./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_66a7c3d7-8f3f-4ff6-8c04-2ef955f00a71/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a7c3d7-8f3f-4ff6-8c04-2ef955f00a71/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a7c3d7-8f3f-4ff6-8c04-2ef955f00a71/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a7c3d7-8f3f-4ff6-8c04-2ef955f00a71/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a7c3d7-8f3f-4ff6-8c04-2ef955f00a71/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a7c3d7-8f3f-4ff6-8c04-2ef955f00a71/bin/utaipan-I9t0OCRTmS --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 27c97bcf411d26ec272f425e404581082a84d844ce897669cae8d1db38d078c4 --- 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-8393723 [2022-11-19 07:45:35,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:45:35,793 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:45:35,819 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:45:35,819 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:45:35,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:45:35,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:45:35,824 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:45:35,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:45:35,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:45:35,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:45:35,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:45:35,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:45:35,836 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:45:35,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:45:35,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:45:35,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:45:35,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:45:35,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:45:35,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:45:35,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:45:35,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:45:35,850 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:45:35,851 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:45:35,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:45:35,856 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:45:35,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:45:35,858 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:45:35,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:45:35,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:45:35,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:45:35,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:45:35,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:45:35,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:45:35,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:45:35,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:45:35,881 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:45:35,882 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:45:35,882 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:45:35,883 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:45:35,884 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:45:35,886 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a7c3d7-8f3f-4ff6-8c04-2ef955f00a71/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:45:35,943 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:45:35,944 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:45:35,944 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:45:35,944 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:45:35,945 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:45:35,945 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:45:35,946 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:45:35,946 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:45:35,946 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:45:35,946 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:45:35,947 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:45:35,947 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:45:35,947 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:45:35,947 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:45:35,948 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:45:35,948 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:45:35,948 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:45:35,948 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:45:35,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:45:35,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:45:35,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:45:35,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:45:35,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:45:35,954 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:45:35,955 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:45:35,955 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:45:35,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:45:35,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:45:35,957 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:45:35,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:45:35,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:45:35,958 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:45:35,958 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:45:35,958 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:45:35,958 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:45:35,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:45:35,960 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:45:35,960 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:45:35,961 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_66a7c3d7-8f3f-4ff6-8c04-2ef955f00a71/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a7c3d7-8f3f-4ff6-8c04-2ef955f00a71/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27c97bcf411d26ec272f425e404581082a84d844ce897669cae8d1db38d078c4 [2022-11-19 07:45:36,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:45:36,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:45:36,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:45:36,349 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:45:36,350 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:45:36,352 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a7c3d7-8f3f-4ff6-8c04-2ef955f00a71/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i [2022-11-19 07:45:36,457 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a7c3d7-8f3f-4ff6-8c04-2ef955f00a71/bin/utaipan-I9t0OCRTmS/data/43762667b/ccb27c6e6e28426ea3f70712335f36db/FLAGfc1e383d8 [2022-11-19 07:45:37,881 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:45:37,882 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a7c3d7-8f3f-4ff6-8c04-2ef955f00a71/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i [2022-11-19 07:45:38,012 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a7c3d7-8f3f-4ff6-8c04-2ef955f00a71/bin/utaipan-I9t0OCRTmS/data/43762667b/ccb27c6e6e28426ea3f70712335f36db/FLAGfc1e383d8 [2022-11-19 07:45:38,464 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a7c3d7-8f3f-4ff6-8c04-2ef955f00a71/bin/utaipan-I9t0OCRTmS/data/43762667b/ccb27c6e6e28426ea3f70712335f36db [2022-11-19 07:45:38,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:45:38,470 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:45:38,472 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:45:38,472 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:45:38,477 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:45:38,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:45:38" (1/1) ... [2022-11-19 07:45:38,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cdbe742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:38, skipping insertion in model container [2022-11-19 07:45:38,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:45:38" (1/1) ... [2022-11-19 07:45:38,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:45:38,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:45:45,878 WARN L234 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_66a7c3d7-8f3f-4ff6-8c04-2ef955f00a71/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[624921,624934] [2022-11-19 07:45:45,885 WARN L234 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_66a7c3d7-8f3f-4ff6-8c04-2ef955f00a71/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[625066,625079] [2022-11-19 07:45:45,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:45:46,033 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:45:47,145 WARN L234 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_66a7c3d7-8f3f-4ff6-8c04-2ef955f00a71/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[624921,624934] [2022-11-19 07:45:47,146 WARN L234 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_66a7c3d7-8f3f-4ff6-8c04-2ef955f00a71/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[625066,625079] [2022-11-19 07:45:47,157 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:45:47,568 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:45:47,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:47 WrapperNode [2022-11-19 07:45:47,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:45:47,571 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:45:47,571 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:45:47,571 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:45:47,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:47" (1/1) ... [2022-11-19 07:45:47,823 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:47" (1/1) ... [2022-11-19 07:45:48,262 INFO L138 Inliner]: procedures = 618, calls = 9059, calls flagged for inlining = 319, calls inlined = 245, statements flattened = 13657 [2022-11-19 07:45:48,263 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:45:48,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:45:48,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:45:48,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:45:48,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:47" (1/1) ... [2022-11-19 07:45:48,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:47" (1/1) ... [2022-11-19 07:45:48,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:47" (1/1) ... [2022-11-19 07:45:48,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:47" (1/1) ... [2022-11-19 07:45:48,820 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:47" (1/1) ... [2022-11-19 07:45:48,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:47" (1/1) ... [2022-11-19 07:45:48,950 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:47" (1/1) ... [2022-11-19 07:45:48,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:47" (1/1) ... [2022-11-19 07:45:49,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:45:49,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:45:49,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:45:49,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:45:49,095 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:47" (1/1) ... [2022-11-19 07:45:49,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:45:49,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a7c3d7-8f3f-4ff6-8c04-2ef955f00a71/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:45:49,139 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a7c3d7-8f3f-4ff6-8c04-2ef955f00a71/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:45:49,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a7c3d7-8f3f-4ff6-8c04-2ef955f00a71/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:45:49,196 