different from false [2021-12-07 00:43:52,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:43:52,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954732887] [2021-12-07 00:43:52,495 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-07 00:43:52,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651912434] [2021-12-07 00:43:52,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651912434] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:43:52,496 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-12-07 00:43:52,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-12-07 00:43:52,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967336925] [2021-12-07 00:43:52,496 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-12-07 00:43:52,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-07 00:43:52,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:43:52,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-07 00:43:52,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=433, Unknown=2, NotChecked=86, Total=600 [2021-12-07 00:43:52,497 INFO L87 Difference]: Start difference. First operand 6053 states and 8700 transitions. Second operand has 14 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 5 states have call successors, (34), 3 states have call predecessors, (34), 7 states have return successors, (34), 6 states have call predecessors, (34), 5 states have call successors, (34) [2021-12-07 00:43:54,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:43:56,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:43:58,672 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:44:00,691 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:44:02,701 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:44:04,717 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:44:18,142 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:44:20,161 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:44:22,178 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:44:24,189 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:44:26,221 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:44:28,240 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:44:33,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []