./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a941030a-7997-4845-bb0c-5794d615dad5/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a941030a-7997-4845-bb0c-5794d615dad5/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a941030a-7997-4845-bb0c-5794d615dad5/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a941030a-7997-4845-bb0c-5794d615dad5/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a941030a-7997-4845-bb0c-5794d615dad5/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a941030a-7997-4845-bb0c-5794d615dad5/bin/utaipan-7li7fVZpFI --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a521111bd175d3310336dcb5a96ef10ad6928036ed2148cdf12f5390a99f6bb7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 04:06:57,995 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 04:06:57,999 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 04:06:58,059 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 04:06:58,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 04:06:58,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 04:06:58,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 04:06:58,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 04:06:58,072 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 04:06:58,078 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 04:06:58,079 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 04:06:58,082 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 04:06:58,083 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 04:06:58,085 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 04:06:58,087 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 04:06:58,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 04:06:58,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 04:06:58,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 04:06:58,094 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 04:06:58,102 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 04:06:58,104 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 04:06:58,105 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 04:06:58,109 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 04:06:58,110 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 04:06:58,120 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 04:06:58,121 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 04:06:58,121 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 04:06:58,123 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 04:06:58,125 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 04:06:58,126 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 04:06:58,127 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 04:06:58,128 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 04:06:58,130 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 04:06:58,132 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 04:06:58,134 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 04:06:58,134 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 04:06:58,135 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 04:06:58,135 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 04:06:58,135 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 04:06:58,136 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 04:06:58,137 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 04:06:58,138 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a941030a-7997-4845-bb0c-5794d615dad5/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 04:06:58,166 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 04:06:58,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 04:06:58,167 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 04:06:58,167 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 04:06:58,168 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 04:06:58,168 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 04:06:58,168 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 04:06:58,169 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 04:06:58,169 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 04:06:58,169 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 04:06:58,169 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 04:06:58,169 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 04:06:58,170 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 04:06:58,170 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 04:06:58,170 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 04:06:58,171 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 04:06:58,171 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 04:06:58,171 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 04:06:58,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 04:06:58,180 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 04:06:58,180 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 04:06:58,181 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 04:06:58,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 04:06:58,181 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 04:06:58,181 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 04:06:58,182 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 04:06:58,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 04:06:58,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 04:06:58,183 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 04:06:58,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:06:58,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 04:06:58,184 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 04:06:58,184 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 04:06:58,184 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 04:06:58,185 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 04:06:58,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 04:06:58,185 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 04:06:58,185 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 04:06:58,186 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_a941030a-7997-4845-bb0c-5794d615dad5/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a941030a-7997-4845-bb0c-5794d615dad5/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a521111bd175d3310336dcb5a96ef10ad6928036ed2148cdf12f5390a99f6bb7 [2022-11-03 04:06:58,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:06:58,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:06:58,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:06:58,583 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:06:58,584 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:06:58,585 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a941030a-7997-4845-bb0c-5794d615dad5/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i [2022-11-03 04:06:58,666 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a941030a-7997-4845-bb0c-5794d615dad5/bin/utaipan-7li7fVZpFI/data/18e8243c2/693409f5617b42628ef11633cbcc72f5/FLAG786a1ff47 [2022-11-03 04:06:59,877 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:06:59,879 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a941030a-7997-4845-bb0c-5794d615dad5/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i [2022-11-03 04:06:59,957 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a941030a-7997-4845-bb0c-5794d615dad5/bin/utaipan-7li7fVZpFI/data/18e8243c2/693409f5617b42628ef11633cbcc72f5/FLAG786a1ff47 [2022-11-03 04:07:00,025 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a941030a-7997-4845-bb0c-5794d615dad5/bin/utaipan-7li7fVZpFI/data/18e8243c2/693409f5617b42628ef11633cbcc72f5 [2022-11-03 04:07:00,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:07:00,030 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:07:00,034 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:07:00,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:07:00,038 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:07:00,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:07:00" (1/1) ... [2022-11-03 04:07:00,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@372ba150 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:00, skipping insertion in model container [2022-11-03 04:07:00,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:07:00" (1/1) ... [2022-11-03 04:07:00,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:07:00,313 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:07:06,716 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_a941030a-7997-4845-bb0c-5794d615dad5/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[599511,599524] [2022-11-03 04:07:06,719 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_a941030a-7997-4845-bb0c-5794d615dad5/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[599658,599671] [2022-11-03 04:07:06,720 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_a941030a-7997-4845-bb0c-5794d615dad5/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[599797,599810] [2022-11-03 04:07:06,721 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_a941030a-7997-4845-bb0c-5794d615dad5/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[599955,599968] [2022-11-03 04:07:06,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:07:06,857 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:07:07,841 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_a941030a-7997-4845-bb0c-5794d615dad5/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[599511,599524] [2022-11-03 04:07:07,841 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_a941030a-7997-4845-bb0c-5794d615dad5/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[599658,599671] [2022-11-03 04:07:07,842 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_a941030a-7997-4845-bb0c-5794d615dad5/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[599797,599810] [2022-11-03 04:07:07,842 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_a941030a-7997-4845-bb0c-5794d615dad5/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[599955,599968] [2022-11-03 04:07:07,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:07:08,126 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:07:08,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:08 WrapperNode [2022-11-03 04:07:08,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:07:08,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:07:08,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:07:08,129 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:07:08,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:08" (1/1) ... [2022-11-03 04:07:08,388 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:08" (1/1) ... [2022-11-03 04:07:09,057 INFO L138 Inliner]: procedures = 547, calls = 8792, calls flagged for inlining = 309, calls inlined = 249, statements flattened = 13527 [2022-11-03 04:07:09,058 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:07:09,060 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:07:09,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:07:09,061 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:07:09,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:08" (1/1) ... [2022-11-03 04:07:09,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:08" (1/1) ... [2022-11-03 04:07:09,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:08" (1/1) ... [2022-11-03 04:07:09,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:08" (1/1) ... [2022-11-03 04:07:09,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:08" (1/1) ... [2022-11-03 04:07:09,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:08" (1/1) ... [2022-11-03 04:07:09,836 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:08" (1/1) ... [2022-11-03 04:07:09,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:08" (1/1) ... [2022-11-03 04:07:09,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:07:09,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:07:09,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:07:09,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:07:09,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:08" (1/1) ... [2022-11-03 04:07:09,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:07:09,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a941030a-7997-4845-bb0c-5794d615dad5/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:07:09,994 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a941030a-7997-4845-bb0c-5794d615dad5/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:07:10,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a941030a-7997-4845-bb0c-5794d615dad5/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:07:10,132 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-03 04:07:10,132 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-03 04:07:10,132 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-03 04:07:10,132 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-03 04:07:10,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 04:07:10,133 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 04:07:10,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 04:07:10,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 04:07:10,133 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_read [2022-11-03 04:07:10,133 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_read [2022-11-03 04:07:10,133 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_release [2022-11-03 04:07:10,134 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_release [2022-11-03 04:07:10,134 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_find_control [2022-11-03 04:07:10,134 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_find_control [2022-11-03 04:07:10,134 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2022-11-03 04:07:10,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2022-11-03 04:07:10,134 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_ctrl_add_mapping [2022-11-03 04:07:10,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_ctrl_add_mapping [2022-11-03 04:07:10,135 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_buffer_finish [2022-11-03 04:07:10,135 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_buffer_finish [2022-11-03 04:07:10,135 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-11-03 04:07:10,135 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-11-03 04:07:10,135 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2022-11-03 04:07:10,135 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_wait_prepare [2022-11-03 04:07:10,136 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_wait_prepare [2022-11-03 04:07:10,136 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_alloc_urb_buffers [2022-11-03 04:07:10,136 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_alloc_urb_buffers [2022-11-03 04:07:10,136 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_clock_reset [2022-11-03 04:07:10,137 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_clock_reset [2022-11-03 04:07:10,137 INFO L130 BoogieDeclarations]: Found specification of procedure usb_match_one_id [2022-11-03 04:07:10,137 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_match_one_id [2022-11-03 04:07:10,137 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 04:07:10,138 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 04:07:10,138 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-03 04:07:10,138 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get_ts [2022-11-03 04:07:10,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get_ts [2022-11-03 04:07:10,138 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_entity_by_id [2022-11-03 04:07:10,139 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_entity_by_id [2022-11-03 04:07:10,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 04:07:10,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 04:07:10,139 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-03 04:07:10,139 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-03 04:07:10,140 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 04:07:10,141 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 04:07:10,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 04:07:10,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 04:07:10,142 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 04:07:10,142 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 04:07:10,142 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2022-11-03 04:07:10,142 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2022-11-03 04:07:10,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 04:07:10,143 INFO L130 BoogieDeclarations]: Found specification of procedure __chk_range_not_ok [2022-11-03 04:07:10,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __chk_range_not_ok [2022-11-03 04:07:10,144 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_query_v4l2_ctrl [2022-11-03 04:07:10,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_query_v4l2_ctrl [2022-11-03 04:07:10,144 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_data [2022-11-03 04:07:10,144 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_data [2022-11-03 04:07:10,144 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-03 04:07:10,144 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-03 04:07:10,145 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2022-11-03 04:07:10,145 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2022-11-03 04:07:10,145 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_ioctl [2022-11-03 04:07:10,145 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_ioctl [2022-11-03 04:07:10,145 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 04:07:10,145 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 04:07:10,146 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_populate_cache [2022-11-03 04:07:10,146 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_populate_cache [2022-11-03 04:07:10,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 04:07:10,146 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_add_info [2022-11-03 04:07:10,147 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_add_info [2022-11-03 04:07:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 04:07:10,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 04:07:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_buffer_done [2022-11-03 04:07:10,148 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_buffer_done [2022-11-03 04:07:10,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 04:07:10,148 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_query_ctrl [2022-11-03 04:07:10,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_query_ctrl [2022-11-03 04:07:10,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 04:07:10,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 04:07:10,149 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_wait_finish [2022-11-03 04:07:10,150 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_wait_finish [2022-11-03 04:07:10,150 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_reset_resume [2022-11-03 04:07:10,151 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_reset_resume [2022-11-03 04:07:10,151 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2022-11-03 04:07:10,151 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2022-11-03 04:07:10,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 04:07:10,152 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2022-11-03 04:07:10,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2022-11-03 04:07:10,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 04:07:10,153 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 04:07:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 04:07:10,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 04:07:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-03 04:07:10,153 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-03 04:07:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 04:07:10,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 04:07:10,154 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_scan_chain_forward [2022-11-03 04:07:10,154 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_scan_chain_forward [2022-11-03 04:07:10,154 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2022-11-03 04:07:10,154 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2022-11-03 04:07:10,154 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_commit_video [2022-11-03 04:07:10,155 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_commit_video [2022-11-03 04:07:10,155 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2022-11-03 04:07:10,155 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-03 04:07:10,157 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-03 04:07:10,160 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64_rem [2022-11-03 04:07:10,160 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64_rem [2022-11-03 04:07:10,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 04:07:10,160 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2022-11-03 04:07:10,161 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2022-11-03 04:07:10,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 04:07:10,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 04:07:10,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-03 04:07:10,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-03 04:07:10,161 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_ctrl_get [2022-11-03 04:07:10,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_ctrl_get [2022-11-03 04:07:10,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 04:07:10,162 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_find_endpoint [2022-11-03 04:07:10,162 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_find_endpoint [2022-11-03 04:07:10,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 04:07:10,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 04:07:10,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 04:07:10,162 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 04:07:10,162 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_endpoint_max_bpi [2022-11-03 04:07:10,162 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_endpoint_max_bpi [2022-11-03 04:07:10,163 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 04:07:10,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 04:07:10,163 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_set_video_ctrl [2022-11-03 04:07:10,163 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_set_video_ctrl [2022-11-03 04:07:10,163 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-03 04:07:10,163 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-03 04:07:10,163 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_delete [2022-11-03 04:07:10,163 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_delete [2022-11-03 04:07:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_commit_entity [2022-11-03 04:07:10,164 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_commit_entity [2022-11-03 04:07:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_free_urb_buffers [2022-11-03 04:07:10,164 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_free_urb_buffers [2022-11-03 04:07:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_del_event [2022-11-03 04:07:10,164 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_del_event [2022-11-03 04:07:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user [2022-11-03 04:07:10,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user [2022-11-03 04:07:10,165 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_open [2022-11-03 04:07:10,165 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_open [2022-11-03 04:07:10,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:07:10,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:07:10,165 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-11-03 04:07:10,165 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-11-03 04:07:10,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 04:07:10,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 04:07:10,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 04:07:10,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 04:07:10,166 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2022-11-03 04:07:10,166 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2022-11-03 04:07:10,166 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_fill_event [2022-11-03 04:07:10,167 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_fill_event [2022-11-03 04:07:10,167 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-11-03 04:07:10,167 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-11-03 04:07:10,167 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_get_plane_payload [2022-11-03 04:07:10,167 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_get_plane_payload [2022-11-03 04:07:10,167 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2022-11-03 04:07:10,167 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2022-11-03 04:07:10,167 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-11-03 04:07:10,168 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-11-03 04:07:10,168 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2022-11-03 04:07:10,168 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2022-11-03 04:07:10,168 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-11-03 04:07:10,168 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-11-03 04:07:10,168 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_debugfs_cleanup [2022-11-03 04:07:10,168 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_debugfs_cleanup [2022-11-03 04:07:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2022-11-03 04:07:10,169 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2022-11-03 04:07:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 04:07:10,169 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 04:07:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_queue_fh [2022-11-03 04:07:10,169 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_queue_fh [2022-11-03 04:07:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_init_video [2022-11-03 04:07:10,169 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_init_video [2022-11-03 04:07:10,170 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_status_start [2022-11-03 04:07:10,170 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_status_start [2022-11-03 04:07:10,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 04:07:10,170 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 04:07:10,170 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_intf [2022-11-03 04:07:10,170 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_intf [2022-11-03 04:07:10,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_5_4 [2022-11-03 04:07:10,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_5_4 [2022-11-03 04:07:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR_OR_NULL [2022-11-03 04:07:10,171 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR_OR_NULL [2022-11-03 04:07:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_find_control [2022-11-03 04:07:10,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_find_control [2022-11-03 04:07:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_clock_cleanup [2022-11-03 04:07:10,171 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_clock_cleanup [2022-11-03 04:07:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-11-03 04:07:10,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-11-03 04:07:10,172 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-03 04:07:10,172 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-03 04:07:10,172 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64 [2022-11-03 04:07:10,172 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64 [2022-11-03 04:07:10,172 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_buffer_prepare [2022-11-03 04:07:10,172 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_buffer_prepare [2022-11-03 04:07:10,172 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-03 04:07:10,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-03 04:07:10,173 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_set_zoom [2022-11-03 04:07:10,173 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_set_zoom [2022-11-03 04:07:10,173 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_test_bit [2022-11-03 04:07:10,173 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_test_bit [2022-11-03 04:07:10,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 04:07:10,173 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 04:07:10,174 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 04:07:10,174 INFO L130 BoogieDeclarations]: Found specification of procedure copy_in_user [2022-11-03 04:07:10,174 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_in_user [2022-11-03 04:07:10,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 04:07:10,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_uvc_cleanup_10_2 [2022-11-03 04:07:10,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_uvc_cleanup_10_2 [2022-11-03 04:07:10,174 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_status_stop [2022-11-03 04:07:10,175 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_status_stop [2022-11-03 04:07:10,175 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_alloc_entity [2022-11-03 04:07:10,175 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_alloc_entity [2022-11-03 04:07:10,175 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2022-11-03 04:07:10,175 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2022-11-03 04:07:10,175 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_query_ctrl [2022-11-03 04:07:10,175 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_query_ctrl [2022-11-03 04:07:10,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 04:07:10,176 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-03 04:07:10,176 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-03 04:07:10,176 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-03 04:07:10,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-03 04:07:10,176 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 04:07:10,176 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 04:07:10,177 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 04:07:10,177 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 04:07:10,177 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_dismiss_privileges [2022-11-03 04:07:10,177 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_dismiss_privileges [2022-11-03 04:07:10,177 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-03 04:07:10,177 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-03 04:07:10,177 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-03 04:07:10,177 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-03 04:07:10,178 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~__u8~0~X~$Pointer$~TO~~__s32~0 [2022-11-03 04:07:10,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~__u8~0~X~$Pointer$~TO~~__s32~0 [2022-11-03 04:07:10,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 04:07:10,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 04:07:10,178 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_clock_host_sof [2022-11-03 04:07:10,178 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_clock_host_sof [2022-11-03 04:07:10,178 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-11-03 04:07:10,178 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-11-03 04:07:10,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 04:07:10,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 04:07:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-03 04:07:10,179 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-03 04:07:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure compat_alloc_user_space [2022-11-03 04:07:10,179 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_alloc_user_space [2022-11-03 04:07:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_plane_size [2022-11-03 04:07:10,179 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_plane_size [2022-11-03 04:07:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2022-11-03 04:07:10,179 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2022-11-03 04:07:10,180 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_print_terms [2022-11-03 04:07:10,180 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_print_terms [2022-11-03 04:07:10,180 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-03 04:07:10,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-03 04:07:10,180 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_has_privileges [2022-11-03 04:07:10,180 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_has_privileges [2022-11-03 04:07:10,180 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_enable [2022-11-03 04:07:10,180 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_enable [2022-11-03 04:07:10,180 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 04:07:10,180 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 04:07:10,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 04:07:10,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 04:07:10,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 04:07:10,181 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2022-11-03 04:07:10,181 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2022-11-03 04:07:10,181 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_init [2022-11-03 04:07:10,181 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_init [2022-11-03 04:07:10,181 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 04:07:10,181 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 04:07:10,182 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_entity_match_guid [2022-11-03 04:07:10,182 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_entity_match_guid [2022-11-03 04:07:10,182 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-03 04:07:10,182 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-03 04:07:10,182 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_uninit_video [2022-11-03 04:07:10,182 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_uninit_video [2022-11-03 04:07:10,182 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_debugfs_cleanup_stream [2022-11-03 04:07:10,182 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_debugfs_cleanup_stream [2022-11-03 04:07:10,182 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2022-11-03 04:07:10,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2022-11-03 04:07:10,183 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_queue_enable [2022-11-03 04:07:10,183 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_queue_enable [2022-11-03 04:07:10,183 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_get_video_ctrl [2022-11-03 04:07:10,183 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_get_video_ctrl [2022-11-03 04:07:10,183 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2022-11-03 04:07:10,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2022-11-03 04:07:10,183 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-11-03 04:07:10,184 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-11-03 04:07:10,184 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_get_drv_priv [2022-11-03 04:07:10,184 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_get_drv_priv [2022-11-03 04:07:10,184 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2022-11-03 04:07:10,184 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2022-11-03 04:07:10,184 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-03 04:07:10,184 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-03 04:07:10,185 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_buffer_queue [2022-11-03 04:07:10,185 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_buffer_queue [2022-11-03 04:07:10,185 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_resume [2022-11-03 04:07:10,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_resume [2022-11-03 04:07:10,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 04:07:10,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 04:07:10,185 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_unregister_video [2022-11-03 04:07:10,185 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_unregister_video [2022-11-03 04:07:10,186 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intf [2022-11-03 04:07:10,186 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intf [2022-11-03 04:07:10,186 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_resume [2022-11-03 04:07:10,186 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_resume [2022-11-03 04:07:10,186 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2022-11-03 04:07:10,186 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2022-11-03 04:07:10,186 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_cleanup [2022-11-03 04:07:10,186 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_cleanup [2022-11-03 04:07:10,187 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_queue_streaming [2022-11-03 04:07:10,187 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_queue_streaming [2022-11-03 04:07:10,187 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_disconnect [2022-11-03 04:07:10,187 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_disconnect [2022-11-03 04:07:10,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 04:07:10,187 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2022-11-03 04:07:10,187 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2022-11-03 04:07:10,188 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_get_zoom [2022-11-03 04:07:10,188 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_get_zoom [2022-11-03 04:07:10,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 04:07:10,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 04:07:11,888 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:07:11,895 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:07:12,168 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 04:07:12,707 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11774: assume 0 != __copy_to_user_nocheck_~tmp___0~26#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2022-11-03 04:07:12,707 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11774: assume !(0 != __copy_to_user_nocheck_~tmp___0~26#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2022-11-03 04:07:12,707 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11788: assume 0 != __copy_to_user_nocheck_~tmp___1~15#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2022-11-03 04:07:12,708 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11788: assume !(0 != __copy_to_user_nocheck_~tmp___1~15#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2022-11-03 04:07:12,708 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11747: assume 16 == __copy_to_user_nocheck_~size#1 % 4294967296; [2022-11-03 04:07:12,708 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11747: assume !(16 == __copy_to_user_nocheck_~size#1 % 4294967296); [2022-11-03 04:07:12,708 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11751: SUMMARY for call __copy_to_user_nocheck_#t~ret1088#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 [2022-11-03 04:07:12,709 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11772: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1086#1 && __copy_to_user_nocheck_#t~ret1086#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~26#1 := __copy_to_user_nocheck_#t~ret1086#1;havoc __copy_to_user_nocheck_#t~ret1086#1; [2022-11-03 04:07:12,709 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11739: assume 8 == __copy_to_user_nocheck_~size#1 % 4294967296; [2022-11-03 04:07:12,709 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11739: assume !(8 == __copy_to_user_nocheck_~size#1 % 4294967296); [2022-11-03 04:07:12,709 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11743: assume 10 == __copy_to_user_nocheck_~size#1 % 4294967296; [2022-11-03 04:07:12,709 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11743: assume !(10 == __copy_to_user_nocheck_~size#1 % 4294967296); [2022-11-03 04:07:12,710 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11731: assume 2 == __copy_to_user_nocheck_~size#1 % 4294967296; [2022-11-03 04:07:12,710 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11731: assume !(2 == __copy_to_user_nocheck_~size#1 % 4294967296); [2022-11-03 04:07:12,710 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11735: assume 4 == __copy_to_user_nocheck_~size#1 % 4294967296; [2022-11-03 04:07:12,710 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11735: assume !(4 == __copy_to_user_nocheck_~size#1 % 4294967296); [2022-11-03 04:07:12,710 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11748: SUMMARY for call __copy_to_user_nocheck_#t~ret1087#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~18#1 then 1 else 0), 0); srcloc: null [2022-11-03 04:07:12,710 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume 1 == __copy_to_user_nocheck_~size#1 % 4294967296; [2022-11-03 04:07:12,711 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !(1 == __copy_to_user_nocheck_~size#1 % 4294967296); [2022-11-03 04:07:12,711 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11740: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2022-11-03 04:07:12,711 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11744: SUMMARY for call __copy_to_user_nocheck_#t~ret1086#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~18#1 then 1 else 0), 0); srcloc: null [2022-11-03 04:07:12,711 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11732: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2022-11-03 04:07:12,711 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11736: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2022-11-03 04:07:12,712 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11798: __copy_to_user_nocheck_~tmp___2~11#1 := __copy_to_user_nocheck_#t~ret1088#1;havoc __copy_to_user_nocheck_#t~ret1088#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); [2022-11-03 04:07:12,712 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11786: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1087#1 && __copy_to_user_nocheck_#t~ret1087#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~15#1 := __copy_to_user_nocheck_#t~ret1087#1;havoc __copy_to_user_nocheck_#t~ret1087#1; [2022-11-03 04:07:12,712 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11728: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2022-11-03 04:07:16,524 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11642: SUMMARY for call __copy_from_user_nocheck_#t~ret1083#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 [2022-11-03 04:07:16,524 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11634: assume 10 == __copy_from_user_nocheck_~size#1 % 4294967296; [2022-11-03 04:07:16,524 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11634: assume !(10 == __copy_from_user_nocheck_~size#1 % 4294967296); [2022-11-03 04:07:16,525 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11638: assume 16 == __copy_from_user_nocheck_~size#1 % 4294967296; [2022-11-03 04:07:16,525 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11638: assume !(16 == __copy_from_user_nocheck_~size#1 % 4294967296); [2022-11-03 04:07:16,525 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11626: assume 4 == __copy_from_user_nocheck_~size#1 % 4294967296; [2022-11-03 04:07:16,525 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11626: assume !(4 == __copy_from_user_nocheck_~size#1 % 4294967296); [2022-11-03 04:07:16,525 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11630: assume 8 == __copy_from_user_nocheck_~size#1 % 4294967296; [2022-11-03 04:07:16,525 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11630: assume !(8 == __copy_from_user_nocheck_~size#1 % 4294967296); [2022-11-03 04:07:16,525 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11622: assume 2 == __copy_from_user_nocheck_~size#1 % 4294967296; [2022-11-03 04:07:16,525 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11622: assume !(2 == __copy_from_user_nocheck_~size#1 % 4294967296); [2022-11-03 04:07:16,526 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11668: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1081#1 && __copy_from_user_nocheck_#t~ret1081#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~25#1 := __copy_from_user_nocheck_#t~ret1081#1;havoc __copy_from_user_nocheck_#t~ret1081#1; [2022-11-03 04:07:16,526 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11635: SUMMARY for call __copy_from_user_nocheck_#t~ret1081#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~17#1 then 1 else 0), 0); srcloc: null [2022-11-03 04:07:16,526 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11639: SUMMARY for call __copy_from_user_nocheck_#t~ret1082#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~17#1 then 1 else 0), 0); srcloc: null [2022-11-03 04:07:16,526 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11627: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2022-11-03 04:07:16,526 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11631: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2022-11-03 04:07:16,526 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11685: assume 0 != __copy_from_user_nocheck_~tmp___1~14#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2022-11-03 04:07:16,526 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11685: assume !(0 != __copy_from_user_nocheck_~tmp___1~14#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2022-11-03 04:07:16,526 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11619: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2022-11-03 04:07:16,527 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11623: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2022-11-03 04:07:16,527 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume 1 == __copy_from_user_nocheck_~size#1 % 4294967296; [2022-11-03 04:07:16,527 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !(1 == __copy_from_user_nocheck_~size#1 % 4294967296); [2022-11-03 04:07:16,527 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11670: assume 0 != __copy_from_user_nocheck_~tmp___0~25#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2022-11-03 04:07:16,527 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11670: assume !(0 != __copy_from_user_nocheck_~tmp___0~25#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2022-11-03 04:07:16,527 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11695: __copy_from_user_nocheck_~tmp___2~10#1 := __copy_from_user_nocheck_#t~ret1083#1;havoc __copy_from_user_nocheck_#t~ret1083#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); [2022-11-03 04:07:16,527 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11683: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1082#1 && __copy_from_user_nocheck_#t~ret1082#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~14#1 := __copy_from_user_nocheck_#t~ret1082#1;havoc __copy_from_user_nocheck_#t~ret1082#1; [2022-11-03 04:11:08,431 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 04:11:08,591 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:11:13,584 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:11:13,584 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-03 04:11:13,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:11:13 BoogieIcfgContainer [2022-11-03 04:11:13,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:11:13,599 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:11:13,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:11:13,606 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:11:13,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:07:00" (1/3) ... [2022-11-03 04:11:13,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d80cebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:11:13, skipping insertion in model container [2022-11-03 04:11:13,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:08" (2/3) ... [2022-11-03 04:11:13,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d80cebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:11:13, skipping insertion in model container [2022-11-03 04:11:13,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:11:13" (3/3) ... [2022-11-03 04:11:13,610 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i [2022-11-03 04:11:13,634 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:11:13,635 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-03 04:11:13,781 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:11:13,793 INFO L357 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=FINITE_AUTOMATA, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@522b2900, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:11:13,793 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-03 04:11:13,808 INFO L276 IsEmpty]: Start isEmpty. Operand has 2300 states, 1495 states have (on average 1.3719063545150503) internal successors, (2051), 1516 states have internal predecessors, (2051), 650 states have call successors, (650), 152 states have call predecessors, (650), 151 states have return successors, (641), 635 states have call predecessors, (641), 641 states have call successors, (641) [2022-11-03 04:11:13,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2022-11-03 04:11:13,865 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:11:13,866 INFO L195 NwaCegarLoop]: trace histogram [32, 31, 31, 31, 31, 31, 31, 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] [2022-11-03 04:11:13,867 INFO L420 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)] === [2022-11-03 04:11:13,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:11:13,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1808094733, now seen corresponding path program 1 times [2022-11-03 04:11:13,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:11:13,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460198277] [2022-11-03 04:11:13,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:13,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:11:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:16,699 INFO L134 CoverageAnalysis]: Checked inductivity of 3785 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3785 trivial. 