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-19 07:45:49,196 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-19 07:45:49,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 07:45:49,196 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 07:45:49,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:45:49,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:45:49,197 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_read [2022-11-19 07:45:49,197 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_read [2022-11-19 07:45:49,197 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_release [2022-11-19 07:45:49,198 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_release [2022-11-19 07:45:49,198 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_find_control [2022-11-19 07:45:49,198 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_find_control [2022-11-19 07:45:49,198 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2022-11-19 07:45:49,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2022-11-19 07:45:49,199 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_ctrl_add_mapping [2022-11-19 07:45:49,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_ctrl_add_mapping [2022-11-19 07:45:49,199 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_buffer_finish [2022-11-19 07:45:49,199 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_buffer_finish [2022-11-19 07:45:49,199 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-11-19 07:45:49,200 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-11-19 07:45:49,200 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2022-11-19 07:45:49,200 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_wait_prepare [2022-11-19 07:45:49,200 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_wait_prepare [2022-11-19 07:45:49,200 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_alloc_urb_buffers [2022-11-19 07:45:49,201 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_alloc_urb_buffers [2022-11-19 07:45:49,201 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_clock_reset [2022-11-19 07:45:49,201 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_clock_reset [2022-11-19 07:45:49,201 INFO L130 BoogieDeclarations]: Found specification of procedure usb_match_one_id [2022-11-19 07:45:49,202 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_match_one_id [2022-11-19 07:45:49,202 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 07:45:49,202 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 07:45:49,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_59 [2022-11-19 07:45:49,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_59 [2022-11-19 07:45:49,203 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 07:45:49,204 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get_ts [2022-11-19 07:45:49,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get_ts [2022-11-19 07:45:49,204 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_entity_by_id [2022-11-19 07:45:49,204 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_entity_by_id [2022-11-19 07:45:49,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 07:45:49,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 07:45:49,205 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-19 07:45:49,205 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-19 07:45:49,206 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-19 07:45:49,206 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-19 07:45:49,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 07:45:49,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 07:45:49,207 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-19 07:45:49,208 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-19 07:45:49,209 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2022-11-19 07:45:49,209 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2022-11-19 07:45:49,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:45:49,209 INFO L130 BoogieDeclarations]: Found specification of procedure __chk_range_not_ok [2022-11-19 07:45:49,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __chk_range_not_ok [2022-11-19 07:45:49,210 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_query_v4l2_ctrl [2022-11-19 07:45:49,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_query_v4l2_ctrl [2022-11-19 07:45:49,210 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_data [2022-11-19 07:45:49,210 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_data [2022-11-19 07:45:49,211 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-19 07:45:49,211 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-19 07:45:49,212 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2022-11-19 07:45:49,212 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2022-11-19 07:45:49,212 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_ioctl [2022-11-19 07:45:49,212 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_ioctl [2022-11-19 07:45:49,212 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-19 07:45:49,213 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-19 07:45:49,213 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_populate_cache [2022-11-19 07:45:49,213 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_populate_cache [2022-11-19 07:45:49,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 07:45:49,213 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_add_info [2022-11-19 07:45:49,215 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_add_info [2022-11-19 07:45:49,215 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-19 07:45:49,215 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-19 07:45:49,216 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_buffer_done [2022-11-19 07:45:49,216 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_buffer_done [2022-11-19 07:45:49,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 07:45:49,216 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_query_ctrl [2022-11-19 07:45:49,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_query_ctrl [2022-11-19 07:45:49,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 07:45:49,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 07:45:49,217 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_wait_finish [2022-11-19 07:45:49,218 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_wait_finish [2022-11-19 07:45:49,218 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_reset_resume [2022-11-19 07:45:49,218 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_reset_resume [2022-11-19 07:45:49,219 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2022-11-19 07:45:49,219 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2022-11-19 07:45:49,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:45:49,221 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2022-11-19 07:45:49,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2022-11-19 07:45:49,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-19 07:45:49,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-19 07:45:49,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 07:45:49,223 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 07:45:49,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-19 07:45:49,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-19 07:45:49,223 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-19 07:45:49,223 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-19 07:45:49,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 07:45:49,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 07:45:49,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-19 07:45:49,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-19 07:45:49,224 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_scan_chain_forward [2022-11-19 07:45:49,225 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_scan_chain_forward [2022-11-19 07:45:49,225 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2022-11-19 07:45:49,225 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2022-11-19 07:45:49,226 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_commit_video [2022-11-19 07:45:49,226 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_commit_video [2022-11-19 07:45:49,226 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2022-11-19 07:45:49,227 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-19 07:45:49,228 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-19 07:45:49,231 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64_rem [2022-11-19 07:45:49,231 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64_rem [2022-11-19 07:45:49,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:45:49,233 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2022-11-19 07:45:49,234 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2022-11-19 07:45:49,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-19 07:45:49,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-19 07:45:49,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-11-19 07:45:49,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2022-11-19 07:45:49,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-19 07:45:49,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-19 07:45:49,242 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_ctrl_get [2022-11-19 07:45:49,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_ctrl_get [2022-11-19 07:45:49,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:45:49,366 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_find_endpoint [2022-11-19 07:45:49,366 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_find_endpoint [2022-11-19 07:45:49,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 07:45:49,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 07:45:49,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:45:49,367 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 07:45:49,367 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_endpoint_max_bpi [2022-11-19 07:45:49,367 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_endpoint_max_bpi [2022-11-19 07:45:49,367 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:45:49,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:45:49,368 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_set_video_ctrl [2022-11-19 07:45:49,368 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_set_video_ctrl [2022-11-19 07:45:49,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-19 07:45:49,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-19 07:45:49,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-19 07:45:49,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-19 07:45:49,368 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-19 07:45:49,368 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-19 07:45:49,369 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_delete [2022-11-19 07:45:49,369 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_delete [2022-11-19 07:45:49,369 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_commit_entity [2022-11-19 07:45:49,369 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_commit_entity [2022-11-19 07:45:49,369 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_free_urb_buffers [2022-11-19 07:45:49,369 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_free_urb_buffers [2022-11-19 07:45:49,369 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-19 07:45:49,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-19 07:45:49,370 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_del_event [2022-11-19 07:45:49,370 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_del_event [2022-11-19 07:45:49,370 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user [2022-11-19 07:45:49,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user [2022-11-19 07:45:49,370 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_open [2022-11-19 07:45:49,370 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_open [2022-11-19 07:45:49,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:45:49,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:45:49,371 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-11-19 07:45:49,372 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-11-19 07:45:49,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 07:45:49,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:45:49,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 07:45:49,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 07:45:49,373 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2022-11-19 07:45:49,373 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2022-11-19 07:45:49,373 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_fill_event [2022-11-19 07:45:49,373 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_fill_event [2022-11-19 07:45:49,381 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-11-19 07:45:49,382 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-11-19 07:45:49,382 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_get_plane_payload [2022-11-19 07:45:49,382 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_get_plane_payload [2022-11-19 07:45:49,382 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2022-11-19 07:45:49,382 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2022-11-19 07:45:49,383 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-11-19 07:45:49,383 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-11-19 07:45:49,383 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2022-11-19 07:45:49,383 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2022-11-19 07:45:49,383 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-11-19 07:45:49,384 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-11-19 07:45:49,384 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_debugfs_cleanup [2022-11-19 07:45:49,384 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_debugfs_cleanup [2022-11-19 07:45:49,384 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2022-11-19 07:45:49,384 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2022-11-19 07:45:49,385 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-19 07:45:49,385 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-19 07:45:49,385 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_queue_fh [2022-11-19 07:45:49,385 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_queue_fh [2022-11-19 07:45:49,385 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_init_video [2022-11-19 07:45:49,386 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_init_video [2022-11-19 07:45:49,386 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_status_start [2022-11-19 07:45:49,386 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_status_start [2022-11-19 07:45:49,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:45:49,386 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:45:49,387 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_intf [2022-11-19 07:45:49,387 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_intf [2022-11-19 07:45:49,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_5_4 [2022-11-19 07:45:49,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_5_4 [2022-11-19 07:45:49,387 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR_OR_NULL [2022-11-19 07:45:49,388 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR_OR_NULL [2022-11-19 07:45:49,388 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_find_control [2022-11-19 07:45:49,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_find_control [2022-11-19 07:45:49,388 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_clock_cleanup [2022-11-19 07:45:49,388 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_clock_cleanup [2022-11-19 07:45:49,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-11-19 07:45:49,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-11-19 07:45:49,389 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-19 07:45:49,389 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-19 07:45:49,389 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64 [2022-11-19 07:45:49,390 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64 [2022-11-19 07:45:49,390 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_buffer_prepare [2022-11-19 07:45:49,390 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_buffer_prepare [2022-11-19 07:45:49,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_59___0 [2022-11-19 07:45:49,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_59___0 [2022-11-19 07:45:49,391 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_set_zoom [2022-11-19 07:45:49,391 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_set_zoom [2022-11-19 07:45:49,391 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_test_bit [2022-11-19 07:45:49,391 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_test_bit [2022-11-19 07:45:49,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:45:49,392 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 07:45:49,392 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 07:45:49,392 INFO L130 BoogieDeclarations]: Found specification of procedure copy_in_user [2022-11-19 07:45:49,392 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_in_user [2022-11-19 07:45:49,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:45:49,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_uvc_cleanup_10_2 [2022-11-19 07:45:49,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_uvc_cleanup_10_2 [2022-11-19 07:45:49,393 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_status_stop [2022-11-19 07:45:49,393 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_status_stop [2022-11-19 07:45:49,393 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_alloc_entity [2022-11-19 07:45:49,394 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_alloc_entity [2022-11-19 07:45:49,394 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2022-11-19 07:45:49,394 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2022-11-19 07:45:49,394 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_query_ctrl [2022-11-19 07:45:49,394 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_query_ctrl [2022-11-19 07:45:49,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:45:49,395 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-19 07:45:49,396 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-19 07:45:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-19 07:45:49,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-19 07:45:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-19 07:45:49,402 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-19 07:45:49,402 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_dismiss_privileges [2022-11-19 07:45:49,402 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_dismiss_privileges [2022-11-19 07:45:49,402 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-19 07:45:49,402 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-19 07:45:49,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irqlock_of_uvc_video_queue [2022-11-19 07:45:49,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irqlock_of_uvc_video_queue [2022-11-19 07:45:49,407 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-19 07:45:49,407 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-19 07:45:49,407 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~__u8~0~X~$Pointer$~TO~~__s32~0 [2022-11-19 07:45:49,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~__u8~0~X~$Pointer$~TO~~__s32~0 [2022-11-19 07:45:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 07:45:49,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 07:45:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_clock_host_sof [2022-11-19 07:45:49,408 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_clock_host_sof [2022-11-19 07:45:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-19 07:45:49,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-19 07:45:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-19 07:45:49,409 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-19 07:45:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_uvc_clock [2022-11-19 07:45:49,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_uvc_clock [2022-11-19 07:45:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure compat_alloc_user_space [2022-11-19 07:45:49,410 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_alloc_user_space [2022-11-19 07:45:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_plane_size [2022-11-19 07:45:49,410 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_plane_size [2022-11-19 07:45:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2022-11-19 07:45:49,411 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2022-11-19 07:45:49,411 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_print_terms [2022-11-19 07:45:49,411 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_print_terms [2022-11-19 07:45:49,411 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-19 07:45:49,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-19 07:45:49,412 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_has_privileges [2022-11-19 07:45:49,412 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_has_privileges [2022-11-19 07:45:49,412 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_enable [2022-11-19 07:45:49,412 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_enable [2022-11-19 07:45:49,412 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 07:45:49,413 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 07:45:49,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:45:49,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 07:45:49,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 07:45:49,413 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2022-11-19 07:45:49,414 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2022-11-19 07:45:49,414 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_init [2022-11-19 07:45:49,414 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_init [2022-11-19 07:45:49,414 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-19 07:45:49,414 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-19 07:45:49,414 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_entity_match_guid [2022-11-19 07:45:49,415 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_entity_match_guid [2022-11-19 07:45:49,415 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-19 07:45:49,415 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-19 07:45:49,415 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_uninit_video [2022-11-19 07:45:49,415 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_uninit_video [2022-11-19 07:45:49,416 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_debugfs_cleanup_stream [2022-11-19 07:45:49,416 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_debugfs_cleanup_stream [2022-11-19 07:45:49,416 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2022-11-19 07:45:49,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2022-11-19 07:45:49,417 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_queue_enable [2022-11-19 07:45:49,417 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_queue_enable [2022-11-19 07:45:49,417 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_get_video_ctrl [2022-11-19 07:45:49,417 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_get_video_ctrl [2022-11-19 07:45:49,417 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2022-11-19 07:45:49,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2022-11-19 07:45:49,418 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-11-19 07:45:49,418 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-11-19 07:45:49,418 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_get_drv_priv [2022-11-19 07:45:49,418 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_get_drv_priv [2022-11-19 07:45:49,418 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2022-11-19 07:45:49,419 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2022-11-19 07:45:49,419 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-19 07:45:49,419 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-19 07:45:49,419 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_buffer_queue [2022-11-19 07:45:49,419 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_buffer_queue [2022-11-19 07:45:49,420 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_resume [2022-11-19 07:45:49,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_resume [2022-11-19 07:45:49,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 07:45:49,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 07:45:49,420 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_unregister_video [2022-11-19 07:45:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_unregister_video [2022-11-19 07:45:49,421 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intf [2022-11-19 07:45:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intf [2022-11-19 07:45:49,421 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_resume [2022-11-19 07:45:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_resume [2022-11-19 07:45:49,422 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2022-11-19 07:45:49,422 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2022-11-19 07:45:49,422 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_cleanup [2022-11-19 07:45:49,422 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_cleanup [2022-11-19 07:45:49,422 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_queue_streaming [2022-11-19 07:45:49,423 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_queue_streaming [2022-11-19 07:45:49,423 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_disconnect [2022-11-19 07:45:49,423 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_disconnect [2022-11-19 07:45:49,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:45:49,423 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2022-11-19 07:45:49,423 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2022-11-19 07:45:49,424 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_get_zoom [2022-11-19 07:45:49,424 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_get_zoom [2022-11-19 07:45:49,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-19 07:45:49,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-19 07:45:51,197 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:45:51,202 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:45:51,425 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 07:45:52,104 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11812: SUMMARY for call __copy_to_user_nocheck_#t~ret1066#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 [2022-11-19 07:45:52,104 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11849: assume 0 != __copy_to_user_nocheck_~tmp___1~14#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2022-11-19 07:45:52,104 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11849: assume !(0 != __copy_to_user_nocheck_~tmp___1~14#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2022-11-19 07:45:52,105 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11804: assume 10 == __copy_to_user_nocheck_~size#1 % 4294967296; [2022-11-19 07:45:52,105 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11804: assume !(10 == __copy_to_user_nocheck_~size#1 % 4294967296); [2022-11-19 07:45:52,105 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11808: assume 16 == __copy_to_user_nocheck_~size#1 % 4294967296; [2022-11-19 07:45:52,105 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11808: assume !(16 == __copy_to_user_nocheck_~size#1 % 4294967296); [2022-11-19 07:45:52,105 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11796: assume 4 == __copy_to_user_nocheck_~size#1 % 4294967296; [2022-11-19 07:45:52,105 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11796: assume !(4 == __copy_to_user_nocheck_~size#1 % 4294967296); [2022-11-19 07:45:52,106 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11800: assume 8 == __copy_to_user_nocheck_~size#1 % 4294967296; [2022-11-19 07:45:52,106 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11800: assume !(8 == __copy_to_user_nocheck_~size#1 % 4294967296); [2022-11-19 07:45:52,106 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11833: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1064#1 && __copy_to_user_nocheck_#t~ret1064#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~24#1 := __copy_to_user_nocheck_#t~ret1064#1;havoc __copy_to_user_nocheck_#t~ret1064#1; [2022-11-19 07:45:52,106 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11792: assume 2 == __copy_to_user_nocheck_~size#1 % 4294967296; [2022-11-19 07:45:52,106 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11792: assume !(2 == __copy_to_user_nocheck_~size#1 % 4294967296); [2022-11-19 07:45:52,107 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11805: SUMMARY for call __copy_to_user_nocheck_#t~ret1064#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~18#1 then 1 else 0), 0); srcloc: null [2022-11-19 07:45:52,107 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11809: SUMMARY for call __copy_to_user_nocheck_#t~ret1065#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~18#1 then 1 else 0), 0); srcloc: null [2022-11-19 07:45:52,107 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11797: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2022-11-19 07:45:52,107 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11859: __copy_to_user_nocheck_~tmp___2~10#1 := __copy_to_user_nocheck_#t~ret1066#1;havoc __copy_to_user_nocheck_#t~ret1066#1;__copy_to_user_nocheck_#res#1 := (if __copy_to_user_nocheck_~tmp___2~10#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_nocheck_~tmp___2~10#1 % 18446744073709551616 % 4294967296 else __copy_to_user_nocheck_~tmp___2~10#1 % 18446744073709551616 % 4294967296 - 4294967296); [2022-11-19 07:45:52,107 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11801: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2022-11-19 07:45:52,108 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11789: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2022-11-19 07:45:52,108 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11793: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2022-11-19 07:45:52,108 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume 1 == __copy_to_user_nocheck_~size#1 % 4294967296; [2022-11-19 07:45:52,108 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !(1 == __copy_to_user_nocheck_~size#1 % 4294967296); [2022-11-19 07:45:52,108 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11847: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1065#1 && __copy_to_user_nocheck_#t~ret1065#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~14#1 := __copy_to_user_nocheck_#t~ret1065#1;havoc __copy_to_user_nocheck_#t~ret1065#1; [2022-11-19 07:45:52,108 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11835: assume 0 != __copy_to_user_nocheck_~tmp___0~24#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2022-11-19 07:45:52,109 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11835: assume !(0 != __copy_to_user_nocheck_~tmp___0~24#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2022-11-19 07:45:56,013 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11700: SUMMARY for call __copy_from_user_nocheck_#t~ret1060#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~17#1 then 1 else 0), 0); srcloc: null [2022-11-19 07:45:56,013 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11692: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2022-11-19 07:45:56,013 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11696: SUMMARY for call __copy_from_user_nocheck_#t~ret1059#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~17#1 then 1 else 0), 0); srcloc: null [2022-11-19 07:45:56,013 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11729: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1059#1 && __copy_from_user_nocheck_#t~ret1059#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~23#1 := __copy_from_user_nocheck_#t~ret1059#1;havoc __copy_from_user_nocheck_#t~ret1059#1; [2022-11-19 07:45:56,014 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11684: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2022-11-19 07:45:56,014 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11746: assume 0 != __copy_from_user_nocheck_~tmp___1~13#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2022-11-19 07:45:56,014 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11746: assume !(0 != __copy_from_user_nocheck_~tmp___1~13#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2022-11-19 07:45:56,014 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11688: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2022-11-19 07:45:56,014 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11680: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2022-11-19 07:45:56,014 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11731: assume 0 != __copy_from_user_nocheck_~tmp___0~23#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2022-11-19 07:45:56,014 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11731: assume !(0 != __copy_from_user_nocheck_~tmp___0~23#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2022-11-19 07:45:56,015 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11756: __copy_from_user_nocheck_~tmp___2~9#1 := __copy_from_user_nocheck_#t~ret1061#1;havoc __copy_from_user_nocheck_#t~ret1061#1;__copy_from_user_nocheck_#res#1 := (if __copy_from_user_nocheck_~tmp___2~9#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_nocheck_~tmp___2~9#1 % 18446744073709551616 % 4294967296 else __copy_from_user_nocheck_~tmp___2~9#1 % 18446744073709551616 % 4294967296 - 4294967296); [2022-11-19 07:45:56,015 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume 1 == __copy_from_user_nocheck_~size#1 % 4294967296; [2022-11-19 07:45:56,015 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !(1 == __copy_from_user_nocheck_~size#1 % 4294967296); [2022-11-19 07:45:56,015 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11744: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1060#1 && __copy_from_user_nocheck_#t~ret1060#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~13#1 := __copy_from_user_nocheck_#t~ret1060#1;havoc __copy_from_user_nocheck_#t~ret1060#1; [2022-11-19 07:45:56,015 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11699: assume 16 == __copy_from_user_nocheck_~size#1 % 4294967296; [2022-11-19 07:45:56,015 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11699: assume !(16 == __copy_from_user_nocheck_~size#1 % 4294967296); [2022-11-19 07:45:56,015 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11703: SUMMARY for call __copy_from_user_nocheck_#t~ret1061#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 [2022-11-19 07:45:56,015 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11691: assume 8 == __copy_from_user_nocheck_~size#1 % 4294967296; [2022-11-19 07:45:56,016 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11691: assume !(8 == __copy_from_user_nocheck_~size#1 % 4294967296); [2022-11-19 07:45:56,016 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11695: assume 10 == __copy_from_user_nocheck_~size#1 % 4294967296; [2022-11-19 07:45:56,016 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11695: assume !(10 == __copy_from_user_nocheck_~size#1 % 4294967296); [2022-11-19 07:45:56,016 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11683: assume 2 == __copy_from_user_nocheck_~size#1 % 4294967296; [2022-11-19 07:45:56,016 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11683: assume !(2 == __copy_from_user_nocheck_~size#1 % 4294967296); [2022-11-19 07:45:56,016 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11687: assume 4 == __copy_from_user_nocheck_~size#1 % 4294967296; [2022-11-19 07:45:56,016 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L11687: assume !(4 == __copy_from_user_nocheck_~size#1 % 4294967296); [2022-11-19 07:51:12,531 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-19 07:51:12,659 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:51:16,707 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:51:16,707 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2022-11-19 07:51:16,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:51:16 BoogieIcfgContainer [2022-11-19 07:51:16,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:51:16,719 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:51:16,719 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:51:16,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:51:16,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:45:38" (1/3) ... [2022-11-19 07:51:16,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@488ec4cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:51:16, skipping insertion in model container [2022-11-19 07:51:16,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:47" (2/3) ... [2022-11-19 07:51:16,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@488ec4cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:51:16, skipping insertion in model container [2022-11-19 07:51:16,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:51:16" (3/3) ... [2022-11-19 07:51:16,729 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i [2022-11-19 07:51:16,750 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:51:16,750 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:51:16,875 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:51:16,886 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;@1c2764d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:51:16,886 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:51:16,900 INFO L276 IsEmpty]: Start isEmpty. Operand has 2331 states, 1493 states have (on average 1.3670462156731413) internal successors, (2041), 1511 states have internal predecessors, (2041), 680 states have call successors, (680), 158 states have call predecessors, (680), 157 states have return successors, (671), 665 states have call predecessors, (671), 671 states have call successors, (671) [2022-11-19 07:51:16,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2022-11-19 07:51:16,946 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:51:16,947 INFO L195 NwaCegarLoop]: trace histogram [32, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:51:16,947 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:51:16,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:51:16,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1678279263, now seen corresponding path program 1 times [2022-11-19 07:51:16,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:51:16,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367182205] [2022-11-19 07:51:16,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:51:16,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:51:17,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:51:19,209 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3782 trivial. 0 not checked. [2022-11-19 07:51:19,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:51:19,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367182205] [2022-11-19 07:51:19,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367182205] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:51:19,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:51:19,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:51:19,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011690453] [2022-11-19 07:51:19,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:51:19,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:51:19,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:51:19,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:51:19,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:51:19,273 INFO L87 Difference]: Start difference. First operand has 2331 states, 1493 states have (on average 1.3670462156731413) internal successors, (2041), 1511 states have internal predecessors, (2041), 680 states have call successors, (680), 158 states have call predecessors, (680), 157 states have return successors, (671), 665 states have call predecessors, (671), 671 states have call successors, (671) Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-19 07:51:21,587 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 [] [2022-11-19 07:51:28,581 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 [] [2022-11-19 07:51:32,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:51:32,648 INFO L93 Difference]: Finished difference Result 6719 states and 9886 transitions. [2022-11-19 07:51:32,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:51:32,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 336 [2022-11-19 07:51:32,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:51:32,711 INFO L225 Difference]: With dead ends: 6719 [2022-11-19 07:51:32,711 INFO L226 Difference]: Without dead ends: 4388 [2022-11-19 07:51:32,732 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 [2022-11-19 07:51:32,737 INFO L413 NwaCegarLoop]: 3466 mSDtfsCounter, 3082 mSDsluCounter, 2827 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3082 SdHoareTripleChecker+Valid, 6293 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:51:32,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3082 Valid, 6293 Invalid, 1110 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 1095 Invalid, 2 Unknown, 0 Unchecked, 12.9s Time] [2022-11-19 07:51:32,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4388 states. [2022-11-19 07:51:33,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4388 to 4384. [2022-11-19 07:51:33,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4384 states, 2846 states have (on average 1.365073787772312) internal successors, (3885), 2882 states have internal predecessors, (3885), 1233 states have call successors, (1233), 304 states have call predecessors, (1233), 304 states have return successors, (1233), 1219 states have call predecessors, (1233), 1233 states have call successors, (1233) [2022-11-19 07:51:33,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4384 states to 4384 states and 6351 transitions. [2022-11-19 07:51:33,099 INFO L78 Accepts]: Start accepts. Automaton has 4384 states and 6351 transitions. Word has length 336 [2022-11-19 07:51:33,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:51:33,105 INFO L495 AbstractCegarLoop]: Abstraction has 4384 states and 6351 transitions. [2022-11-19 07:51:33,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-19 07:51:33,106 INFO L276 IsEmpty]: Start isEmpty. Operand 4384 states and 6351 transitions. [2022-11-19 07:51:33,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2022-11-19 07:51:33,124 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:51:33,125 INFO L195 NwaCegarLoop]: trace histogram [32, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:51:33,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:51:33,126 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:51:33,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:51:33,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1676385628, now seen corresponding path program 1 times [2022-11-19 07:51:33,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:51:33,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928933024] [2022-11-19 07:51:33,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:51:33,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:51:33,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:51:34,621 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3782 trivial. 0 not checked. [2022-11-19 07:51:34,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:51:34,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928933024] [2022-11-19 07:51:34,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928933024] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:51:34,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:51:34,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:51:34,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325926947] [2022-11-19 07:51:34,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:51:34,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:51:34,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:51:34,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:51:34,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:51:34,629 INFO L87 Difference]: Start difference. First operand 4384 states and 6351 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-19 07:51:36,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:51:42,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:51:44,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:51:48,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:51:48,855 INFO L93 Difference]: Finished difference Result 12517 states and 18114 transitions. [2022-11-19 07:51:48,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:51:48,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 355 [2022-11-19 07:51:48,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:51:48,908 INFO L225 Difference]: With dead ends: 12517 [2022-11-19 07:51:48,908 INFO L226 Difference]: Without dead ends: 8196 [2022-11-19 07:51:48,926 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 [2022-11-19 07:51:48,927 INFO L413 NwaCegarLoop]: 3330 mSDtfsCounter, 2775 mSDsluCounter, 2763 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2775 SdHoareTripleChecker+Valid, 6093 SdHoareTripleChecker+Invalid, 1108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:51:48,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2775 Valid, 6093 Invalid, 1108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1093 Invalid, 2 Unknown, 0 Unchecked, 13.8s Time] [2022-11-19 07:51:48,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8196 states. [2022-11-19 07:51:49,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8196 to 8190. [2022-11-19 07:51:49,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8190 states, 5344 states have (on average 1.3667664670658684) internal successors, (7304), 5420 states have internal predecessors, (7304), 2264 states have call successors, (2264), 581 states have call predecessors, (2264), 581 states have return successors, (2264), 2232 states have call predecessors, (2264), 2264 states have call successors, (2264) [2022-11-19 07:51:49,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8190 states to 8190 states and 11832 transitions. [2022-11-19 07:51:49,352 INFO L78 Accepts]: Start accepts. Automaton has 8190 states and 11832 transitions. Word has length 355 [2022-11-19 07:51:49,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:51:49,357 INFO L495 AbstractCegarLoop]: Abstraction has 8190 states and 11832 transitions. [2022-11-19 07:51:49,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-19 07:51:49,358 INFO L276 IsEmpty]: Start isEmpty. Operand 8190 states and 11832 transitions. [2022-11-19 07:51:49,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2022-11-19 07:51:49,367 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:51:49,367 INFO L195 NwaCegarLoop]: trace histogram [32, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:51:49,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:51:49,368 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:51:49,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:51:49,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1523020810, now seen corresponding path program 1 times [2022-11-19 07:51:49,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:51:49,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960707206] [2022-11-19 07:51:49,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:51:49,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:51:49,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:51:50,540 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3782 trivial. 0 not checked. [2022-11-19 07:51:50,540 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:51:50,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960707206] [2022-11-19 07:51:50,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960707206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:51:50,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:51:50,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:51:50,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218312890] [2022-11-19 07:51:50,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:51:50,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:51:50,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:51:50,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:51:50,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:51:50,544 INFO L87 Difference]: Start difference. First operand 8190 states and 11832 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-19 07:51:52,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:51:58,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:52:00,817 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 [] [2022-11-19 07:52:04,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:52:04,850 INFO L93 Difference]: Finished difference Result 20092 states and 28843 transitions. [2022-11-19 07:52:04,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:52:04,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 358 [2022-11-19 07:52:04,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:52:04,930 INFO L225 Difference]: With dead ends: 20092 [2022-11-19 07:52:04,930 INFO L226 Difference]: Without dead ends: 11965 [2022-11-19 07:52:04,967 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 [2022-11-19 07:52:04,968 INFO L413 NwaCegarLoop]: 3273 mSDtfsCounter, 1720 mSDsluCounter, 2765 mSDsCounter, 0 mSdLazyCounter, 1123 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1720 SdHoareTripleChecker+Valid, 6038 SdHoareTripleChecker+Invalid, 1141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1123 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:52:04,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1720 Valid, 6038 Invalid, 1141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1123 Invalid, 2 Unknown, 0 Unchecked, 13.8s Time] [2022-11-19 07:52:04,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11965 states. [2022-11-19 07:52:05,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11965 to 11955. [2022-11-19 07:52:05,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11955 states, 7718 states have (on average 1.3498315625809796) internal successors, (10418), 7824 states have internal predecessors, (10418), 3317 states have call successors, (3317), 919 states have call predecessors, (3317), 919 states have return successors, (3317), 3265 states have call predecessors, (3317), 3317 states have call successors, (3317) [2022-11-19 07:52:05,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11955 states to 11955 states and 17052 transitions. [2022-11-19 07:52:05,786 INFO L78 Accepts]: Start accepts. Automaton has 11955 states and 17052 transitions. Word has length 358 [2022-11-19 07:52:05,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:52:05,788 INFO L495 AbstractCegarLoop]: Abstraction has 11955 states and 17052 transitions. [2022-11-19 07:52:05,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-19 07:52:05,788 INFO L276 IsEmpty]: Start isEmpty. Operand 11955 states and 17052 transitions. [2022-11-19 07:52:05,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-11-19 07:52:05,802 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:52:05,802 INFO L195 NwaCegarLoop]: trace histogram [33, 31, 31, 31, 31, 31, 31, 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] [2022-11-19 07:52:05,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:52:05,803 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:52:05,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:52:05,804 INFO L85 PathProgramCache]: Analyzing trace with hash 22060547, now seen corresponding path program 1 times [2022-11-19 07:52:05,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:52:05,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487210496] [2022-11-19 07:52:05,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:52:05,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:52:06,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:52:07,056 INFO L134 CoverageAnalysis]: Checked inductivity of 3849 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3846 trivial. 0 not checked. [2022-11-19 07:52:07,057 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:52:07,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487210496] [2022-11-19 07:52:07,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487210496] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:52:07,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:52:07,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:52:07,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458281808] [2022-11-19 07:52:07,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:52:07,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:52:07,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:52:07,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:52:07,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:52:07,060 INFO L87 Difference]: Start difference. First operand 11955 states and 17052 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-19 07:52:09,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:52:11,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:52:14,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:52:17,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:52:20,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:52:24,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:52:24,599 INFO L93 Difference]: Finished difference Result 26401 states and 37570 transitions. [2022-11-19 07:52:24,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:52:24,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 360 [2022-11-19 07:52:24,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:52:24,683 INFO L225 Difference]: With dead ends: 26401 [2022-11-19 07:52:24,684 INFO L226 Difference]: Without dead ends: 14509 [2022-11-19 07:52:24,726 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 [2022-11-19 07:52:24,727 INFO L413 NwaCegarLoop]: 3372 mSDtfsCounter, 2626 mSDsluCounter, 2724 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 14 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2626 SdHoareTripleChecker+Valid, 6096 SdHoareTripleChecker+Invalid, 1125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:52:24,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2626 Valid, 6096 Invalid, 1125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1109 Invalid, 2 Unknown, 0 Unchecked, 17.0s Time] [2022-11-19 07:52:24,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14509 states. [2022-11-19 07:52:25,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14509 to 14507. [2022-11-19 07:52:25,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14507 states, 9392 states have (on average 1.3463586030664396) internal successors, (12645), 9517 states have internal predecessors, (12645), 3969 states have call successors, (3969), 1145 states have call predecessors, (3969), 1145 states have return successors, (3969), 3908 states have call predecessors, (3969), 3969 states have call successors, (3969) [2022-11-19 07:52:25,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14507 states to 14507 states and 20583 transitions. [2022-11-19 07:52:25,424 INFO L78 Accepts]: Start accepts. Automaton has 14507 states and 20583 transitions. Word has length 360 [2022-11-19 07:52:25,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:52:25,425 INFO L495 AbstractCegarLoop]: Abstraction has 14507 states and 20583 transitions. [2022-11-19 07:52:25,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-19 07:52:25,426 INFO L276 IsEmpty]: Start isEmpty. Operand 14507 states and 20583 transitions. [2022-11-19 07:52:25,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2022-11-19 07:52:25,437 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:52:25,438 INFO L195 NwaCegarLoop]: trace histogram [33, 31, 31, 31, 31, 31, 31, 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] [2022-11-19 07:52:25,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:52:25,438 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:52:25,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:52:25,439 INFO L85 PathProgramCache]: Analyzing trace with hash 939047086, now seen corresponding path program 1 times [2022-11-19 07:52:25,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:52:25,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191797576] [2022-11-19 07:52:25,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:52:25,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:52:25,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:52:26,815 INFO L134 CoverageAnalysis]: Checked inductivity of 3855 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3846 trivial. 0 not checked. [2022-11-19 07:52:26,815 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:52:26,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191797576] [2022-11-19 07:52:26,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191797576] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:52:26,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:52:26,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:52:26,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817105579] [2022-11-19 07:52:26,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:52:26,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:52:26,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:52:26,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:52:26,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:52:26,822 INFO L87 Difference]: Start difference. First operand 14507 states and 20583 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-11-19 07:52:29,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:52:30,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:52:35,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:52:36,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:52:38,974 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 [] [2022-11-19 07:52:42,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:52:42,488 INFO L93 Difference]: Finished difference Result 31004 states and 43795 transitions. [2022-11-19 07:52:42,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:52:42,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 377 [2022-11-19 07:52:42,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:52:42,575 INFO L225 Difference]: With dead ends: 31004 [2022-11-19 07:52:42,575 INFO L226 Difference]: Without dead ends: 16560 [2022-11-19 07:52:42,623 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 [2022-11-19 07:52:42,625 INFO L413 NwaCegarLoop]: 3713 mSDtfsCounter, 1715 mSDsluCounter, 2787 mSDsCounter, 0 mSdLazyCounter, 1217 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1715 SdHoareTripleChecker+Valid, 6500 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1217 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:52:42,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1715 Valid, 6500 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1217 Invalid, 2 Unknown, 0 Unchecked, 15.1s Time] [2022-11-19 07:52:42,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16560 states. [2022-11-19 07:52:43,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16560 to 16554. [2022-11-19 07:52:43,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16554 states, 10620 states have (on average 1.334557438794727) internal successors, (14173), 10753 states have internal predecessors, (14173), 4559 states have call successors, (4559), 1374 states have call predecessors, (4559), 1374 states have return successors, (4559), 4490 states have call predecessors, (4559), 4559 states have call successors, (4559) [2022-11-19 07:52:43,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16554 states to 16554 states and 23291 transitions. [2022-11-19 07:52:43,417 INFO L78 Accepts]: Start accepts. Automaton has 16554 states and 23291 transitions. Word has length 377 [2022-11-19 07:52:43,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:52:43,419 INFO L495 AbstractCegarLoop]: Abstraction has 16554 states and 23291 transitions. [2022-11-19 07:52:43,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-11-19 07:52:43,419 INFO L276 IsEmpty]: Start isEmpty. Operand 16554 states and 23291 transitions. [2022-11-19 07:52:43,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2022-11-19 07:52:43,440 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:52:43,440 INFO L195 NwaCegarLoop]: trace histogram [37, 32, 32, 32, 32, 32, 32, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:52:43,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:52:43,441 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:52:43,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:52:43,442 INFO L85 PathProgramCache]: Analyzing trace with hash 2138326294, now seen corresponding path program 1 times [2022-11-19 07:52:43,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:52:43,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095406321] [2022-11-19 07:52:43,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:52:43,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:52:43,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:52:45,065 INFO L134 CoverageAnalysis]: Checked inductivity of 4349 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4340 trivial. 0 not checked. [2022-11-19 07:52:45,065 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:52:45,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095406321] [2022-11-19 07:52:45,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095406321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:52:45,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:52:45,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:52:45,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048208697] [2022-11-19 07:52:45,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:52:45,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:52:45,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:52:45,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:52:45,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:52:45,069 INFO L87 Difference]: Start difference. First operand 16554 states and 23291 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-11-19 07:52:47,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:52:58,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:53:00,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:53:02,406 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 [] [2022-11-19 07:53:11,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:11,763 INFO L93 Difference]: Finished difference Result 62207 states and 87717 transitions. [2022-11-19 07:53:11,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:53:11,768 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 434 [2022-11-19 07:53:11,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:12,026 INFO L225 Difference]: With dead ends: 62207 [2022-11-19 07:53:12,026 INFO L226 Difference]: Without dead ends: 46258 [2022-11-19 07:53:12,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:53:12,086 INFO L413 NwaCegarLoop]: 4471 mSDtfsCounter, 9808 mSDsluCounter, 7169 mSDsCounter, 0 mSdLazyCounter, 1840 mSolverCounterSat, 2469 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9808 SdHoareTripleChecker+Valid, 11640 SdHoareTripleChecker+Invalid, 4311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2469 IncrementalHoareTripleChecker+Valid, 1840 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:12,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9808 Valid, 11640 Invalid, 4311 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2469 Valid, 1840 Invalid, 2 Unknown, 0 Unchecked, 24.6s Time] [2022-11-19 07:53:12,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46258 states. [2022-11-19 07:53:14,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46258 to 46240. [2022-11-19 07:53:14,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46240 states, 29809 states have (on average 1.3423462712603575) internal successors, (40014), 30152 states have internal predecessors, (40014), 12596 states have call successors, (12596), 3834 states have call predecessors, (12596), 3834 states have return successors, (12596), 12427 states have call predecessors, (12596), 12596 states have call successors, (12596) [2022-11-19 07:53:14,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46240 states to 46240 states and 65206 transitions. [2022-11-19 07:53:14,769 INFO L78 Accepts]: Start accepts. Automaton has 46240 states and 65206 transitions. Word has length 434 [2022-11-19 07:53:14,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:14,771 INFO L495 AbstractCegarLoop]: Abstraction has 46240 states and 65206 transitions. [2022-11-19 07:53:14,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-11-19 07:53:14,771 INFO L276 IsEmpty]: Start isEmpty. Operand 46240 states and 65206 transitions. [2022-11-19 07:53:14,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2022-11-19 07:53:14,809 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:14,811 INFO L195 NwaCegarLoop]: trace histogram [39, 32, 32, 32, 32, 32, 32, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:14,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:53:14,811 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:14,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:14,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1169391005, now seen corresponding path program 1 times [2022-11-19 07:53:14,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:14,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27432061] [2022-11-19 07:53:14,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:14,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:15,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:16,324 INFO L134 CoverageAnalysis]: Checked inductivity of 4510 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4492 trivial. 0 not checked. [2022-11-19 07:53:16,325 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:16,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27432061] [2022-11-19 07:53:16,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27432061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:16,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:16,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:53:16,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612727844] [2022-11-19 07:53:16,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:16,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:53:16,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:16,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:53:16,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:53:16,328 INFO L87 Difference]: Start difference. First operand 46240 states and 65206 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-19 07:53:18,629 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 [] [2022-11-19 07:53:29,240 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 [] [2022-11-19 07:53:36,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:36,272 INFO L93 Difference]: Finished difference Result 106813 states and 150686 transitions. [2022-11-19 07:53:36,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:53:36,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 446 [2022-11-19 07:53:36,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:36,752 INFO L225 Difference]: With dead ends: 106813 [2022-11-19 07:53:36,752 INFO L226 Difference]: Without dead ends: 61178 [2022-11-19 07:53:37,062 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 [2022-11-19 07:53:37,064 INFO L413 NwaCegarLoop]: 5317 mSDtfsCounter, 3036 mSDsluCounter, 2756 mSDsCounter, 0 mSdLazyCounter, 1580 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3036 SdHoareTripleChecker+Valid, 8073 SdHoareTripleChecker+Invalid, 1590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1580 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:37,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3036 Valid, 8073 Invalid, 1590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1580 Invalid, 2 Unknown, 0 Unchecked, 17.2s Time] [2022-11-19 07:53:37,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61178 states. [2022-11-19 07:53:40,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61178 to 61164. [2022-11-19 07:53:40,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61164 states, 39445 states have (on average 1.3416149068322982) internal successors, (52920), 39906 states have internal predecessors, (52920), 16638 states have call successors, (16638), 5080 states have call predecessors, (16638), 5080 states have return successors, (16638), 16409 states have call predecessors, (16638), 16638 states have call successors, (16638) [2022-11-19 07:53:41,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61164 states to 61164 states and 86196 transitions. [2022-11-19 07:53:41,088 INFO L78 Accepts]: Start accepts. Automaton has 61164 states and 86196 transitions. Word has length 446 [2022-11-19 07:53:41,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:41,090 INFO L495 AbstractCegarLoop]: Abstraction has 61164 states and 86196 transitions. [2022-11-19 07:53:41,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-19 07:53:41,090 INFO L276 IsEmpty]: Start isEmpty. Operand 61164 states and 86196 transitions. [2022-11-19 07:53:41,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2022-11-19 07:53:41,125 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:41,125 INFO L195 NwaCegarLoop]: trace histogram [37, 32, 32, 32, 32, 32, 32, 5, 5, 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] [2022-11-19 07:53:41,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 07:53:41,126 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:41,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:41,127 INFO L85 PathProgramCache]: Analyzing trace with hash 560641491, now seen corresponding path program 1 times [2022-11-19 07:53:41,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:41,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494313731] [2022-11-19 07:53:41,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:41,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:41,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:43,066 INFO L134 CoverageAnalysis]: Checked inductivity of 4353 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4341 trivial. 0 not checked. [2022-11-19 07:53:43,066 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:43,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494313731] [2022-11-19 07:53:43,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494313731] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:43,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:43,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:53:43,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312292773] [2022-11-19 07:53:43,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:43,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:53:43,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:43,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:53:43,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:53:43,070 INFO L87 Difference]: Start difference. First operand 61164 states and 86196 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-19 07:53:45,389 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 [] [2022-11-19 07:53:56,671 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 [] [2022-11-19 07:54:01,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:54:01,242 INFO L93 Difference]: Finished difference Result 138756 states and 194957 transitions. [2022-11-19 07:54:01,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:54:01,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 456 [2022-11-19 07:54:01,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:54:01,649 INFO L225 Difference]: With dead ends: 138756 [2022-11-19 07:54:01,649 INFO L226 Difference]: Without dead ends: 78197 [2022-11-19 07:54:01,830 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 [2022-11-19 07:54:01,831 INFO L413 NwaCegarLoop]: 4544 mSDtfsCounter, 2835 mSDsluCounter, 2364 mSDsCounter, 0 mSdLazyCounter, 1327 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2835 SdHoareTripleChecker+Valid, 6908 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1327 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:54:01,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2835 Valid, 6908 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1327 Invalid, 2 Unknown, 0 Unchecked, 14.8s Time] [2022-11-19 07:54:01,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78197 states. [2022-11-19 07:54:05,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78197 to 78162. [2022-11-19 07:54:05,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78162 states, 50105 states have (on average 1.3342780161660512) internal successors, (66854), 50717 states have internal predecessors, (66854), 21269 states have call successors, (21269), 6787 states have call predecessors, (21269), 6787 states have return successors, (21269), 20970 states have call predecessors, (21269), 21269 states have call successors, (21269) [2022-11-19 07:54:06,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78162 states to 78162 states and 109392 transitions. [2022-11-19 07:54:06,092 INFO L78 Accepts]: Start accepts. Automaton has 78162 states and 109392 transitions. Word has length 456 [2022-11-19 07:54:06,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:54:06,094 INFO L495 AbstractCegarLoop]: Abstraction has 78162 states and 109392 transitions. [2022-11-19 07:54:06,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-19 07:54:06,094 INFO L276 IsEmpty]: Start isEmpty. Operand 78162 states and 109392 transitions. [2022-11-19 07:54:06,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2022-11-19 07:54:06,130 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:54:06,130 INFO L195 NwaCegarLoop]: trace histogram [37, 32, 32, 32, 32, 32, 32, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:54:06,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 07:54:06,131 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:54:06,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:54:06,132 INFO L85 PathProgramCache]: Analyzing trace with hash -777931706, now seen corresponding path program 1 times [2022-11-19 07:54:06,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:54:06,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876561278] [2022-11-19 07:54:06,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:54:06,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:54:06,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:54:07,757 INFO L134 CoverageAnalysis]: Checked inductivity of 4350 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4343 trivial. 0 not checked. [2022-11-19 07:54:07,758 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:54:07,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876561278] [2022-11-19 07:54:07,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876561278] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:54:07,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:54:07,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:54:07,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368684792] [2022-11-19 07:54:07,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:54:07,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:54:07,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:54:07,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:54:07,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:54:07,761 INFO L87 Difference]: Start difference. First operand 78162 states and 109392 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2022-11-19 07:54:10,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:54:12,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:54:15,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:54:21,185 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 [] [2022-11-19 07:54:31,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:54:31,524 INFO L93 Difference]: Finished difference Result 187065 states and 261912 transitions. [2022-11-19 07:54:31,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:54:31,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) Word has length 454 [2022-11-19 07:54:31,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:54:31,983 INFO L225 Difference]: With dead ends: 187065 [2022-11-19 07:54:31,983 INFO L226 Difference]: Without dead ends: 109508 [2022-11-19 07:54:32,160 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 [2022-11-19 07:54:32,160 INFO L413 NwaCegarLoop]: 5118 mSDtfsCounter, 2783 mSDsluCounter, 2752 mSDsCounter, 0 mSdLazyCounter, 1537 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2783 SdHoareTripleChecker+Valid, 7870 SdHoareTripleChecker+Invalid, 1549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1537 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:54:32,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2783 Valid, 7870 Invalid, 1549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1537 Invalid, 3 Unknown, 0 Unchecked, 19.1s Time] [2022-11-19 07:54:32,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109508 states. [2022-11-19 07:54:36,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109508 to 109474. [2022-11-19 07:54:36,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109474 states, 70445 states have (on average 1.3351976719426504) internal successors, (94058), 71341 states have internal predecessors, (94058), 29483 states have call successors, (29483), 9545 states have call predecessors, (29483), 9545 states have return successors, (29483), 29020 states have call predecessors, (29483), 29483 states have call successors, (29483) [2022-11-19 07:54:36,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109474 states to 109474 states and 153024 transitions. [2022-11-19 07:54:36,784 INFO L78 Accepts]: Start accepts. Automaton has 109474 states and 153024 transitions. Word has length 454 [2022-11-19 07:54:36,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:54:36,785 INFO L495 AbstractCegarLoop]: Abstraction has 109474 states and 153024 transitions. [2022-11-19 07:54:36,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2022-11-19 07:54:36,786 INFO L276 IsEmpty]: Start isEmpty. Operand 109474 states and 153024 transitions. [2022-11-19 07:54:36,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2022-11-19 07:54:36,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:54:36,821 INFO L195 NwaCegarLoop]: trace histogram [37, 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] [2022-11-19 07:54:36,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 07:54:36,821 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:54:36,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:54:36,822 INFO L85 PathProgramCache]: Analyzing trace with hash 228910427, now seen corresponding path program 1 times [2022-11-19 07:54:36,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:54:36,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935255761] [2022-11-19 07:54:36,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:54:36,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:54:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:54:46,763 INFO L134 CoverageAnalysis]: Checked inductivity of 4515 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4515 trivial. 0 not checked. [2022-11-19 07:54:46,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:54:46,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935255761] [2022-11-19 07:54:46,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935255761] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:54:46,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:54:46,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 07:54:46,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036194722] [2022-11-19 07:54:46,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:54:46,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:54:46,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:54:46,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:54:46,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:54:46,767 INFO L87 Difference]: Start difference. First operand 109474 states and 153024 transitions. Second operand has 6 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (51), 3 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-19 07:54:48,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []