./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 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fa0e4b1-c026-44c4-a1bb-04446a923275/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fa0e4b1-c026-44c4-a1bb-04446a923275/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fa0e4b1-c026-44c4-a1bb-04446a923275/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fa0e4b1-c026-44c4-a1bb-04446a923275/bin/uautomizer-DQz5hQGWxF/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_9fa0e4b1-c026-44c4-a1bb-04446a923275/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fa0e4b1-c026-44c4-a1bb-04446a923275/bin/uautomizer-DQz5hQGWxF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e91317f289ae08033f6458d219d3b71fd8a7791b2777f777b60194968c497219 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:32:16,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:32:16,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:32:16,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:32:16,802 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:32:16,804 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:32:16,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:32:16,808 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:32:16,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:32:16,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:32:16,814 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:32:16,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:32:16,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:32:16,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:32:16,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:32:16,821 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:32:16,822 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:32:16,823 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:32:16,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:32:16,828 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:32:16,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:32:16,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:32:16,833 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:32:16,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:32:16,839 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:32:16,839 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:32:16,840 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:32:16,841 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:32:16,841 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:32:16,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:32:16,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:32:16,844 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:32:16,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:32:16,846 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:32:16,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:32:16,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:32:16,849 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:32:16,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:32:16,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:32:16,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:32:16,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:32:16,852 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fa0e4b1-c026-44c4-a1bb-04446a923275/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-20 05:32:16,876 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:32:16,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:32:16,877 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:32:16,877 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:32:16,878 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 05:32:16,878 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 05:32:16,879 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:32:16,879 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:32:16,880 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:32:16,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:32:16,880 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 05:32:16,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:32:16,881 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 05:32:16,881 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 05:32:16,882 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 05:32:16,882 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 05:32:16,882 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:32:16,882 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 05:32:16,883 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:32:16,883 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:32:16,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 05:32:16,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:32:16,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:32:16,884 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 05:32:16,884 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 05:32:16,885 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 05:32:16,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 05:32:16,885 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 05:32:16,886 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 05:32:16,886 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 05:32:16,886 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:32:16,886 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_9fa0e4b1-c026-44c4-a1bb-04446a923275/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fa0e4b1-c026-44c4-a1bb-04446a923275/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e91317f289ae08033f6458d219d3b71fd8a7791b2777f777b60194968c497219 [2021-11-20 05:32:17,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:32:17,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:32:17,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:32:17,232 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:32:17,233 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:32:17,234 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fa0e4b1-c026-44c4-a1bb-04446a923275/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i [2021-11-20 05:32:17,322 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fa0e4b1-c026-44c4-a1bb-04446a923275/bin/uautomizer-DQz5hQGWxF/data/27f3d6682/01ba067d28a04f2caca1b9f3b2e5122e/FLAG67b1ebd53 [2021-11-20 05:32:18,472 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:32:18,473 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fa0e4b1-c026-44c4-a1bb-04446a923275/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i [2021-11-20 05:32:18,564 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fa0e4b1-c026-44c4-a1bb-04446a923275/bin/uautomizer-DQz5hQGWxF/data/27f3d6682/01ba067d28a04f2caca1b9f3b2e5122e/FLAG67b1ebd53 [2021-11-20 05:32:18,682 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fa0e4b1-c026-44c4-a1bb-04446a923275/bin/uautomizer-DQz5hQGWxF/data/27f3d6682/01ba067d28a04f2caca1b9f3b2e5122e [2021-11-20 05:32:18,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:32:18,688 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:32:18,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:32:18,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:32:18,696 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:32:18,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:32:18" (1/1) ... [2021-11-20 05:32:18,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@706d8058 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:18, skipping insertion in model container [2021-11-20 05:32:18,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:32:18" (1/1) ... [2021-11-20 05:32:18,708 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:32:18,938 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:32:24,087 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_9fa0e4b1-c026-44c4-a1bb-04446a923275/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580326,580339] [2021-11-20 05:32:24,090 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_9fa0e4b1-c026-44c4-a1bb-04446a923275/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580473,580486] [2021-11-20 05:32:24,096 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_9fa0e4b1-c026-44c4-a1bb-04446a923275/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580612,580625] [2021-11-20 05:32:24,096 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_9fa0e4b1-c026-44c4-a1bb-04446a923275/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580770,580783] [2021-11-20 05:32:24,130 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:32:24,257 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:32:25,093 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_9fa0e4b1-c026-44c4-a1bb-04446a923275/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580326,580339] [2021-11-20 05:32:25,094 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_9fa0e4b1-c026-44c4-a1bb-04446a923275/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580473,580486] [2021-11-20 05:32:25,094 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_9fa0e4b1-c026-44c4-a1bb-04446a923275/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580612,580625] [2021-11-20 05:32:25,095 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_9fa0e4b1-c026-44c4-a1bb-04446a923275/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580770,580783] [2021-11-20 05:32:25,103 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:32:25,426 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:32:25,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:25 WrapperNode [2021-11-20 05:32:25,426 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:32:25,428 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:32:25,428 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:32:25,428 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:32:25,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:25" (1/1) ... [2021-11-20 05:32:25,628 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:25" (1/1) ... [2021-11-20 05:32:26,155 INFO L137 Inliner]: procedures = 524, calls = 8710, calls flagged for inlining = 290, calls inlined = 230, statements flattened = 12885 [2021-11-20 05:32:26,156 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:32:26,157 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:32:26,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:32:26,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:32:26,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:25" (1/1) ... [2021-11-20 05:32:26,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:25" (1/1) ... [2021-11-20 05:32:26,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:25" (1/1) ... [2021-11-20 05:32:26,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:25" (1/1) ... [2021-11-20 05:32:26,521 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:25" (1/1) ... [2021-11-20 05:32:26,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:25" (1/1) ... [2021-11-20 05:32:26,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:25" (1/1) ... [2021-11-20 05:32:26,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:32:26,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:32:26,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:32:26,883 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:32:26,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:25" (1/1) ... [2021-11-20 05:32:26,892 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:32:26,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fa0e4b1-c026-44c4-a1bb-04446a923275/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:32:26,919 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fa0e4b1-c026-44c4-a1bb-04446a923275/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 05:32:26,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fa0e4b1-c026-44c4-a1bb-04446a923275/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 05:32:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-20 05:32:26,962 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-20 05:32:26,963 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-11-20 05:32:26,963 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-11-20 05:32:26,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-20 05:32:26,963 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-20 05:32:26,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 05:32:26,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 05:32:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_read [2021-11-20 05:32:26,964 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_read [2021-11-20 05:32:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_release [2021-11-20 05:32:26,964 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_release [2021-11-20 05:32:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_find_control [2021-11-20 05:32:26,964 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_find_control [2021-11-20 05:32:26,965 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2021-11-20 05:32:26,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2021-11-20 05:32:26,965 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_ctrl_add_mapping [2021-11-20 05:32:26,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_ctrl_add_mapping [2021-11-20 05:32:26,965 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_buffer_finish [2021-11-20 05:32:26,965 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_buffer_finish [2021-11-20 05:32:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2021-11-20 05:32:26,966 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2021-11-20 05:32:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2021-11-20 05:32:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_wait_prepare [2021-11-20 05:32:26,966 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_wait_prepare [2021-11-20 05:32:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_alloc_urb_buffers [2021-11-20 05:32:26,967 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_alloc_urb_buffers [2021-11-20 05:32:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_clock_reset [2021-11-20 05:32:26,967 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_clock_reset [2021-11-20 05:32:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure usb_match_one_id [2021-11-20 05:32:26,967 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_match_one_id [2021-11-20 05:32:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-20 05:32:26,968 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-20 05:32:26,968 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-20 05:32:26,968 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get_ts [2021-11-20 05:32:26,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get_ts [2021-11-20 05:32:26,968 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_entity_by_id [2021-11-20 05:32:26,969 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_entity_by_id [2021-11-20 05:32:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-20 05:32:26,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-20 05:32:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-11-20 05:32:26,969 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-11-20 05:32:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-20 05:32:26,970 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-20 05:32:26,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-20 05:32:26,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-20 05:32:26,970 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-20 05:32:26,970 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-20 05:32:26,970 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2021-11-20 05:32:26,971 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2021-11-20 05:32:26,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 05:32:26,971 INFO L130 BoogieDeclarations]: Found specification of procedure __chk_range_not_ok [2021-11-20 05:32:26,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __chk_range_not_ok [2021-11-20 05:32:26,971 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_query_v4l2_ctrl [2021-11-20 05:32:26,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_query_v4l2_ctrl [2021-11-20 05:32:26,972 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_data [2021-11-20 05:32:26,972 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_data [2021-11-20 05:32:26,972 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-20 05:32:26,972 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-20 05:32:26,972 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2021-11-20 05:32:26,973 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2021-11-20 05:32:26,973 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_ioctl [2021-11-20 05:32:26,973 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_ioctl [2021-11-20 05:32:26,973 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-20 05:32:26,973 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-20 05:32:26,973 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_populate_cache [2021-11-20 05:32:26,973 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_populate_cache [2021-11-20 05:32:26,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 05:32:26,974 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_add_info [2021-11-20 05:32:26,974 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_add_info [2021-11-20 05:32:26,974 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-20 05:32:26,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-20 05:32:26,974 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_buffer_done [2021-11-20 05:32:26,975 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_buffer_done [2021-11-20 05:32:26,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 05:32:26,975 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_query_ctrl [2021-11-20 05:32:26,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_query_ctrl [2021-11-20 05:32:26,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-20 05:32:26,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-20 05:32:26,976 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_wait_finish [2021-11-20 05:32:26,976 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_wait_finish [2021-11-20 05:32:26,976 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_reset_resume [2021-11-20 05:32:26,976 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_reset_resume [2021-11-20 05:32:26,976 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-11-20 05:32:26,976 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-11-20 05:32:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 05:32:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2021-11-20 05:32:26,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2021-11-20 05:32:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 05:32:26,977 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 05:32:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-20 05:32:26,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-20 05:32:26,978 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-20 05:32:26,978 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-20 05:32:26,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-20 05:32:26,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-20 05:32:26,978 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_scan_chain_forward [2021-11-20 05:32:26,979 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_scan_chain_forward [2021-11-20 05:32:26,979 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2021-11-20 05:32:26,979 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2021-11-20 05:32:26,979 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_commit_video [2021-11-20 05:32:26,979 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_commit_video [2021-11-20 05:32:26,979 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2021-11-20 05:32:26,980 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-20 05:32:26,980 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-20 05:32:26,980 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64_rem [2021-11-20 05:32:26,980 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64_rem [2021-11-20 05:32:26,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 05:32:26,981 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2021-11-20 05:32:26,981 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2021-11-20 05:32:26,981 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_ctrl_get [2021-11-20 05:32:26,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_ctrl_get [2021-11-20 05:32:26,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 05:32:26,982 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_find_endpoint [2021-11-20 05:32:26,982 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_find_endpoint [2021-11-20 05:32:26,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-20 05:32:26,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-20 05:32:26,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 05:32:26,982 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-20 05:32:26,983 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_endpoint_max_bpi [2021-11-20 05:32:26,983 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_endpoint_max_bpi [2021-11-20 05:32:26,983 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-20 05:32:26,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-20 05:32:26,983 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_set_video_ctrl [2021-11-20 05:32:26,983 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_set_video_ctrl [2021-11-20 05:32:26,984 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-11-20 05:32:26,984 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-11-20 05:32:26,984 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_delete [2021-11-20 05:32:26,984 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_delete [2021-11-20 05:32:26,984 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_commit_entity [2021-11-20 05:32:26,984 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_commit_entity [2021-11-20 05:32:26,984 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_free_urb_buffers [2021-11-20 05:32:26,985 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_free_urb_buffers [2021-11-20 05:32:26,985 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_del_event [2021-11-20 05:32:26,985 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_del_event [2021-11-20 05:32:26,985 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user [2021-11-20 05:32:26,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user [2021-11-20 05:32:26,985 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_open [2021-11-20 05:32:26,986 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_open [2021-11-20 05:32:26,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:32:26,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:32:26,986 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-11-20 05:32:26,986 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-11-20 05:32:26,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 05:32:26,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 05:32:26,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 05:32:26,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 05:32:26,987 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2021-11-20 05:32:26,987 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2021-11-20 05:32:26,987 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_fill_event [2021-11-20 05:32:26,987 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_fill_event [2021-11-20 05:32:26,988 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2021-11-20 05:32:26,988 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2021-11-20 05:32:26,988 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_get_plane_payload [2021-11-20 05:32:26,988 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_get_plane_payload [2021-11-20 05:32:26,988 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2021-11-20 05:32:26,988 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2021-11-20 05:32:26,988 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-11-20 05:32:26,989 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-11-20 05:32:26,989 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2021-11-20 05:32:26,989 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2021-11-20 05:32:26,989 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2021-11-20 05:32:26,989 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2021-11-20 05:32:26,989 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_debugfs_cleanup [2021-11-20 05:32:26,989 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_debugfs_cleanup [2021-11-20 05:32:26,990 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2021-11-20 05:32:26,990 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2021-11-20 05:32:26,990 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-20 05:32:26,990 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-20 05:32:26,990 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_queue_fh [2021-11-20 05:32:26,990 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_queue_fh [2021-11-20 05:32:26,991 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_init_video [2021-11-20 05:32:26,991 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_init_video [2021-11-20 05:32:26,991 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_status_start [2021-11-20 05:32:26,991 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_status_start [2021-11-20 05:32:26,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 05:32:26,991 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 05:32:26,991 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_intf [2021-11-20 05:32:26,992 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_intf [2021-11-20 05:32:26,992 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR_OR_NULL [2021-11-20 05:32:26,992 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR_OR_NULL [2021-11-20 05:32:26,992 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_find_control [2021-11-20 05:32:26,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_find_control [2021-11-20 05:32:26,992 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_clock_cleanup [2021-11-20 05:32:26,993 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_clock_cleanup [2021-11-20 05:32:26,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-20 05:32:26,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-20 05:32:26,993 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-11-20 05:32:26,993 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-11-20 05:32:26,993 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64 [2021-11-20 05:32:26,993 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64 [2021-11-20 05:32:26,994 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_buffer_prepare [2021-11-20 05:32:26,994 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_buffer_prepare [2021-11-20 05:32:26,994 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-20 05:32:26,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-20 05:32:26,994 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_set_zoom [2021-11-20 05:32:26,994 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_set_zoom [2021-11-20 05:32:26,995 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_test_bit [2021-11-20 05:32:26,995 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_test_bit [2021-11-20 05:32:26,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 05:32:26,995 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-20 05:32:26,995 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-20 05:32:26,995 INFO L130 BoogieDeclarations]: Found specification of procedure copy_in_user [2021-11-20 05:32:26,996 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_in_user [2021-11-20 05:32:26,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 05:32:26,996 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_status_stop [2021-11-20 05:32:26,996 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_status_stop [2021-11-20 05:32:26,996 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_alloc_entity [2021-11-20 05:32:26,996 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_alloc_entity [2021-11-20 05:32:26,996 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2021-11-20 05:32:26,997 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2021-11-20 05:32:26,997 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_query_ctrl [2021-11-20 05:32:26,997 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_query_ctrl [2021-11-20 05:32:26,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 05:32:26,997 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-20 05:32:26,997 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-20 05:32:26,998 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-20 05:32:26,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-20 05:32:26,998 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-20 05:32:26,998 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-20 05:32:26,998 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-20 05:32:26,998 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-20 05:32:26,999 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_dismiss_privileges [2021-11-20 05:32:26,999 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_dismiss_privileges [2021-11-20 05:32:26,999 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-20 05:32:26,999 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-20 05:32:26,999 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-20 05:32:26,999 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-20 05:32:27,000 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~__u8~0~X~$Pointer$~TO~~__s32~0 [2021-11-20 05:32:27,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~__u8~0~X~$Pointer$~TO~~__s32~0 [2021-11-20 05:32:27,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-20 05:32:27,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-20 05:32:27,074 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_clock_host_sof [2021-11-20 05:32:27,074 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_clock_host_sof [2021-11-20 05:32:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-11-20 05:32:27,075 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-11-20 05:32:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-20 05:32:27,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-20 05:32:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-20 05:32:27,075 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-20 05:32:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure compat_alloc_user_space [2021-11-20 05:32:27,075 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_alloc_user_space [2021-11-20 05:32:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_plane_size [2021-11-20 05:32:27,075 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_plane_size [2021-11-20 05:32:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2021-11-20 05:32:27,076 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2021-11-20 05:32:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_print_terms [2021-11-20 05:32:27,076 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_print_terms [2021-11-20 05:32:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-20 05:32:27,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-20 05:32:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_has_privileges [2021-11-20 05:32:27,076 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_has_privileges [2021-11-20 05:32:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_enable [2021-11-20 05:32:27,076 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_enable [2021-11-20 05:32:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 05:32:27,077 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 05:32:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 05:32:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 05:32:27,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 05:32:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2021-11-20 05:32:27,077 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2021-11-20 05:32:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_init [2021-11-20 05:32:27,077 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_init [2021-11-20 05:32:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-20 05:32:27,077 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-20 05:32:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_entity_match_guid [2021-11-20 05:32:27,078 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_entity_match_guid [2021-11-20 05:32:27,078 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-20 05:32:27,078 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-20 05:32:27,078 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_uninit_video [2021-11-20 05:32:27,078 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_uninit_video [2021-11-20 05:32:27,078 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_debugfs_cleanup_stream [2021-11-20 05:32:27,078 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_debugfs_cleanup_stream [2021-11-20 05:32:27,078 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2021-11-20 05:32:27,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2021-11-20 05:32:27,078 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_queue_enable [2021-11-20 05:32:27,079 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_queue_enable [2021-11-20 05:32:27,079 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_get_video_ctrl [2021-11-20 05:32:27,079 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_get_video_ctrl [2021-11-20 05:32:27,079 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2021-11-20 05:32:27,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2021-11-20 05:32:27,079 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2021-11-20 05:32:27,079 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2021-11-20 05:32:27,079 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_get_drv_priv [2021-11-20 05:32:27,079 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_get_drv_priv [2021-11-20 05:32:27,079 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2021-11-20 05:32:27,079 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2021-11-20 05:32:27,080 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-20 05:32:27,080 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-20 05:32:27,080 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_buffer_queue [2021-11-20 05:32:27,080 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_buffer_queue [2021-11-20 05:32:27,080 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_resume [2021-11-20 05:32:27,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_resume [2021-11-20 05:32:27,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-20 05:32:27,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-20 05:32:27,080 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_unregister_video [2021-11-20 05:32:27,080 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_unregister_video [2021-11-20 05:32:27,080 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intf [2021-11-20 05:32:27,081 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intf [2021-11-20 05:32:27,081 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_resume [2021-11-20 05:32:27,081 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_resume [2021-11-20 05:32:27,081 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2021-11-20 05:32:27,081 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2021-11-20 05:32:27,081 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_cleanup [2021-11-20 05:32:27,081 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_cleanup [2021-11-20 05:32:27,081 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_queue_streaming [2021-11-20 05:32:27,081 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_queue_streaming [2021-11-20 05:32:27,081 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_disconnect [2021-11-20 05:32:27,081 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_disconnect [2021-11-20 05:32:27,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 05:32:27,082 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2021-11-20 05:32:27,082 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2021-11-20 05:32:27,082 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_get_zoom [2021-11-20 05:32:27,082 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_get_zoom [2021-11-20 05:32:27,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-20 05:32:27,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-20 05:32:28,331 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:32:28,339 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:32:28,556 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 05:32:28,940 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10812: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-11-20 05:32:28,940 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10816: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-11-20 05:32:28,940 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; [2021-11-20 05:32:28,940 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; [2021-11-20 05:32:28,941 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; [2021-11-20 05:32:28,941 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 [2021-11-20 05:32:28,941 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; [2021-11-20 05:32:28,941 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; [2021-11-20 05:32:28,941 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10827: assume 10 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-20 05:32:28,941 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10827: assume !(10 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-20 05:32:28,941 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10831: assume 16 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-20 05:32:28,942 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10831: assume !(16 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-20 05:32:28,942 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume 1 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-20 05:32:28,942 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10819: assume 4 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-20 05:32:28,942 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10819: assume !(4 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-20 05:32:28,942 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; [2021-11-20 05:32:28,942 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !(1 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-20 05:32:28,942 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10823: assume 8 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-20 05:32:28,943 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10823: assume !(8 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-20 05:32:28,943 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10815: assume 2 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-20 05:32:28,943 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10815: assume !(2 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-20 05:32:28,943 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 [2021-11-20 05:32:28,943 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 [2021-11-20 05:32:28,943 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10820: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-11-20 05:32:28,944 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); [2021-11-20 05:32:28,944 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10824: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-11-20 05:32:31,785 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); [2021-11-20 05:32:31,785 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; [2021-11-20 05:32:31,785 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10722: assume 16 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-20 05:32:31,785 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10722: assume !(16 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-20 05:32:31,785 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 [2021-11-20 05:32:31,785 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10714: assume 8 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-20 05:32:31,786 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10714: assume !(8 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-20 05:32:31,786 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10718: assume 10 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-20 05:32:31,786 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10718: assume !(10 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-20 05:32:31,786 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10706: assume 2 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-20 05:32:31,786 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10706: assume !(2 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-20 05:32:31,786 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10710: assume 4 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-20 05:32:31,786 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10710: assume !(4 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-20 05:32:31,786 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 [2021-11-20 05:32:31,786 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10715: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-11-20 05:32:31,786 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; [2021-11-20 05:32:31,786 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 [2021-11-20 05:32:31,787 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10707: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-11-20 05:32:31,787 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10711: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-11-20 05:32:31,787 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; [2021-11-20 05:32:31,787 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; [2021-11-20 05:32:31,787 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10703: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-11-20 05:32:31,787 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume 1 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-20 05:32:31,787 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !(1 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-20 05:32:31,787 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; [2021-11-20 05:32:31,787 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; [2021-11-20 05:36:00,863 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:36:00,913 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:36:00,913 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-20 05:36:00,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:36:00 BoogieIcfgContainer [2021-11-20 05:36:00,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:36:00,923 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 05:36:00,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 05:36:00,926 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 05:36:00,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:32:18" (1/3) ... [2021-11-20 05:36:00,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@363a6476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:36:00, skipping insertion in model container [2021-11-20 05:36:00,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:25" (2/3) ... [2021-11-20 05:36:00,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@363a6476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:36:00, skipping insertion in model container [2021-11-20 05:36:00,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:36:00" (3/3) ... [2021-11-20 05:36:00,929 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i [2021-11-20 05:36:00,935 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 05:36:00,935 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-20 05:36:00,994 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 05:36:01,000 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 05:36:01,001 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-20 05:36:01,076 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) [2021-11-20 05:36:01,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-20 05:36:01,086 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:01,087 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] [2021-11-20 05:36:01,087 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)] === [2021-11-20 05:36:01,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:01,093 INFO L85 PathProgramCache]: Analyzing trace with hash -546262545, now seen corresponding path program 1 times [2021-11-20 05:36:01,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:01,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513513956] [2021-11-20 05:36:01,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:01,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:01,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:02,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 05:36:02,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:02,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:36:02,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:02,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:36:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:02,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 05:36:02,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:02,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-20 05:36:02,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:02,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 05:36:02,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:02,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-20 05:36:02,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:02,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:36:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:02,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 05:36:02,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:02,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 05:36:02,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:02,646 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-20 05:36:02,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:02,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513513956] [2021-11-20 05:36:02,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513513956] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:02,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:02,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 05:36:02,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750842922] [2021-11-20 05:36:02,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:02,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 05:36:02,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:02,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:36:02,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:36:02,690 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) [2021-11-20 05:36:04,996 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:36:08,612 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:36:12,068 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:36:21,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:21,759 INFO L93 Difference]: Finished difference Result 9206 states and 13169 transitions. [2021-11-20 05:36:21,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:36:21,763 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 [2021-11-20 05:36:21,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:21,847 INFO L225 Difference]: With dead ends: 9206 [2021-11-20 05:36:21,848 INFO L226 Difference]: Without dead ends: 5532 [2021-11-20 05:36:21,875 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 [2021-11-20 05:36:21,880 INFO L933 BasicCegarLoop]: 6530 mSDtfsCounter, 5297 mSDsluCounter, 12322 mSDsCounter, 0 mSdLazyCounter, 3555 mSolverCounterSat, 1515 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5770 SdHoareTripleChecker+Valid, 18852 SdHoareTripleChecker+Invalid, 5073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1515 IncrementalHoareTripleChecker+Valid, 3555 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:21,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5770 Valid, 18852 Invalid, 5073 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1515 Valid, 3555 Invalid, 3 Unknown, 0 Unchecked, 18.2s Time] [2021-11-20 05:36:21,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5532 states. [2021-11-20 05:36:22,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5532 to 4935. [2021-11-20 05:36:22,235 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) [2021-11-20 05:36:22,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4935 states to 4935 states and 6950 transitions. [2021-11-20 05:36:22,277 INFO L78 Accepts]: Start accepts. Automaton has 4935 states and 6950 transitions. Word has length 75 [2021-11-20 05:36:22,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:22,278 INFO L470 AbstractCegarLoop]: Abstraction has 4935 states and 6950 transitions. [2021-11-20 05:36:22,279 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) [2021-11-20 05:36:22,279 INFO L276 IsEmpty]: Start isEmpty. Operand 4935 states and 6950 transitions. [2021-11-20 05:36:22,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-11-20 05:36:22,297 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:22,297 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] [2021-11-20 05:36:22,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 05:36:22,298 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)] === [2021-11-20 05:36:22,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:22,299 INFO L85 PathProgramCache]: Analyzing trace with hash -318568577, now seen corresponding path program 1 times [2021-11-20 05:36:22,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:22,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276024615] [2021-11-20 05:36:22,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:22,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:22,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 05:36:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:36:23,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:36:23,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 05:36:23,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-20 05:36:23,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 05:36:23,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-20 05:36:23,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:36:23,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:36:23,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:36:23,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 05:36:23,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:36:23,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:36:23,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:36:23,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-20 05:36:23,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:36:23,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:36:23,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:36:23,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-20 05:36:23,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:36:23,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:36:23,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:36:23,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-20 05:36:23,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:36:23,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:36:23,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:36:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-20 05:36:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:36:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:36:23,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,577 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2021-11-20 05:36:23,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:23,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276024615] [2021-11-20 05:36:23,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276024615] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:23,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:23,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:36:23,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348091577] [2021-11-20 05:36:23,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:23,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:36:23,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:23,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:36:23,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:36:23,583 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) [2021-11-20 05:36:25,814 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:36:29,399 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:36:31,867 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:36:36,317 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:36:51,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:51,190 INFO L93 Difference]: Finished difference Result 6429 states and 9285 transitions. [2021-11-20 05:36:51,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 05:36:51,191 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 [2021-11-20 05:36:51,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:51,248 INFO L225 Difference]: With dead ends: 6429 [2021-11-20 05:36:51,248 INFO L226 Difference]: Without dead ends: 6427 [2021-11-20 05:36:51,254 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 [2021-11-20 05:36:51,255 INFO L933 BasicCegarLoop]: 6348 mSDtfsCounter, 6249 mSDsluCounter, 12641 mSDsCounter, 0 mSdLazyCounter, 4318 mSolverCounterSat, 2698 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6819 SdHoareTripleChecker+Valid, 18989 SdHoareTripleChecker+Invalid, 7020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2698 IncrementalHoareTripleChecker+Valid, 4318 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:51,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6819 Valid, 18989 Invalid, 7020 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2698 Valid, 4318 Invalid, 4 Unknown, 0 Unchecked, 27.0s Time] [2021-11-20 05:36:51,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6427 states. [2021-11-20 05:36:51,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6427 to 4976. [2021-11-20 05:36:51,481 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) [2021-11-20 05:36:51,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4976 states to 4976 states and 6989 transitions. [2021-11-20 05:36:51,503 INFO L78 Accepts]: Start accepts. Automaton has 4976 states and 6989 transitions. Word has length 182 [2021-11-20 05:36:51,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:51,504 INFO L470 AbstractCegarLoop]: Abstraction has 4976 states and 6989 transitions. [2021-11-20 05:36:51,505 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) [2021-11-20 05:36:51,505 INFO L276 IsEmpty]: Start isEmpty. Operand 4976 states and 6989 transitions. [2021-11-20 05:36:51,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-11-20 05:36:51,513 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:51,514 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] [2021-11-20 05:36:51,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 05:36:51,515 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)] === [2021-11-20 05:36:51,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:51,515 INFO L85 PathProgramCache]: Analyzing trace with hash -843534642, now seen corresponding path program 1 times [2021-11-20 05:36:51,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:51,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997497016] [2021-11-20 05:36:51,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:51,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:51,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 05:36:52,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:36:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:36:52,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 05:36:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-20 05:36:52,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 05:36:52,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-20 05:36:52,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:36:52,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:36:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:36:52,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 05:36:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:36:52,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:36:52,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:36:52,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-20 05:36:52,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:36:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:36:52,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:36:52,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-20 05:36:52,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:36:52,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:36:52,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:36:52,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-20 05:36:52,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:36:52,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:36:52,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:36:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-20 05:36:52,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:36:52,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:36:52,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-20 05:36:52,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-20 05:36:52,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-20 05:36:52,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-20 05:36:52,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-20 05:36:52,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 05:36:52,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-20 05:36:52,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:36:52,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:36:52,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-20 05:36:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-20 05:36:52,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-20 05:36:52,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:53,004 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2021-11-20 05:36:53,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:53,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997497016] [2021-11-20 05:36:53,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997497016] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:53,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:53,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 05:36:53,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817116552] [2021-11-20 05:36:53,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:53,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 05:36:53,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:53,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 05:36:53,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:36:53,008 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) [2021-11-20 05:36:55,244 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:36:57,254 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:37:00,818 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:37:02,861 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:37:04,897 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:37:06,951 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:37:09,608 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:37:24,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:37:24,679 INFO L93 Difference]: Finished difference Result 10062 states and 14344 transitions. [2021-11-20 05:37:24,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:37:24,680 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 [2021-11-20 05:37:24,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:37:24,736 INFO L225 Difference]: With dead ends: 10062 [2021-11-20 05:37:24,736 INFO L226 Difference]: Without dead ends: 7353 [2021-11-20 05:37:24,752 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 [2021-11-20 05:37:24,753 INFO L933 BasicCegarLoop]: 4904 mSDtfsCounter, 4873 mSDsluCounter, 11901 mSDsCounter, 0 mSdLazyCounter, 5195 mSolverCounterSat, 2957 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4983 SdHoareTripleChecker+Valid, 16805 SdHoareTripleChecker+Invalid, 8159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2957 IncrementalHoareTripleChecker+Valid, 5195 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:37:24,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4983 Valid, 16805 Invalid, 8159 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2957 Valid, 5195 Invalid, 7 Unknown, 0 Unchecked, 31.2s Time] [2021-11-20 05:37:24,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7353 states. [2021-11-20 05:37:24,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7353 to 4980. [2021-11-20 05:37:25,016 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) [2021-11-20 05:37:25,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4980 states to 4980 states and 6993 transitions. [2021-11-20 05:37:25,044 INFO L78 Accepts]: Start accepts. Automaton has 4980 states and 6993 transitions. Word has length 260 [2021-11-20 05:37:25,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:37:25,046 INFO L470 AbstractCegarLoop]: Abstraction has 4980 states and 6993 transitions. [2021-11-20 05:37:25,048 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) [2021-11-20 05:37:25,048 INFO L276 IsEmpty]: Start isEmpty. Operand 4980 states and 6993 transitions. [2021-11-20 05:37:25,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2021-11-20 05:37:25,058 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:37:25,060 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] [2021-11-20 05:37:25,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 05:37:25,061 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)] === [2021-11-20 05:37:25,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:37:25,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1087155223, now seen corresponding path program 1 times [2021-11-20 05:37:25,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:37:25,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572598199] [2021-11-20 05:37:25,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:25,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:37:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:25,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 05:37:25,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:25,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:37:25,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:25,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:37:25,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:25,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 05:37:25,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:25,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-20 05:37:25,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:25,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 05:37:25,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:25,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-20 05:37:25,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:25,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:37:25,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:25,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:37:25,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:25,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:37:25,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:25,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 05:37:25,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:25,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:37:25,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:25,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:37:25,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:25,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:37:25,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:25,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-20 05:37:25,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:25,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:37:25,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:25,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:37:25,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:25,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:37:25,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:25,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-20 05:37:25,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:25,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:37:25,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:25,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:37:25,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:25,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:37:25,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:25,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-20 05:37:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:25,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:37:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:25,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:37:25,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:25,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:37:25,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:25,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-20 05:37:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:25,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:37:25,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:25,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:37:25,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:26,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-20 05:37:26,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:26,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-20 05:37:26,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:26,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-20 05:37:26,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:26,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-20 05:37:26,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:26,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-20 05:37:26,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:26,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 05:37:26,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:26,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-20 05:37:26,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:26,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:37:26,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:26,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:37:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:26,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-20 05:37:26,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:26,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-20 05:37:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:26,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-11-20 05:37:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:26,164 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2021-11-20 05:37:26,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:37:26,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572598199] [2021-11-20 05:37:26,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572598199] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:37:26,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:37:26,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:37:26,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70025043] [2021-11-20 05:37:26,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:37:26,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:37:26,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:37:26,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:37:26,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:37:26,167 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) [2021-11-20 05:37:28,408 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:37:30,427 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:37:34,348 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:37:36,373 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:37:39,420 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:37:56,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:37:56,134 INFO L93 Difference]: Finished difference Result 10867 states and 15448 transitions. [2021-11-20 05:37:56,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:37:56,135 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 [2021-11-20 05:37:56,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:37:56,178 INFO L225 Difference]: With dead ends: 10867 [2021-11-20 05:37:56,179 INFO L226 Difference]: Without dead ends: 5959 [2021-11-20 05:37:56,198 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 [2021-11-20 05:37:56,200 INFO L933 BasicCegarLoop]: 3782 mSDtfsCounter, 2131 mSDsluCounter, 8381 mSDsCounter, 0 mSdLazyCounter, 4692 mSolverCounterSat, 1620 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2240 SdHoareTripleChecker+Valid, 12163 SdHoareTripleChecker+Invalid, 6317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1620 IncrementalHoareTripleChecker+Valid, 4692 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.5s IncrementalHoareTripleChecker+Time [2021-11-20 05:37:56,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2240 Valid, 12163 Invalid, 6317 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1620 Valid, 4692 Invalid, 5 Unknown, 0 Unchecked, 29.5s Time] [2021-11-20 05:37:56,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5959 states. [2021-11-20 05:37:56,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5959 to 4982. [2021-11-20 05:37:56,578 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) [2021-11-20 05:37:56,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4982 states to 4982 states and 6995 transitions. [2021-11-20 05:37:56,596 INFO L78 Accepts]: Start accepts. Automaton has 4982 states and 6995 transitions. Word has length 270 [2021-11-20 05:37:56,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:37:56,597 INFO L470 AbstractCegarLoop]: Abstraction has 4982 states and 6995 transitions. [2021-11-20 05:37:56,598 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) [2021-11-20 05:37:56,598 INFO L276 IsEmpty]: Start isEmpty. Operand 4982 states and 6995 transitions. [2021-11-20 05:37:56,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2021-11-20 05:37:56,607 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:37:56,608 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] [2021-11-20 05:37:56,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 05:37:56,608 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)] === [2021-11-20 05:37:56,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:37:56,609 INFO L85 PathProgramCache]: Analyzing trace with hash -758211943, now seen corresponding path program 1 times [2021-11-20 05:37:56,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:37:56,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945169536] [2021-11-20 05:37:56,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:56,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:37:56,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 05:37:57,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:37:57,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:37:57,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 05:37:57,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-20 05:37:57,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 05:37:57,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-20 05:37:57,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:37:57,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:37:57,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:37:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 05:37:57,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:37:57,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:37:57,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:37:57,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-20 05:37:57,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:37:57,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:37:57,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:37:57,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-20 05:37:57,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:37:57,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:37:57,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:37:57,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-20 05:37:57,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:37:57,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:37:57,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:37:57,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-20 05:37:57,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:37:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:37:57,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-20 05:37:57,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-20 05:37:57,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-20 05:37:57,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-20 05:37:57,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-20 05:37:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 05:37:57,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-20 05:37:57,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:37:57,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:37:57,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-20 05:37:57,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-20 05:37:57,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-11-20 05:37:57,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:57,856 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2021-11-20 05:37:57,856 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:37:57,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945169536] [2021-11-20 05:37:57,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945169536] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:37:57,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:37:57,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:37:57,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190639178] [2021-11-20 05:37:57,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:37:57,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 05:37:57,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:37:57,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 05:37:57,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:37:57,864 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) [2021-11-20 05:38:00,129 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:38:02,142 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:38:06,903 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:38:08,937 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:38:12,008 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:38:30,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:38:30,645 INFO L93 Difference]: Finished difference Result 8674 states and 12146 transitions. [2021-11-20 05:38:30,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 05:38:30,645 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 [2021-11-20 05:38:30,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:38:30,680 INFO L225 Difference]: With dead ends: 8674 [2021-11-20 05:38:30,680 INFO L226 Difference]: Without dead ends: 5969 [2021-11-20 05:38:30,693 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 [2021-11-20 05:38:30,694 INFO L933 BasicCegarLoop]: 3790 mSDtfsCounter, 2138 mSDsluCounter, 18081 mSDsCounter, 0 mSdLazyCounter, 7775 mSolverCounterSat, 1615 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2248 SdHoareTripleChecker+Valid, 21871 SdHoareTripleChecker+Invalid, 9395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1615 IncrementalHoareTripleChecker+Valid, 7775 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:38:30,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2248 Valid, 21871 Invalid, 9395 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1615 Valid, 7775 Invalid, 5 Unknown, 0 Unchecked, 32.2s Time] [2021-11-20 05:38:30,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5969 states. [2021-11-20 05:38:30,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5969 to 4992. [2021-11-20 05:38:30,903 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) [2021-11-20 05:38:30,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4992 states to 4992 states and 7005 transitions. [2021-11-20 05:38:30,920 INFO L78 Accepts]: Start accepts. Automaton has 4992 states and 7005 transitions. Word has length 270 [2021-11-20 05:38:30,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:38:30,925 INFO L470 AbstractCegarLoop]: Abstraction has 4992 states and 7005 transitions. [2021-11-20 05:38:30,925 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) [2021-11-20 05:38:30,925 INFO L276 IsEmpty]: Start isEmpty. Operand 4992 states and 7005 transitions. [2021-11-20 05:38:30,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2021-11-20 05:38:30,934 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:38:30,934 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] [2021-11-20 05:38:30,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 05:38:30,935 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)] === [2021-11-20 05:38:30,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:38:30,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1779280297, now seen corresponding path program 1 times [2021-11-20 05:38:30,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:38:30,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130356834] [2021-11-20 05:38:30,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:38:30,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:38:31,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:31,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 05:38:31,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:31,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:38:31,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:31,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:38:31,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:31,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 05:38:31,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:31,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-20 05:38:31,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:31,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 05:38:31,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:31,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-20 05:38:31,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:31,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:38:31,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:31,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:38:31,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:31,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:38:31,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:31,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 05:38:31,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:31,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:38:31,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:31,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:38:31,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:31,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:38:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:31,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-20 05:38:31,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:31,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:38:31,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:31,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:38:31,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:31,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:38:31,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:31,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-20 05:38:31,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:31,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:38:31,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:31,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:38:31,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:31,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:38:31,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:31,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-20 05:38:31,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:31,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:38:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:31,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:38:31,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:31,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:38:31,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:31,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-20 05:38:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:32,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:38:32,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:32,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:38:32,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:32,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-20 05:38:32,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:32,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-20 05:38:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:32,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-20 05:38:32,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:32,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-20 05:38:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:32,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-20 05:38:32,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:32,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 05:38:32,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:32,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-20 05:38:32,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:32,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:38:32,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:32,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:38:32,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:32,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-20 05:38:32,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:32,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-20 05:38:32,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:32,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-11-20 05:38:32,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:32,634 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2021-11-20 05:38:32,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:38:32,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130356834] [2021-11-20 05:38:32,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130356834] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:38:32,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:38:32,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 05:38:32,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110618128] [2021-11-20 05:38:32,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:38:32,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 05:38:32,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:38:32,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 05:38:32,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2021-11-20 05:38:32,637 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) [2021-11-20 05:38:34,873 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:38:36,885 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:38:46,964 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:38:48,998 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:38:52,121 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:38:58,265 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:39:14,560 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:39:15,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:39:15,769 INFO L93 Difference]: Finished difference Result 10993 states and 15630 transitions. [2021-11-20 05:39:15,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 05:39:15,769 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 [2021-11-20 05:39:15,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:39:15,801 INFO L225 Difference]: With dead ends: 10993 [2021-11-20 05:39:15,801 INFO L226 Difference]: Without dead ends: 6041 [2021-11-20 05:39:15,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2021-11-20 05:39:15,820 INFO L933 BasicCegarLoop]: 3823 mSDtfsCounter, 2201 mSDsluCounter, 31256 mSDsCounter, 0 mSdLazyCounter, 11979 mSolverCounterSat, 1653 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2334 SdHoareTripleChecker+Valid, 35079 SdHoareTripleChecker+Invalid, 13638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1653 IncrementalHoareTripleChecker+Valid, 11979 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:39:15,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2334 Valid, 35079 Invalid, 13638 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1653 Valid, 11979 Invalid, 6 Unknown, 0 Unchecked, 42.1s Time] [2021-11-20 05:39:15,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6041 states. [2021-11-20 05:39:16,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6041 to 5002. [2021-11-20 05:39:16,016 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) [2021-11-20 05:39:16,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5002 states to 5002 states and 7023 transitions. [2021-11-20 05:39:16,033 INFO L78 Accepts]: Start accepts. Automaton has 5002 states and 7023 transitions. Word has length 270 [2021-11-20 05:39:16,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:39:16,033 INFO L470 AbstractCegarLoop]: Abstraction has 5002 states and 7023 transitions. [2021-11-20 05:39:16,034 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) [2021-11-20 05:39:16,034 INFO L276 IsEmpty]: Start isEmpty. Operand 5002 states and 7023 transitions. [2021-11-20 05:39:16,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2021-11-20 05:39:16,043 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:39:16,044 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] [2021-11-20 05:39:16,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 05:39:16,044 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)] === [2021-11-20 05:39:16,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:39:16,045 INFO L85 PathProgramCache]: Analyzing trace with hash -424561556, now seen corresponding path program 1 times [2021-11-20 05:39:16,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:39:16,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84815335] [2021-11-20 05:39:16,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:39:16,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:39:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 05:39:16,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:39:16,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:39:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 05:39:16,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-20 05:39:16,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 05:39:16,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-20 05:39:16,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:39:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:39:16,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:39:16,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 05:39:16,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:39:16,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:39:16,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:39:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-20 05:39:16,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:39:16,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:39:16,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:39:16,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-20 05:39:16,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:39:16,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:39:16,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:39:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-20 05:39:16,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:39:16,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:39:16,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:39:16,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-20 05:39:16,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:39:16,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:39:16,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-20 05:39:16,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:39:16,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-20 05:39:16,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-20 05:39:16,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-20 05:39:16,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-11-20 05:39:16,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-20 05:39:16,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:16,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:39:16,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:17,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-20 05:39:17,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:17,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:39:17,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:17,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:39:17,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:17,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:39:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:17,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:39:17,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:17,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:39:17,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:17,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-20 05:39:17,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:17,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-11-20 05:39:17,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:17,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-11-20 05:39:17,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:17,237 INFO L134 CoverageAnalysis]: Checked inductivity of 575 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2021-11-20 05:39:17,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:39:17,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84815335] [2021-11-20 05:39:17,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84815335] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:39:17,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:39:17,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-20 05:39:17,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59686321] [2021-11-20 05:39:17,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:39:17,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-20 05:39:17,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:39:17,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-20 05:39:17,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-20 05:39:17,240 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) [2021-11-20 05:39:19,465 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:39:21,482 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:39:23,493 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:39:30,797 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:39:32,809 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:39:34,818 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:39:38,064 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:40:09,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:40:09,170 INFO L93 Difference]: Finished difference Result 9896 states and 14010 transitions. [2021-11-20 05:40:09,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 05:40:09,171 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 [2021-11-20 05:40:09,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:40:09,226 INFO L225 Difference]: With dead ends: 9896 [2021-11-20 05:40:09,226 INFO L226 Difference]: Without dead ends: 7187 [2021-11-20 05:40:09,250 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 [2021-11-20 05:40:09,251 INFO L933 BasicCegarLoop]: 4099 mSDtfsCounter, 3627 mSDsluCounter, 17361 mSDsCounter, 0 mSdLazyCounter, 9436 mSolverCounterSat, 1698 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3999 SdHoareTripleChecker+Valid, 21460 SdHoareTripleChecker+Invalid, 11141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1698 IncrementalHoareTripleChecker+Valid, 9436 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:40:09,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3999 Valid, 21460 Invalid, 11141 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1698 Valid, 9436 Invalid, 7 Unknown, 0 Unchecked, 51.1s Time] [2021-11-20 05:40:09,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7187 states. [2021-11-20 05:40:09,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7187 to 5008. [2021-11-20 05:40:09,469 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) [2021-11-20 05:40:09,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5008 states to 5008 states and 7029 transitions. [2021-11-20 05:40:09,487 INFO L78 Accepts]: Start accepts. Automaton has 5008 states and 7029 transitions. Word has length 295 [2021-11-20 05:40:09,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:40:09,487 INFO L470 AbstractCegarLoop]: Abstraction has 5008 states and 7029 transitions. [2021-11-20 05:40:09,488 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) [2021-11-20 05:40:09,488 INFO L276 IsEmpty]: Start isEmpty. Operand 5008 states and 7029 transitions. [2021-11-20 05:40:09,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2021-11-20 05:40:09,498 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:40:09,500 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] [2021-11-20 05:40:09,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 05:40:09,500 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)] === [2021-11-20 05:40:09,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:40:09,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1913747416, now seen corresponding path program 1 times [2021-11-20 05:40:09,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:40:09,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316319572] [2021-11-20 05:40:09,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:40:09,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:40:09,756 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:40:09,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1123696383] [2021-11-20 05:40:09,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:40:09,757 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:40:09,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fa0e4b1-c026-44c4-a1bb-04446a923275/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:40:09,759 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fa0e4b1-c026-44c4-a1bb-04446a923275/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:40:09,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fa0e4b1-c026-44c4-a1bb-04446a923275/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 05:40:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:40:12,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 11318 conjuncts, 242 conjunts are in the unsatisfiable core [2021-11-20 05:40:12,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:40:13,011 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 [2021-11-20 05:40:13,023 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 [2021-11-20 05:40:13,461 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 30 treesize of output 18 [2021-11-20 05:40:13,468 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 15 treesize of output 9 [2021-11-20 05:40:14,090 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 23 treesize of output 19 [2021-11-20 05:40:14,113 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 [2021-11-20 05:40:15,141 INFO L354 Elim1Store]: treesize reduction 82, result has 17.2 percent of original size [2021-11-20 05:40:15,141 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 34 treesize of output 22 [2021-11-20 05:40:15,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:40:15,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:40:15,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:40:15,169 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 46 treesize of output 30 [2021-11-20 05:40:15,252 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-11-20 05:40:15,252 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 41 treesize of output 21 [2021-11-20 05:40:15,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:40:15,277 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 29 treesize of output 13 [2021-11-20 05:40:16,472 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-11-20 05:40:16,473 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 29 treesize of output 13 [2021-11-20 05:40:16,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:40:16,489 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 41 treesize of output 21 [2021-11-20 05:40:16,808 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-11-20 05:40:16,808 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 41 treesize of output 21 [2021-11-20 05:40:16,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:40:16,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2021-11-20 05:40:17,702 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 45 treesize of output 33 [2021-11-20 05:40:17,711 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 30 treesize of output 22 [2021-11-20 05:40:17,943 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 145 proven. 26 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2021-11-20 05:40:17,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:40:23,346 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2021-11-20 05:40:23,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:40:23,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316319572] [2021-11-20 05:40:23,347 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:40:23,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123696383] [2021-11-20 05:40:23,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123696383] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-20 05:40:23,347 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:40:23,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [24] total 35 [2021-11-20 05:40:23,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033478054] [2021-11-20 05:40:23,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:40:23,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 05:40:23,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:40:23,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 05:40:23,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=1098, Unknown=0, NotChecked=0, Total=1190 [2021-11-20 05:40:23,350 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) [2021-11-20 05:40:25,650 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:40:27,665 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:40:29,683 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:40:31,702 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:40:33,717 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:40:35,730 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:40:37,748 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:40:54,700 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:40:56,750 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:40:58,759 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:41:00,795 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:41:02,804 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:41:04,879 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:41:06,945 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:41:12,019 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:41:31,055 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:41:33,126 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:41:35,138 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:41:53,567 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:42:09,787 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 05:42:11,943 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 05:42:32,824 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:42:37,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:42:37,858 INFO L93 Difference]: Finished difference Result 6615 states and 9283 transitions. [2021-11-20 05:42:37,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-20 05:42:37,861 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 [2021-11-20 05:42:37,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:42:37,885 INFO L225 Difference]: With dead ends: 6615 [2021-11-20 05:42:37,885 INFO L226 Difference]: Without dead ends: 5646 [2021-11-20 05:42:37,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 591 GetRequests, 538 SyntacticMatches, 10 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=160, Invalid=1820, Unknown=0, NotChecked=0, Total=1980 [2021-11-20 05:42:37,894 INFO L933 BasicCegarLoop]: 5178 mSDtfsCounter, 6033 mSDsluCounter, 38267 mSDsCounter, 0 mSdLazyCounter, 16221 mSolverCounterSat, 2295 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 117.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6033 SdHoareTripleChecker+Valid, 43445 SdHoareTripleChecker+Invalid, 18536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 2295 IncrementalHoareTripleChecker+Valid, 16221 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 131.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:42:37,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6033 Valid, 43445 Invalid, 18536 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [2295 Valid, 16221 Invalid, 20 Unknown, 0 Unchecked, 131.4s Time] [2021-11-20 05:42:37,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5646 states. [2021-11-20 05:42:38,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5646 to 5254. [2021-11-20 05:42:38,222 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) [2021-11-20 05:42:38,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5254 states to 5254 states and 7399 transitions. [2021-11-20 05:42:38,244 INFO L78 Accepts]: Start accepts. Automaton has 5254 states and 7399 transitions. Word has length 291 [2021-11-20 05:42:38,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:42:38,246 INFO L470 AbstractCegarLoop]: Abstraction has 5254 states and 7399 transitions. [2021-11-20 05:42:38,246 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) [2021-11-20 05:42:38,247 INFO L276 IsEmpty]: Start isEmpty. Operand 5254 states and 7399 transitions. [2021-11-20 05:42:38,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2021-11-20 05:42:38,260 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:42:38,260 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] [2021-11-20 05:42:38,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fa0e4b1-c026-44c4-a1bb-04446a923275/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 05:42:38,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fa0e4b1-c026-44c4-a1bb-04446a923275/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:42:38,482 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)] === [2021-11-20 05:42:38,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:42:38,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1688621126, now seen corresponding path program 1 times [2021-11-20 05:42:38,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:42:38,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968306659] [2021-11-20 05:42:38,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:42:38,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:42:38,798 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:42:38,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1216203499] [2021-11-20 05:42:38,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:42:38,799 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:42:38,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fa0e4b1-c026-44c4-a1bb-04446a923275/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:42:38,800 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fa0e4b1-c026-44c4-a1bb-04446a923275/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:42:38,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fa0e4b1-c026-44c4-a1bb-04446a923275/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 05:42:41,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:41,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 11331 conjuncts, 221 conjunts are in the unsatisfiable core [2021-11-20 05:42:41,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:42:42,198 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 [2021-11-20 05:42:42,477 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 [2021-11-20 05:42:43,180 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 [2021-11-20 05:42:43,193 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 23 treesize of output 19 [2021-11-20 05:42:44,114 INFO L354 Elim1Store]: treesize reduction 82, result has 17.2 percent of original size [2021-11-20 05:42:44,114 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 46 treesize of output 30 [2021-11-20 05:42:44,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:44,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:44,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:44,145 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 34 treesize of output 22 [2021-11-20 05:42:44,211 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-11-20 05:42:44,211 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 29 treesize of output 13 [2021-11-20 05:42:44,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:44,226 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 41 treesize of output 21 [2021-11-20 05:42:44,503 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-11-20 05:42:44,503 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 35 treesize of output 30 [2021-11-20 05:42:44,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:44,525 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 25 treesize of output 24 [2021-11-20 05:42:45,150 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-11-20 05:42:45,151 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 77 treesize of output 61 [2021-11-20 05:42:45,189 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-11-20 05:42:45,189 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 56 treesize of output 36 [2021-11-20 05:42:45,311 INFO L354 Elim1Store]: treesize reduction 82, result has 17.2 percent of original size [2021-11-20 05:42:45,312 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 34 treesize of output 22 [2021-11-20 05:42:45,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:45,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:45,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:45,343 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 46 treesize of output 30 [2021-11-20 05:42:45,968 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-11-20 05:42:45,968 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 41 treesize of output 21 [2021-11-20 05:42:45,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:45,987 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 29 treesize of output 13 [2021-11-20 05:42:46,248 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-11-20 05:42:46,249 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 41 treesize of output 21 [2021-11-20 05:42:46,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:46,264 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 29 treesize of output 13 [2021-11-20 05:42:47,062 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 45 treesize of output 33 [2021-11-20 05:42:47,072 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 30 treesize of output 22 [2021-11-20 05:42:47,264 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 145 proven. 26 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2021-11-20 05:42:47,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:42:56,268 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_#Ultimate.C_strcpy_#t~offset3371#1_6| Int) (v_DerPreprocessor_28 Int) (v_DerPreprocessor_27 Int) (|v_ULTIMATE.start_#Ultimate.C_strcpy_dest#1.offset_4| Int)) (or (< |v_ULTIMATE.start_#Ultimate.C_strcpy_dest#1.offset_4| (+ 2044 |c_ULTIMATE.start_uvc_probe_~dev~1#1.offset|)) (= (mod (let ((.cse0 (+ |v_ULTIMATE.start_#Ultimate.C_strcpy_#t~offset3371#1_6| |v_ULTIMATE.start_#Ultimate.C_strcpy_dest#1.offset_4|))) (+ (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_uvc_probe_~dev~1#1.base|) .cse0 v_DerPreprocessor_27) |c_ULTIMATE.start_uvc_probe_~dev~1#1.offset|) (select (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_uvc_probe_~dev~1#1.base|) .cse0 v_DerPreprocessor_28) |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 [2021-11-20 05:42:56,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:42:56,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968306659] [2021-11-20 05:42:56,630 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:42:56,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216203499] [2021-11-20 05:42:56,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216203499] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:42:56,630 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:42:56,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2021-11-20 05:42:56,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268600057] [2021-11-20 05:42:56,631 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-20 05:42:56,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-20 05:42:56,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:42:56,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-20 05:42:56,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=969, Unknown=2, NotChecked=62, Total=1122 [2021-11-20 05:42:56,634 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) [2021-11-20 05:42:58,823 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:43:00,847 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:43:02,877 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:43:04,897 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:43:06,914 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:43:23,555 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:43:29,848 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:44:08,921 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:44:10,559 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:44:41,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:44:41,547 INFO L93 Difference]: Finished difference Result 8150 states and 11607 transitions. [2021-11-20 05:44:41,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-20 05:44:41,548 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 [2021-11-20 05:44:41,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:44:41,587 INFO L225 Difference]: With dead ends: 8150 [2021-11-20 05:44:41,587 INFO L226 Difference]: Without dead ends: 7109 [2021-11-20 05:44:41,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 289 SyntacticMatches, 11 SemanticMatches, 52 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 544 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=269, Invalid=2489, Unknown=2, NotChecked=102, Total=2862 [2021-11-20 05:44:41,599 INFO L933 BasicCegarLoop]: 4882 mSDtfsCounter, 7823 mSDsluCounter, 62617 mSDsCounter, 0 mSdLazyCounter, 19797 mSolverCounterSat, 4088 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 91.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7992 SdHoareTripleChecker+Valid, 67499 SdHoareTripleChecker+Invalid, 28577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 4088 IncrementalHoareTripleChecker+Valid, 19797 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 4685 IncrementalHoareTripleChecker+Unchecked, 101.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:44:41,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7992 Valid, 67499 Invalid, 28577 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [4088 Valid, 19797 Invalid, 7 Unknown, 4685 Unchecked, 101.2s Time] [2021-11-20 05:44:41,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7109 states. [2021-11-20 05:44:41,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7109 to 5634. [2021-11-20 05:44:41,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5634 states, 4294 states have (on average 1.3621332091290173) internal successors, (5849), 4357 states have internal predecessors, (5849), 1044 states have call successors, (1044), 286 states have call predecessors, (1044), 292 states have return successors, (1091), 1027 states have call predecessors, (1091), 1040 states have call successors, (1091) [2021-11-20 05:44:42,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5634 states to 5634 states and 7984 transitions. [2021-11-20 05:44:42,014 INFO L78 Accepts]: Start accepts. Automaton has 5634 states and 7984 transitions. Word has length 296 [2021-11-20 05:44:42,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:44:42,015 INFO L470 AbstractCegarLoop]: Abstraction has 5634 states and 7984 transitions. [2021-11-20 05:44:42,015 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) [2021-11-20 05:44:42,016 INFO L276 IsEmpty]: Start isEmpty. Operand 5634 states and 7984 transitions. [2021-11-20 05:44:42,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2021-11-20 05:44:42,032 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:44:42,033 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] [2021-11-20 05:44:42,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fa0e4b1-c026-44c4-a1bb-04446a923275/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 05:44:42,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fa0e4b1-c026-44c4-a1bb-04446a923275/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-20 05:44:42,249 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)] === [2021-11-20 05:44:42,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:44:42,249 INFO L85 PathProgramCache]: Analyzing trace with hash 96294635, now seen corresponding path program 1 times [2021-11-20 05:44:42,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:44:42,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453108930] [2021-11-20 05:44:42,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:44:42,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:44:42,498 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:44:42,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [557127724] [2021-11-20 05:44:42,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:44:42,499 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:44:42,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fa0e4b1-c026-44c4-a1bb-04446a923275/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:44:42,500 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fa0e4b1-c026-44c4-a1bb-04446a923275/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:44:42,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fa0e4b1-c026-44c4-a1bb-04446a923275/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 05:44:44,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:44:45,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 11290 conjuncts, 105 conjunts are in the unsatisfiable core [2021-11-20 05:44:45,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:44:45,481 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 [2021-11-20 05:44:47,567 WARN L860 $PredicateComparison]: unable to prove that (exists ((atomic_set_~i Int) (atomic_set_~v.offset Int)) (and (<= atomic_set_~v.offset |c_atomic_set_#in~v.offset|) (= |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 atomic_set_~i))))) is different from true [2021-11-20 05:44:47,635 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-11-20 05:44:47,635 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 26 treesize of output 25 [2021-11-20 05:44:47,764 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-20 05:44:47,764 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 25 treesize of output 13 [2021-11-20 05:44:47,924 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 135 treesize of output 129 [2021-11-20 05:44:47,931 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 203 treesize of output 191 [2021-11-20 05:44:51,867 INFO L354 Elim1Store]: treesize reduction 1764, result has 27.9 percent of original size [2021-11-20 05:44:51,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 40 case distinctions, treesize of input 376 treesize of output 947