0 not checked. [2022-11-03 04:11:16,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:11:16,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460198277] [2022-11-03 04:11:16,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460198277] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:11:16,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:11:16,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:11:16,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052312972] [2022-11-03 04:11:16,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:11:16,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:11:16,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:11:16,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:11:16,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:11:16,762 INFO L87 Difference]: Start difference. First operand has 2300 states, 1495 states have (on average 1.3719063545150503) internal successors, (2051), 1516 states have internal predecessors, (2051), 650 states have call successors, (650), 152 states have call predecessors, (650), 151 states have return successors, (641), 635 states have call predecessors, (641), 641 states have call successors, (641) Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-03 04:11:19,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:11:22,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:11:27,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:11:33,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:11:33,012 INFO L93 Difference]: Finished difference Result 6602 states and 9617 transitions. [2022-11-03 04:11:33,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:11:33,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 339 [2022-11-03 04:11:33,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:11:33,097 INFO L225 Difference]: With dead ends: 6602 [2022-11-03 04:11:33,097 INFO L226 Difference]: Without dead ends: 4352 [2022-11-03 04:11:33,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:11:33,128 INFO L413 NwaCegarLoop]: 3482 mSDtfsCounter, 3035 mSDsluCounter, 3242 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 17 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3036 SdHoareTripleChecker+Valid, 6221 SdHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:11:33,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3036 Valid, 6221 Invalid, 1135 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 1115 Invalid, 3 Unknown, 0 Unchecked, 15.7s Time] [2022-11-03 04:11:33,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4352 states. [2022-11-03 04:11:33,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4352 to 4345. [2022-11-03 04:11:33,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4345 states, 2847 states have (on average 1.3681067790656831) internal successors, (3895), 2886 states have internal predecessors, (3895), 1201 states have call successors, (1201), 295 states have call predecessors, (1201), 293 states have return successors, (1198), 1185 states have call predecessors, (1198), 1198 states have call successors, (1198) [2022-11-03 04:11:33,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4345 states to 4345 states and 6294 transitions. [2022-11-03 04:11:33,576 INFO L78 Accepts]: Start accepts. Automaton has 4345 states and 6294 transitions. Word has length 339 [2022-11-03 04:11:33,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:11:33,583 INFO L495 AbstractCegarLoop]: Abstraction has 4345 states and 6294 transitions. [2022-11-03 04:11:33,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-03 04:11:33,583 INFO L276 IsEmpty]: Start isEmpty. Operand 4345 states and 6294 transitions. [2022-11-03 04:11:33,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2022-11-03 04:11:33,613 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:11:33,614 INFO L195 NwaCegarLoop]: trace histogram [33, 31, 31, 31, 31, 31, 31, 6, 6, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:11:33,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 04:11:33,614 INFO L420 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)] === [2022-11-03 04:11:33,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:11:33,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1842801618, now seen corresponding path program 1 times [2022-11-03 04:11:33,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:11:33,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861091816] [2022-11-03 04:11:33,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:33,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:11:34,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:35,475 INFO L134 CoverageAnalysis]: Checked inductivity of 3918 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3918 trivial. 0 not checked. [2022-11-03 04:11:35,477 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:11:35,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861091816] [2022-11-03 04:11:35,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861091816] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:11:35,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:11:35,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:11:35,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261910966] [2022-11-03 04:11:35,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:11:35,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:11:35,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:11:35,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:11:35,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:11:35,489 INFO L87 Difference]: Start difference. First operand 4345 states and 6294 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-03 04:11:37,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:11:40,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:11:42,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:11:45,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:11:48,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:11:51,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:11:53,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:11:53,523 INFO L93 Difference]: Finished difference Result 10993 states and 15808 transitions. [2022-11-03 04:11:53,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:11:53,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 402 [2022-11-03 04:11:53,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:11:53,580 INFO L225 Difference]: With dead ends: 10993 [2022-11-03 04:11:53,580 INFO L226 Difference]: Without dead ends: 6711 [2022-11-03 04:11:53,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:11:53,603 INFO L413 NwaCegarLoop]: 3244 mSDtfsCounter, 1691 mSDsluCounter, 3267 mSDsCounter, 0 mSdLazyCounter, 1107 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1691 SdHoareTripleChecker+Valid, 6000 SdHoareTripleChecker+Invalid, 1125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1107 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:11:53,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1691 Valid, 6000 Invalid, 1125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1107 Invalid, 2 Unknown, 0 Unchecked, 17.6s Time] [2022-11-03 04:11:53,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6711 states. [2022-11-03 04:11:53,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6711 to 6700. [2022-11-03 04:11:53,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6700 states, 4331 states have (on average 1.3500346340337104) internal successors, (5847), 4387 states have internal predecessors, (5847), 1866 states have call successors, (1866), 502 states have call predecessors, (1866), 499 states have return successors, (1863), 1840 states have call predecessors, (1863), 1863 states have call successors, (1863) [2022-11-03 04:11:54,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6700 states to 6700 states and 9576 transitions. [2022-11-03 04:11:54,024 INFO L78 Accepts]: Start accepts. Automaton has 6700 states and 9576 transitions. Word has length 402 [2022-11-03 04:11:54,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:11:54,031 INFO L495 AbstractCegarLoop]: Abstraction has 6700 states and 9576 transitions. [2022-11-03 04:11:54,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-03 04:11:54,033 INFO L276 IsEmpty]: Start isEmpty. Operand 6700 states and 9576 transitions. [2022-11-03 04:11:54,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2022-11-03 04:11:54,055 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:11:54,064 INFO L195 NwaCegarLoop]: trace histogram [34, 31, 31, 31, 31, 31, 31, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2022-11-03 04:11:54,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 04:11:54,065 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION, uvc_deleteErr1ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 04:11:54,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:11:54,077 INFO L85 PathProgramCache]: Analyzing trace with hash -424521088, now seen corresponding path program 1 times [2022-11-03 04:11:54,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:11:54,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783433324] [2022-11-03 04:11:54,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:54,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:11:54,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:55,818 INFO L134 CoverageAnalysis]: Checked inductivity of 4011 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4002 trivial. 0 not checked. [2022-11-03 04:11:55,819 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:11:55,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783433324] [2022-11-03 04:11:55,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783433324] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:11:55,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:11:55,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:11:55,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657180719] [2022-11-03 04:11:55,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:11:55,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:11:55,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:11:55,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:11:55,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:11:55,824 INFO L87 Difference]: Start difference. First operand 6700 states and 9576 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2022-11-03 04:11:58,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:00,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:03,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:12:09,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:12,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:12,617 INFO L93 Difference]: Finished difference Result 12546 states and 17830 transitions. [2022-11-03 04:12:12,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:12:12,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 422 [2022-11-03 04:12:12,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:12,658 INFO L225 Difference]: With dead ends: 12546 [2022-11-03 04:12:12,658 INFO L226 Difference]: Without dead ends: 5909 [2022-11-03 04:12:12,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:12:12,688 INFO L413 NwaCegarLoop]: 3181 mSDtfsCounter, 1692 mSDsluCounter, 3288 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1692 SdHoareTripleChecker+Valid, 5953 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:12,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1692 Valid, 5953 Invalid, 1071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1065 Invalid, 3 Unknown, 0 Unchecked, 16.4s Time] [2022-11-03 04:12:12,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5909 states. [2022-11-03 04:12:13,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5909 to 5902. [2022-11-03 04:12:13,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5902 states, 3760 states have (on average 1.3337765957446808) internal successors, (5015), 3807 states have internal predecessors, (5015), 1663 states have call successors, (1663), 478 states have call predecessors, (1663), 475 states have return successors, (1660), 1640 states have call predecessors, (1660), 1660 states have call successors, (1660) [2022-11-03 04:12:13,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5902 states to 5902 states and 8338 transitions. [2022-11-03 04:12:13,097 INFO L78 Accepts]: Start accepts. Automaton has 5902 states and 8338 transitions. Word has length 422 [2022-11-03 04:12:13,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:13,098 INFO L495 AbstractCegarLoop]: Abstraction has 5902 states and 8338 transitions. [2022-11-03 04:12:13,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2022-11-03 04:12:13,100 INFO L276 IsEmpty]: Start isEmpty. Operand 5902 states and 8338 transitions. [2022-11-03 04:12:13,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2022-11-03 04:12:13,118 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:13,119 INFO L195 NwaCegarLoop]: trace histogram [36, 32, 32, 32, 32, 32, 32, 5, 5, 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, 1] [2022-11-03 04:12:13,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 04:12:13,120 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION, uvc_deleteErr1ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 04:12:13,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:13,121 INFO L85 PathProgramCache]: Analyzing trace with hash -10642394, now seen corresponding path program 1 times [2022-11-03 04:12:13,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:12:13,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799933939] [2022-11-03 04:12:13,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:13,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:12:13,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:15,797 INFO L134 CoverageAnalysis]: Checked inductivity of 4270 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4270 trivial. 0 not checked. [2022-11-03 04:12:15,798 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:12:15,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799933939] [2022-11-03 04:12:15,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799933939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:12:15,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:12:15,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:12:15,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521159249] [2022-11-03 04:12:15,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:12:15,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:12:15,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:12:15,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:12:15,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:12:15,803 INFO L87 Difference]: Start difference. First operand 5902 states and 8338 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-11-03 04:12:18,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:21,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:12:24,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:27,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:30,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:39,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:39,050 INFO L93 Difference]: Finished difference Result 9934 states and 13963 transitions. [2022-11-03 04:12:39,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:12:39,053 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 412 [2022-11-03 04:12:39,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:39,134 INFO L225 Difference]: With dead ends: 9934 [2022-11-03 04:12:39,135 INFO L226 Difference]: Without dead ends: 9886 [2022-11-03 04:12:39,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:12:39,157 INFO L413 NwaCegarLoop]: 3220 mSDtfsCounter, 2141 mSDsluCounter, 6944 mSDsCounter, 0 mSdLazyCounter, 1578 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2143 SdHoareTripleChecker+Valid, 9124 SdHoareTripleChecker+Invalid, 1583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1578 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:39,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2143 Valid, 9124 Invalid, 1583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1578 Invalid, 4 Unknown, 0 Unchecked, 22.8s Time] [2022-11-03 04:12:39,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9886 states. [2022-11-03 04:12:39,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9886 to 9877. [2022-11-03 04:12:39,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9877 states, 6252 states have (on average 1.3272552783109406) internal successors, (8298), 6324 states have internal predecessors, (8298), 2792 states have call successors, (2792), 832 states have call predecessors, (2792), 829 states have return successors, (2793), 2761 states have call predecessors, (2793), 2789 states have call successors, (2793) [2022-11-03 04:12:39,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9877 states to 9877 states and 13883 transitions. [2022-11-03 04:12:39,776 INFO L78 Accepts]: Start accepts. Automaton has 9877 states and 13883 transitions. Word has length 412 [2022-11-03 04:12:39,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:39,779 INFO L495 AbstractCegarLoop]: Abstraction has 9877 states and 13883 transitions. [2022-11-03 04:12:39,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-11-03 04:12:39,779 INFO L276 IsEmpty]: Start isEmpty. Operand 9877 states and 13883 transitions. [2022-11-03 04:12:39,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2022-11-03 04:12:39,812 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:39,812 INFO L195 NwaCegarLoop]: trace histogram [38, 32, 32, 32, 32, 32, 32, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:12:39,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 04:12:39,813 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION, uvc_deleteErr1ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 04:12:39,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:39,814 INFO L85 PathProgramCache]: Analyzing trace with hash -186816830, now seen corresponding path program 1 times [2022-11-03 04:12:39,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:12:39,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681333261] [2022-11-03 04:12:39,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:39,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:12:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:42,898 INFO L134 CoverageAnalysis]: Checked inductivity of 4589 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4589 trivial. 0 not checked. [2022-11-03 04:12:42,898 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:12:42,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681333261] [2022-11-03 04:12:42,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681333261] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:12:42,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:12:42,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:12:42,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719272367] [2022-11-03 04:12:42,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:12:42,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:12:42,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:12:42,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:12:42,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:12:42,902 INFO L87 Difference]: Start difference. First operand 9877 states and 13883 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-11-03 04:12:45,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:47,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:50,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:53,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:13:01,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:13:05,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:13:09,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:13:10,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:13:10,107 INFO L93 Difference]: Finished difference Result 13528 states and 19755 transitions. [2022-11-03 04:13:10,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:13:10,108 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 501 [2022-11-03 04:13:10,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:13:10,179 INFO L225 Difference]: With dead ends: 13528 [2022-11-03 04:13:10,180 INFO L226 Difference]: Without dead ends: 13526 [2022-11-03 04:13:10,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:13:10,191 INFO L413 NwaCegarLoop]: 4776 mSDtfsCounter, 3762 mSDsluCounter, 8519 mSDsCounter, 0 mSdLazyCounter, 2271 mSolverCounterSat, 207 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4091 SdHoareTripleChecker+Valid, 12074 SdHoareTripleChecker+Invalid, 2480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 2271 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:13:10,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4091 Valid, 12074 Invalid, 2480 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [207 Valid, 2271 Invalid, 2 Unknown, 0 Unchecked, 26.5s Time] [2022-11-03 04:13:10,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13526 states. [2022-11-03 04:13:10,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13526 to 9928. [2022-11-03 04:13:10,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9928 states, 6279 states have (on average 1.3261665870361523) internal successors, (8327), 6354 states have internal predecessors, (8327), 2807 states have call successors, (2807), 841 states have call predecessors, (2807), 838 states have return successors, (2804), 2773 states have call predecessors, (2804), 2804 states have call successors, (2804) [2022-11-03 04:13:11,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9928 states to 9928 states and 13938 transitions. [2022-11-03 04:13:11,016 INFO L78 Accepts]: Start accepts. Automaton has 9928 states and 13938 transitions. Word has length 501 [2022-11-03 04:13:11,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:13:11,018 INFO L495 AbstractCegarLoop]: Abstraction has 9928 states and 13938 transitions. [2022-11-03 04:13:11,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-11-03 04:13:11,018 INFO L276 IsEmpty]: Start isEmpty. Operand 9928 states and 13938 transitions. [2022-11-03 04:13:11,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2022-11-03 04:13:11,049 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:13:11,049 INFO L195 NwaCegarLoop]: trace histogram [37, 32, 32, 32, 32, 32, 32, 7, 7, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:13:11,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 04:13:11,050 INFO L420 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)] === [2022-11-03 04:13:11,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:13:11,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1348092818, now seen corresponding path program 1 times [2022-11-03 04:13:11,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:13:11,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678871530] [2022-11-03 04:13:11,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:13:11,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:13:11,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:13:12,389 INFO L134 CoverageAnalysis]: Checked inductivity of 4386 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4374 trivial. 0 not checked. [2022-11-03 04:13:12,390 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:13:12,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678871530] [2022-11-03 04:13:12,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678871530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:13:12,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:13:12,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:13:12,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072731273] [2022-11-03 04:13:12,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:13:12,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:13:12,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:13:12,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:13:12,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:13:12,393 INFO L87 Difference]: Start difference. First operand 9928 states and 13938 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2022-11-03 04:13:14,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:13:17,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:13:20,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:13:22,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:13:25,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:13:27,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:13:34,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:13:34,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:13:34,234 INFO L93 Difference]: Finished difference Result 21588 states and 30334 transitions. [2022-11-03 04:13:34,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:13:34,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) Word has length 482 [2022-11-03 04:13:34,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:13:34,300 INFO L225 Difference]: With dead ends: 21588 [2022-11-03 04:13:34,301 INFO L226 Difference]: Without dead ends: 12842 [2022-11-03 04:13:34,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:13:34,343 INFO L413 NwaCegarLoop]: 4485 mSDtfsCounter, 2812 mSDsluCounter, 2783 mSDsCounter, 0 mSdLazyCounter, 1316 mSolverCounterSat, 10 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2815 SdHoareTripleChecker+Valid, 6846 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1316 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:13:34,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2815 Valid, 6846 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1316 Invalid, 4 Unknown, 0 Unchecked, 21.3s Time] [2022-11-03 04:13:34,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12842 states. [2022-11-03 04:13:35,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12842 to 12820. [2022-11-03 04:13:35,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12820 states, 8120 states have (on average 1.328448275862069) internal successors, (10787), 8219 states have internal predecessors, (10787), 3607 states have call successors, (3607), 1092 states have call predecessors, (3607), 1089 states have return successors, (3608), 3562 states have call predecessors, (3608), 3604 states have call successors, (3608) [2022-11-03 04:13:35,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12820 states to 12820 states and 18002 transitions. [2022-11-03 04:13:35,223 INFO L78 Accepts]: Start accepts. Automaton has 12820 states and 18002 transitions. Word has length 482 [2022-11-03 04:13:35,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:13:35,224 INFO L495 AbstractCegarLoop]: Abstraction has 12820 states and 18002 transitions. [2022-11-03 04:13:35,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2022-11-03 04:13:35,224 INFO L276 IsEmpty]: Start isEmpty. Operand 12820 states and 18002 transitions. [2022-11-03 04:13:35,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2022-11-03 04:13:35,256 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:13:35,256 INFO L195 NwaCegarLoop]: trace histogram [39, 33, 33, 33, 33, 33, 33, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:13:35,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 04:13:35,257 INFO L420 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)] === [2022-11-03 04:13:35,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:13:35,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1521143433, now seen corresponding path program 1 times [2022-11-03 04:13:35,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:13:35,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265768465] [2022-11-03 04:13:35,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:13:35,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:13:35,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:13:37,576 INFO L134 CoverageAnalysis]: Checked inductivity of 4865 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4865 trivial. 0 not checked. [2022-11-03 04:13:37,576 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:13:37,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265768465] [2022-11-03 04:13:37,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265768465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:13:37,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:13:37,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:13:37,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954527910] [2022-11-03 04:13:37,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:13:37,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:13:37,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:13:37,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:13:37,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:13:37,580 INFO L87 Difference]: Start difference. First operand 12820 states and 18002 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 2 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2022-11-03 04:13:39,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:13:43,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:13:47,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:13:48,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:13:51,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:14:00,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:14:00,771 INFO L93 Difference]: Finished difference Result 23558 states and 34091 transitions. [2022-11-03 04:14:00,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:14:00,772 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 2 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 558 [2022-11-03 04:14:00,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:14:00,843 INFO L225 Difference]: With dead ends: 23558 [2022-11-03 04:14:00,843 INFO L226 Difference]: Without dead ends: 17153 [2022-11-03 04:14:00,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:14:00,875 INFO L413 NwaCegarLoop]: 3979 mSDtfsCounter, 2100 mSDsluCounter, 7832 mSDsCounter, 0 mSdLazyCounter, 1899 mSolverCounterSat, 502 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2310 SdHoareTripleChecker+Valid, 10624 SdHoareTripleChecker+Invalid, 2404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 1899 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:14:00,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2310 Valid, 10624 Invalid, 2404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [502 Valid, 1899 Invalid, 3 Unknown, 0 Unchecked, 22.5s Time] [2022-11-03 04:14:00,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17153 states. [2022-11-03 04:14:01,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17153 to 12822. [2022-11-03 04:14:01,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12822 states, 8122 states have (on average 1.3283673971928096) internal successors, (10789), 8221 states have internal predecessors, (10789), 3607 states have call successors, (3607), 1092 states have call predecessors, (3607), 1089 states have return successors, (3608), 3562 states have call predecessors, (3608), 3604 states have call successors, (3608) [2022-11-03 04:14:01,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12822 states to 12822 states and 18004 transitions. [2022-11-03 04:14:01,929 INFO L78 Accepts]: Start accepts. Automaton has 12822 states and 18004 transitions. Word has length 558 [2022-11-03 04:14:01,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:14:01,930 INFO L495 AbstractCegarLoop]: Abstraction has 12822 states and 18004 transitions. [2022-11-03 04:14:01,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 2 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2022-11-03 04:14:01,931 INFO L276 IsEmpty]: Start isEmpty. Operand 12822 states and 18004 transitions. [2022-11-03 04:14:01,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 565 [2022-11-03 04:14:01,965 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:14:01,966 INFO L195 NwaCegarLoop]: trace histogram [39, 33, 33, 33, 33, 33, 33, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:14:01,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 04:14:01,966 INFO L420 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)] === [2022-11-03 04:14:01,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:14:01,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1795504855, now seen corresponding path program 1 times [2022-11-03 04:14:01,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:14:01,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65176673] [2022-11-03 04:14:01,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:14:01,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:14:02,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:14:08,906 INFO L134 CoverageAnalysis]: Checked inductivity of 4865 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4865 trivial. 0 not checked. [2022-11-03 04:14:08,907 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:14:08,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65176673] [2022-11-03 04:14:08,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65176673] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:14:08,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:14:08,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 04:14:08,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606337088] [2022-11-03 04:14:08,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:14:08,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 04:14:08,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:14:08,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 04:14:08,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:14:08,910 INFO L87 Difference]: Start difference. First operand 12822 states and 18004 transitions. Second operand has 8 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 2 states have call successors, (66), 2 states have call predecessors, (66), 3 states have return successors, (64), 4 states have call predecessors, (64), 2 states have call successors, (64) [2022-11-03 04:14:11,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:14:16,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:14:17,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:14:19,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:14:24,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:14:25,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:14:27,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:14:29,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:14:31,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:14:34,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:14:51,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:14:53,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:14:54,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:14:54,362 INFO L93 Difference]: Finished difference Result 23356 states and 33730 transitions. [2022-11-03 04:14:54,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 04:14:54,364 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 2 states have call successors, (66), 2 states have call predecessors, (66), 3 states have return successors, (64), 4 states have call predecessors, (64), 2 states have call successors, (64) Word has length 564 [2022-11-03 04:14:54,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:14:54,430 INFO L225 Difference]: With dead ends: 23356 [2022-11-03 04:14:54,430 INFO L226 Difference]: Without dead ends: 16937 [2022-11-03 04:14:54,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-03 04:14:54,457 INFO L413 NwaCegarLoop]: 3526 mSDtfsCounter, 529 mSDsluCounter, 24316 mSDsCounter, 0 mSdLazyCounter, 4467 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 24091 SdHoareTripleChecker+Invalid, 4472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4467 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:14:54,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 24091 Invalid, 4472 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 4467 Invalid, 5 Unknown, 0 Unchecked, 44.5s Time] [2022-11-03 04:14:54,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16937 states. [2022-11-03 04:14:55,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16937 to 12834. [2022-11-03 04:14:55,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12834 states, 8130 states have (on average 1.3280442804428045) internal successors, (10797), 8229 states have internal predecessors, (10797), 3607 states have call successors, (3607), 1092 states have call predecessors, (3607), 1093 states have return successors, (3622), 3566 states have call predecessors, (3622), 3604 states have call successors, (3622) [2022-11-03 04:14:55,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12834 states to 12834 states and 18026 transitions. [2022-11-03 04:14:55,403 INFO L78 Accepts]: Start accepts. Automaton has 12834 states and 18026 transitions. Word has length 564 [2022-11-03 04:14:55,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:14:55,404 INFO L495 AbstractCegarLoop]: Abstraction has 12834 states and 18026 transitions. [2022-11-03 04:14:55,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 2 states have call successors, (66), 2 states have call predecessors, (66), 3 states have return successors, (64), 4 states have call predecessors, (64), 2 states have call successors, (64) [2022-11-03 04:14:55,405 INFO L276 IsEmpty]: Start isEmpty. Operand 12834 states and 18026 transitions. [2022-11-03 04:14:55,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 582 [2022-11-03 04:14:55,443 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:14:55,443 INFO L195 NwaCegarLoop]: trace histogram [39, 33, 33, 33, 33, 33, 33, 13, 13, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:14:55,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 04:14:55,444 INFO L420 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)] === [2022-11-03 04:14:55,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:14:55,445 INFO L85 PathProgramCache]: Analyzing trace with hash -384399921, now seen corresponding path program 1 times [2022-11-03 04:14:55,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:14:55,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231285394] [2022-11-03 04:14:55,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:14:55,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:14:56,006 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:14:56,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1899536706] [2022-11-03 04:14:56,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:14:56,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:14:56,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a941030a-7997-4845-bb0c-5794d615dad5/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:14:56,010 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a941030a-7997-4845-bb0c-5794d615dad5/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:14:56,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a941030a-7997-4845-bb0c-5794d615dad5/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 04:15:00,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:15:00,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 13068 conjuncts, 179 conjunts are in the unsatisfiable core [2022-11-03 04:15:00,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:15:03,202 INFO L390 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 [2022-11-03 04:15:03,213 INFO L390 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 [2022-11-03 04:15:04,024 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 67 [2022-11-03 04:15:04,035 INFO L390 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 0 case distinctions, treesize of input 64 treesize of output 67 [2022-11-03 04:15:23,089 INFO L390 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 54 treesize of output 49 [2022-11-03 04:15:23,108 INFO L390 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 0 case distinctions, treesize of input 54 treesize of output 49 [2022-11-03 04:15:45,418 INFO L390 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 54 treesize of output 49 [2022-11-03 04:15:45,429 INFO L390 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 0 case distinctions, treesize of input 54 treesize of output 49 [2022-11-03 04:15:58,148 INFO L390 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 48 treesize of output 36 [2022-11-03 04:15:58,155 INFO L390 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 40 treesize of output 28 [2022-11-03 04:16:02,374 INFO L134 CoverageAnalysis]: Checked inductivity of 4940 backedges. 0 proven. 268 refuted. 0 times theorem prover too weak. 4672 trivial. 0 not checked. [2022-11-03 04:16:02,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:16:06,486 INFO L134 CoverageAnalysis]: Checked inductivity of 4940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4940 trivial. 0 not checked. [2022-11-03 04:16:06,487 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:16:06,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231285394] [2022-11-03 04:16:06,487 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:16:06,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899536706] [2022-11-03 04:16:06,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899536706] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-03 04:16:06,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 04:16:06,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [14] total 24 [2022-11-03 04:16:06,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985278941] [2022-11-03 04:16:06,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:16:06,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 04:16:06,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:16:06,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 04:16:06,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=455, Unknown=22, NotChecked=0, Total=552 [2022-11-03 04:16:06,492 INFO L87 Difference]: Start difference. First operand 12834 states and 18026 transitions. Second operand has 12 states, 12 states have (on average 12.75) internal successors, (153), 10 states have internal predecessors, (153), 5 states have call successors, (70), 5 states have call predecessors, (70), 3 states have return successors, (68), 5 states have call predecessors, (68), 5 states have call successors, (68) [2022-11-03 04:16:08,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:16:28,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:16:55,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:16:57,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:16:59,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:17:01,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:17:16,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:17:21,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:18:22,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:18:24,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:18:26,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:18:29,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:18:31,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:18:33,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:18:35,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:18:37,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:18:40,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:18:40,777 INFO L93 Difference]: Finished difference Result 19168 states and 27116 transitions. [2022-11-03 04:18:40,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-03 04:18:40,779 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.75) internal successors, (153), 10 states have internal predecessors, (153), 5 states have call successors, (70), 5 states have call predecessors, (70), 3 states have return successors, (68), 5 states have call predecessors, (68), 5 states have call successors, (68) Word has length 581 [2022-11-03 04:18:40,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:18:40,841 INFO L225 Difference]: With dead ends: 19168 [2022-11-03 04:18:40,841 INFO L226 Difference]: Without dead ends: 19166 [2022-11-03 04:18:40,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1175 GetRequests, 1136 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 60.3s TimeCoverageRelationStatistics Valid=179, Invalid=1131, Unknown=22, NotChecked=0, Total=1332 [2022-11-03 04:18:40,848 INFO L413 NwaCegarLoop]: 3004 mSDtfsCounter, 3982 mSDsluCounter, 17165 mSDsCounter, 0 mSdLazyCounter, 23224 mSolverCounterSat, 3380 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 132.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4259 SdHoareTripleChecker+Valid, 17258 SdHoareTripleChecker+Invalid, 26616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3380 IncrementalHoareTripleChecker+Valid, 23224 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 149.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:18:40,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4259 Valid, 17258 Invalid, 26616 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3380 Valid, 23224 Invalid, 12 Unknown, 0 Unchecked, 149.8s Time] [2022-11-03 04:18:40,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19166 states. [2022-11-03 04:18:42,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19166 to 18373. [2022-11-03 04:18:42,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18373 states, 11595 states have (on average 1.326175075463562) internal successors, (15377), 11751 states have internal predecessors, (15377), 5197 states have call successors, (5197), 1566 states have call predecessors, (5197), 1577 states have return successors, (5241), 5138 states have call predecessors, (5241), 5194 states have call successors, (5241) [2022-11-03 04:18:42,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18373 states to 18373 states and 25815 transitions. [2022-11-03 04:18:42,512 INFO L78 Accepts]: Start accepts. Automaton has 18373 states and 25815 transitions. Word has length 581 [2022-11-03 04:18:42,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:18:42,513 INFO L495 AbstractCegarLoop]: Abstraction has 18373 states and 25815 transitions. [2022-11-03 04:18:42,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.75) internal successors, (153), 10 states have internal predecessors, (153), 5 states have call successors, (70), 5 states have call predecessors, (70), 3 states have return successors, (68), 5 states have call predecessors, (68), 5 states have call successors, (68) [2022-11-03 04:18:42,513 INFO L276 IsEmpty]: Start isEmpty. Operand 18373 states and 25815 transitions. [2022-11-03 04:18:42,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 580 [2022-11-03 04:18:42,537 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:18:42,538 INFO L195 NwaCegarLoop]: trace histogram [39, 33, 33, 33, 33, 33, 33, 13, 13, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:18:42,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a941030a-7997-4845-bb0c-5794d615dad5/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 04:18:42,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a941030a-7997-4845-bb0c-5794d615dad5/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:18:42,765 INFO L420 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)] === [2022-11-03 04:18:42,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:18:42,766 INFO L85 PathProgramCache]: Analyzing trace with hash -856385677, now seen corresponding path program 1 times [2022-11-03 04:18:42,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:18:42,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851297198] [2022-11-03 04:18:42,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:18:42,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:18:43,135 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:18:43,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [870381553] [2022-11-03 04:18:43,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:18:43,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:18:43,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a941030a-7997-4845-bb0c-5794d615dad5/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:18:43,140 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a941030a-7997-4845-bb0c-5794d615dad5/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:18:43,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a941030a-7997-4845-bb0c-5794d615dad5/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 04:18:46,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:18:46,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 13039 conjuncts, 125 conjunts are in the unsatisfiable core [2022-11-03 04:18:46,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:18:46,686 INFO L390 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 [2022-11-03 04:18:48,782 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2183 Int) (atomic_set_~v.offset Int)) (and (= (store |c_old(#memory_int)| |c_atomic_set_#in~v.base| (store (select |c_old(#memory_int)| |c_atomic_set_#in~v.base|) atomic_set_~v.offset v_ArrVal_2183)) |c_#memory_int|) (<= atomic_set_~v.offset |c_atomic_set_#in~v.offset|))) is different from true [2022-11-03 04:18:48,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:18:48,800 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-03 04:18:48,883 INFO L390 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 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-03 04:18:49,011 INFO L390 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 0 case distinctions, treesize of input 33 treesize of output 40 [2022-11-03 04:18:49,666 INFO L134 CoverageAnalysis]: Checked inductivity of 4940 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 4670 trivial. 1 not checked. [2022-11-03 04:18:49,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:18:54,424 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_atomic_set_~v.offset_12 Int) (v_ArrVal_2207 Int)) (or (< (+ 228 |c_ULTIMATE.start_uvc_probe_~dev~1#1.offset|) v_atomic_set_~v.offset_12) (= (select (store (select |c_#memory_int| |c_ULTIMATE.start_uvc_probe_~dev~1#1.base|) v_atomic_set_~v.offset_12 v_ArrVal_2207) (+ 2726 |c_ULTIMATE.start_uvc_probe_~dev~1#1.offset|)) 0))) is different from false [2022-11-03 04:18:54,428 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:18:54,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851297198] [2022-11-03 04:18:54,428 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:18:54,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870381553] [2022-11-03 04:18:54,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [870381553] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:18:54,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1310828773] [2022-11-03 04:18:54,469 INFO L159 IcfgInterpreter]: Started Sifa with 238 locations of interest [2022-11-03 04:18:54,480 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:18:54,484 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:18:54,488 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:18:54,488 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs