./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 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e584b5-f68f-4de6-9dbb-ac21c9018a56/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e584b5-f68f-4de6-9dbb-ac21c9018a56/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e584b5-f68f-4de6-9dbb-ac21c9018a56/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e584b5-f68f-4de6-9dbb-ac21c9018a56/bin/utaipan-eEHZpOm5b7/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_65e584b5-f68f-4de6-9dbb-ac21c9018a56/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e584b5-f68f-4de6-9dbb-ac21c9018a56/bin/utaipan-eEHZpOm5b7 --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 --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:43:22,859 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:43:22,862 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:43:22,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:43:22,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:43:22,926 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:43:22,929 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:43:22,935 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:43:22,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:43:22,945 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:43:22,946 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:43:22,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:43:22,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:43:22,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:43:22,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:43:22,958 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:43:22,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:43:22,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:43:22,967 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:43:22,976 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:43:22,979 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:43:22,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:43:22,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:43:22,985 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:43:22,995 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:43:22,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:43:22,996 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:43:22,999 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:43:22,999 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:43:23,001 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:43:23,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:43:23,002 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:43:23,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:43:23,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:43:23,008 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:43:23,008 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:43:23,009 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:43:23,009 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:43:23,010 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:43:23,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:43:23,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:43:23,012 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e584b5-f68f-4de6-9dbb-ac21c9018a56/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 18:43:23,061 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:43:23,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:43:23,062 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:43:23,062 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:43:23,064 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:43:23,071 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:43:23,071 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:43:23,072 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:43:23,072 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:43:23,072 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:43:23,073 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:43:23,074 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:43:23,074 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:43:23,074 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:43:23,074 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:43:23,075 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:43:23,075 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:43:23,075 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:43:23,076 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:43:23,076 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:43:23,077 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:43:23,077 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:43:23,077 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:43:23,077 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:43:23,078 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:43:23,078 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:43:23,078 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:43:23,078 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:43:23,079 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:43:23,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:43:23,079 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:43:23,080 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:43:23,080 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:43:23,080 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:43:23,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:43:23,081 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:43:23,081 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:43:23,081 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:43:23,081 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_65e584b5-f68f-4de6-9dbb-ac21c9018a56/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e584b5-f68f-4de6-9dbb-ac21c9018a56/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27c97bcf411d26ec272f425e404581082a84d844ce897669cae8d1db38d078c4 [2021-11-25 18:43:23,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:43:23,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:43:23,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:43:23,491 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:43:23,492 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:43:23,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e584b5-f68f-4de6-9dbb-ac21c9018a56/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i [2021-11-25 18:43:23,578 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e584b5-f68f-4de6-9dbb-ac21c9018a56/bin/utaipan-eEHZpOm5b7/data/2be3352cc/c90f01997cbb4e38b51bb281d37790d1/FLAG50aff8230 [2021-11-25 18:43:24,748 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:43:24,750 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e584b5-f68f-4de6-9dbb-ac21c9018a56/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i [2021-11-25 18:43:24,852 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e584b5-f68f-4de6-9dbb-ac21c9018a56/bin/utaipan-eEHZpOm5b7/data/2be3352cc/c90f01997cbb4e38b51bb281d37790d1/FLAG50aff8230 [2021-11-25 18:43:24,949 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e584b5-f68f-4de6-9dbb-ac21c9018a56/bin/utaipan-eEHZpOm5b7/data/2be3352cc/c90f01997cbb4e38b51bb281d37790d1 [2021-11-25 18:43:24,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:43:24,955 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:43:24,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:43:24,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:43:24,963 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:43:24,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:43:24" (1/1) ... [2021-11-25 18:43:24,966 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57bdc516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:24, skipping insertion in model container [2021-11-25 18:43:24,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:43:24" (1/1) ... [2021-11-25 18:43:24,973 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:43:25,190 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:43:32,239 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e584b5-f68f-4de6-9dbb-ac21c9018a56/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[624921,624934] [2021-11-25 18:43:32,244 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e584b5-f68f-4de6-9dbb-ac21c9018a56/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[625066,625079] [2021-11-25 18:43:32,301 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:43:32,492 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:43:33,571 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e584b5-f68f-4de6-9dbb-ac21c9018a56/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[624921,624934] [2021-11-25 18:43:33,572 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e584b5-f68f-4de6-9dbb-ac21c9018a56/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[625066,625079] [2021-11-25 18:43:33,581 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:43:33,914 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:43:33,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:33 WrapperNode [2021-11-25 18:43:33,914 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:43:33,915 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:43:33,916 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:43:33,916 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:43:33,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:33" (1/1) ... [2021-11-25 18:43:34,163 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:33" (1/1) ... [2021-11-25 18:43:34,746 INFO L137 Inliner]: procedures = 618, calls = 8979, calls flagged for inlining = 319, calls inlined = 245, statements flattened = 13575 [2021-11-25 18:43:34,747 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:43:34,748 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:43:34,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:43:34,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:43:34,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:33" (1/1) ... [2021-11-25 18:43:34,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:33" (1/1) ... [2021-11-25 18:43:34,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:33" (1/1) ... [2021-11-25 18:43:34,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:33" (1/1) ... [2021-11-25 18:43:35,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:33" (1/1) ... [2021-11-25 18:43:35,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:33" (1/1) ... [2021-11-25 18:43:35,513 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:33" (1/1) ... [2021-11-25 18:43:35,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:43:35,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:43:35,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:43:35,599 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:43:35,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:33" (1/1) ... [2021-11-25 18:43:35,608 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:43:35,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e584b5-f68f-4de6-9dbb-ac21c9018a56/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:43:35,635 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e584b5-f68f-4de6-9dbb-ac21c9018a56/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:43:35,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e584b5-f68f-4de6-9dbb-ac21c9018a56/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:43:35,760 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-25 18:43:35,760 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-25 18:43:35,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 18:43:35,760 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 18:43:35,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 18:43:35,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 18:43:35,761 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_read [2021-11-25 18:43:35,761 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_read [2021-11-25 18:43:35,761 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_release [2021-11-25 18:43:35,761 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_release [2021-11-25 18:43:35,762 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_find_control [2021-11-25 18:43:35,762 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_find_control [2021-11-25 18:43:35,762 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2021-11-25 18:43:35,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2021-11-25 18:43:35,762 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_ctrl_add_mapping [2021-11-25 18:43:35,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_ctrl_add_mapping [2021-11-25 18:43:35,763 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_buffer_finish [2021-11-25 18:43:35,763 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_buffer_finish [2021-11-25 18:43:35,763 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2021-11-25 18:43:35,763 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2021-11-25 18:43:35,763 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2021-11-25 18:43:35,763 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_wait_prepare [2021-11-25 18:43:35,764 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_wait_prepare [2021-11-25 18:43:35,764 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_alloc_urb_buffers [2021-11-25 18:43:35,764 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_alloc_urb_buffers [2021-11-25 18:43:35,764 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_clock_reset [2021-11-25 18:43:35,764 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_clock_reset [2021-11-25 18:43:35,764 INFO L130 BoogieDeclarations]: Found specification of procedure usb_match_one_id [2021-11-25 18:43:35,765 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_match_one_id [2021-11-25 18:43:35,765 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 18:43:35,765 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 18:43:35,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_59 [2021-11-25 18:43:35,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_59 [2021-11-25 18:43:35,766 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-25 18:43:35,766 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get_ts [2021-11-25 18:43:35,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get_ts [2021-11-25 18:43:35,766 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_entity_by_id [2021-11-25 18:43:35,766 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_entity_by_id [2021-11-25 18:43:35,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 18:43:35,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 18:43:35,767 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-11-25 18:43:35,767 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-11-25 18:43:35,768 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-25 18:43:35,768 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-25 18:43:35,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 18:43:35,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 18:43:35,768 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-25 18:43:35,769 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-25 18:43:35,770 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2021-11-25 18:43:35,770 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2021-11-25 18:43:35,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:43:35,771 INFO L130 BoogieDeclarations]: Found specification of procedure __chk_range_not_ok [2021-11-25 18:43:35,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __chk_range_not_ok [2021-11-25 18:43:35,771 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_query_v4l2_ctrl [2021-11-25 18:43:35,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_query_v4l2_ctrl [2021-11-25 18:43:35,772 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_data [2021-11-25 18:43:35,772 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_data [2021-11-25 18:43:35,772 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-25 18:43:35,773 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-25 18:43:35,773 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2021-11-25 18:43:35,773 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2021-11-25 18:43:35,773 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_ioctl [2021-11-25 18:43:35,774 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_ioctl [2021-11-25 18:43:35,774 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-25 18:43:35,774 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-25 18:43:35,774 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_populate_cache [2021-11-25 18:43:35,774 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_populate_cache [2021-11-25 18:43:35,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 18:43:35,775 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_add_info [2021-11-25 18:43:35,775 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_add_info [2021-11-25 18:43:35,775 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-25 18:43:35,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-25 18:43:35,775 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_buffer_done [2021-11-25 18:43:35,775 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_buffer_done [2021-11-25 18:43:35,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 18:43:35,777 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_query_ctrl [2021-11-25 18:43:35,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_query_ctrl [2021-11-25 18:43:35,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 18:43:35,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 18:43:35,777 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_wait_finish [2021-11-25 18:43:35,778 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_wait_finish [2021-11-25 18:43:35,778 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_reset_resume [2021-11-25 18:43:35,779 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_reset_resume [2021-11-25 18:43:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-11-25 18:43:35,779 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-11-25 18:43:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:43:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2021-11-25 18:43:35,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2021-11-25 18:43:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-25 18:43:35,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-25 18:43:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 18:43:35,782 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 18:43:35,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-25 18:43:35,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-25 18:43:35,782 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-25 18:43:35,782 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-25 18:43:35,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 18:43:35,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 18:43:35,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-25 18:43:35,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-25 18:43:35,783 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_scan_chain_forward [2021-11-25 18:43:35,783 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_scan_chain_forward [2021-11-25 18:43:35,784 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2021-11-25 18:43:35,784 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2021-11-25 18:43:35,784 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_commit_video [2021-11-25 18:43:35,784 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_commit_video [2021-11-25 18:43:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2021-11-25 18:43:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-25 18:43:35,785 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-25 18:43:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64_rem [2021-11-25 18:43:35,789 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64_rem [2021-11-25 18:43:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 18:43:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2021-11-25 18:43:35,789 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2021-11-25 18:43:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-25 18:43:35,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-25 18:43:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-25 18:43:35,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2021-11-25 18:43:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-25 18:43:35,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-25 18:43:35,797 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_ctrl_get [2021-11-25 18:43:35,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_ctrl_get [2021-11-25 18:43:35,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:43:35,798 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_find_endpoint [2021-11-25 18:43:35,798 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_find_endpoint [2021-11-25 18:43:35,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 18:43:35,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 18:43:35,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 18:43:35,799 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 18:43:35,799 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_endpoint_max_bpi [2021-11-25 18:43:35,799 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_endpoint_max_bpi [2021-11-25 18:43:35,799 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 18:43:35,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 18:43:35,799 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_set_video_ctrl [2021-11-25 18:43:35,799 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_set_video_ctrl [2021-11-25 18:43:35,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-25 18:43:35,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-25 18:43:35,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-25 18:43:35,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-25 18:43:35,800 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-11-25 18:43:35,800 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-11-25 18:43:35,800 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_delete [2021-11-25 18:43:35,801 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_delete [2021-11-25 18:43:35,801 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_commit_entity [2021-11-25 18:43:35,801 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_commit_entity [2021-11-25 18:43:35,801 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_free_urb_buffers [2021-11-25 18:43:35,801 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_free_urb_buffers [2021-11-25 18:43:35,801 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-25 18:43:35,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-25 18:43:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_del_event [2021-11-25 18:43:35,802 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_del_event [2021-11-25 18:43:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user [2021-11-25 18:43:35,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user [2021-11-25 18:43:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_open [2021-11-25 18:43:35,802 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_open [2021-11-25 18:43:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:43:35,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:43:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-11-25 18:43:35,803 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-11-25 18:43:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 18:43:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 18:43:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 18:43:35,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 18:43:35,804 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2021-11-25 18:43:35,804 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2021-11-25 18:43:35,804 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_fill_event [2021-11-25 18:43:35,804 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_fill_event [2021-11-25 18:43:35,804 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2021-11-25 18:43:35,804 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2021-11-25 18:43:35,804 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_get_plane_payload [2021-11-25 18:43:35,805 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_get_plane_payload [2021-11-25 18:43:35,805 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2021-11-25 18:43:35,805 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2021-11-25 18:43:35,805 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-11-25 18:43:35,805 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-11-25 18:43:35,805 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2021-11-25 18:43:35,805 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2021-11-25 18:43:35,806 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2021-11-25 18:43:35,806 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2021-11-25 18:43:35,806 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_debugfs_cleanup [2021-11-25 18:43:35,806 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_debugfs_cleanup [2021-11-25 18:43:35,806 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2021-11-25 18:43:35,806 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2021-11-25 18:43:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-25 18:43:35,808 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-25 18:43:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_queue_fh [2021-11-25 18:43:35,808 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_queue_fh [2021-11-25 18:43:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_init_video [2021-11-25 18:43:35,809 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_init_video [2021-11-25 18:43:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_status_start [2021-11-25 18:43:35,809 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_status_start [2021-11-25 18:43:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 18:43:35,809 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 18:43:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_intf [2021-11-25 18:43:35,810 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_intf [2021-11-25 18:43:35,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_5_4 [2021-11-25 18:43:35,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_5_4 [2021-11-25 18:43:35,810 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR_OR_NULL [2021-11-25 18:43:35,810 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR_OR_NULL [2021-11-25 18:43:35,810 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_find_control [2021-11-25 18:43:35,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_find_control [2021-11-25 18:43:35,811 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_clock_cleanup [2021-11-25 18:43:35,811 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_clock_cleanup [2021-11-25 18:43:35,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-25 18:43:35,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-25 18:43:35,811 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-11-25 18:43:35,811 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-11-25 18:43:35,812 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64 [2021-11-25 18:43:35,812 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64 [2021-11-25 18:43:35,812 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_buffer_prepare [2021-11-25 18:43:35,812 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_buffer_prepare [2021-11-25 18:43:35,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_59___0 [2021-11-25 18:43:35,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_59___0 [2021-11-25 18:43:35,812 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_set_zoom [2021-11-25 18:43:35,813 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_set_zoom [2021-11-25 18:43:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_test_bit [2021-11-25 18:43:35,813 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_test_bit [2021-11-25 18:43:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:43:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-25 18:43:35,813 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-25 18:43:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure copy_in_user [2021-11-25 18:43:35,814 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_in_user [2021-11-25 18:43:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 18:43:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_uvc_cleanup_10_2 [2021-11-25 18:43:35,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_uvc_cleanup_10_2 [2021-11-25 18:43:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_status_stop [2021-11-25 18:43:35,814 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_status_stop [2021-11-25 18:43:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_alloc_entity [2021-11-25 18:43:35,815 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_alloc_entity [2021-11-25 18:43:35,815 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2021-11-25 18:43:35,815 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2021-11-25 18:43:35,815 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_query_ctrl [2021-11-25 18:43:35,815 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_query_ctrl [2021-11-25 18:43:35,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 18:43:35,815 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-25 18:43:35,816 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-25 18:43:35,817 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-25 18:43:35,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-25 18:43:35,823 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-25 18:43:35,824 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-25 18:43:35,824 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_dismiss_privileges [2021-11-25 18:43:35,824 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_dismiss_privileges [2021-11-25 18:43:35,824 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-25 18:43:35,824 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-25 18:43:35,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irqlock_of_uvc_video_queue [2021-11-25 18:43:35,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irqlock_of_uvc_video_queue [2021-11-25 18:43:35,826 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-25 18:43:35,826 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-25 18:43:35,826 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~__u8~0~X~$Pointer$~TO~~__s32~0 [2021-11-25 18:43:35,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~__u8~0~X~$Pointer$~TO~~__s32~0 [2021-11-25 18:43:35,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 18:43:35,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 18:43:35,827 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_clock_host_sof [2021-11-25 18:43:35,827 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_clock_host_sof [2021-11-25 18:43:35,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-25 18:43:35,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-25 18:43:35,827 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-25 18:43:35,827 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-25 18:43:35,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_uvc_clock [2021-11-25 18:43:35,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_uvc_clock [2021-11-25 18:43:35,828 INFO L130 BoogieDeclarations]: Found specification of procedure compat_alloc_user_space [2021-11-25 18:43:35,828 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_alloc_user_space [2021-11-25 18:43:35,828 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_plane_size [2021-11-25 18:43:35,828 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_plane_size [2021-11-25 18:43:35,828 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2021-11-25 18:43:35,829 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2021-11-25 18:43:35,829 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_print_terms [2021-11-25 18:43:35,829 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_print_terms [2021-11-25 18:43:35,829 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-25 18:43:35,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-25 18:43:35,829 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_has_privileges [2021-11-25 18:43:35,829 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_has_privileges [2021-11-25 18:43:35,829 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_enable [2021-11-25 18:43:35,830 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_enable [2021-11-25 18:43:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 18:43:35,830 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 18:43:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:43:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 18:43:35,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 18:43:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2021-11-25 18:43:35,831 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2021-11-25 18:43:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_init [2021-11-25 18:43:35,831 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_init [2021-11-25 18:43:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-25 18:43:35,831 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-25 18:43:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_entity_match_guid [2021-11-25 18:43:35,831 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_entity_match_guid [2021-11-25 18:43:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-25 18:43:35,832 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-25 18:43:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_uninit_video [2021-11-25 18:43:35,832 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_uninit_video [2021-11-25 18:43:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_debugfs_cleanup_stream [2021-11-25 18:43:35,832 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_debugfs_cleanup_stream [2021-11-25 18:43:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2021-11-25 18:43:35,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2021-11-25 18:43:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_queue_enable [2021-11-25 18:43:35,833 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_queue_enable [2021-11-25 18:43:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_get_video_ctrl [2021-11-25 18:43:35,833 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_get_video_ctrl [2021-11-25 18:43:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2021-11-25 18:43:35,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2021-11-25 18:43:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2021-11-25 18:43:35,833 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2021-11-25 18:43:35,834 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_get_drv_priv [2021-11-25 18:43:35,834 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_get_drv_priv [2021-11-25 18:43:35,834 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2021-11-25 18:43:35,834 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2021-11-25 18:43:35,834 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-25 18:43:35,834 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-25 18:43:35,834 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_buffer_queue [2021-11-25 18:43:35,835 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_buffer_queue [2021-11-25 18:43:35,835 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_resume [2021-11-25 18:43:35,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_resume [2021-11-25 18:43:35,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 18:43:35,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 18:43:35,835 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_unregister_video [2021-11-25 18:43:35,835 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_unregister_video [2021-11-25 18:43:35,835 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intf [2021-11-25 18:43:35,836 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intf [2021-11-25 18:43:35,836 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_resume [2021-11-25 18:43:35,836 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_resume [2021-11-25 18:43:35,836 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2021-11-25 18:43:35,836 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2021-11-25 18:43:35,836 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_cleanup [2021-11-25 18:43:35,836 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_cleanup [2021-11-25 18:43:35,836 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_queue_streaming [2021-11-25 18:43:35,837 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_queue_streaming [2021-11-25 18:43:35,837 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_disconnect [2021-11-25 18:43:35,837 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_disconnect [2021-11-25 18:43:35,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:43:35,837 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2021-11-25 18:43:35,837 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2021-11-25 18:43:35,837 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_get_zoom [2021-11-25 18:43:35,838 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_get_zoom [2021-11-25 18:43:35,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 18:43:35,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 18:43:37,240 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:43:37,245 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:43:37,413 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 18:43:38,033 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11812: SUMMARY for call __copy_to_user_nocheck_#t~ret1078#1 := copy_user_generic(__copy_to_user_nocheck_~dst#1.base, __copy_to_user_nocheck_~dst#1.offset, __copy_to_user_nocheck_~src#1.base, __copy_to_user_nocheck_~src#1.offset, __copy_to_user_nocheck_~size#1); srcloc: null [2021-11-25 18:43:38,034 INFO L768 $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; [2021-11-25 18:43:38,034 INFO L768 $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; [2021-11-25 18:43:38,034 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11804: assume 10 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-25 18:43:38,034 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11804: assume !(10 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-25 18:43:38,035 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11808: assume 16 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-25 18:43:38,035 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11808: assume !(16 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-25 18:43:38,035 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11796: assume 4 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-25 18:43:38,035 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11796: assume !(4 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-25 18:43:38,035 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11800: assume 8 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-25 18:43:38,036 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11800: assume !(8 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-25 18:43:38,036 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11833: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1076#1 && __copy_to_user_nocheck_#t~ret1076#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~24#1 := __copy_to_user_nocheck_#t~ret1076#1;havoc __copy_to_user_nocheck_#t~ret1076#1; [2021-11-25 18:43:38,036 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11792: assume 2 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-25 18:43:38,036 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11792: assume !(2 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-25 18:43:38,036 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11805: SUMMARY for call __copy_to_user_nocheck_#t~ret1076#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~18#1 then 1 else 0), 0); srcloc: null [2021-11-25 18:43:38,037 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11809: SUMMARY for call __copy_to_user_nocheck_#t~ret1077#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~18#1 then 1 else 0), 0); srcloc: null [2021-11-25 18:43:38,037 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11797: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-11-25 18:43:38,037 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11859: __copy_to_user_nocheck_~tmp___2~10#1 := __copy_to_user_nocheck_#t~ret1078#1;havoc __copy_to_user_nocheck_#t~ret1078#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); [2021-11-25 18:43:38,037 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11801: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-11-25 18:43:38,037 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11789: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-11-25 18:43:38,038 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11793: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-11-25 18:43:38,038 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume 1 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-25 18:43:38,038 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !(1 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-25 18:43:38,038 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11847: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1077#1 && __copy_to_user_nocheck_#t~ret1077#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~14#1 := __copy_to_user_nocheck_#t~ret1077#1;havoc __copy_to_user_nocheck_#t~ret1077#1; [2021-11-25 18:43:38,038 INFO L768 $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; [2021-11-25 18:43:38,039 INFO L768 $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; [2021-11-25 18:43:41,519 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11700: SUMMARY for call __copy_from_user_nocheck_#t~ret1072#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~17#1 then 1 else 0), 0); srcloc: null [2021-11-25 18:43:41,520 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11692: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-11-25 18:43:41,520 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11696: SUMMARY for call __copy_from_user_nocheck_#t~ret1071#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~17#1 then 1 else 0), 0); srcloc: null [2021-11-25 18:43:41,520 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11729: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1071#1 && __copy_from_user_nocheck_#t~ret1071#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~23#1 := __copy_from_user_nocheck_#t~ret1071#1;havoc __copy_from_user_nocheck_#t~ret1071#1; [2021-11-25 18:43:41,520 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11684: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-11-25 18:43:41,520 INFO L768 $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; [2021-11-25 18:43:41,520 INFO L768 $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; [2021-11-25 18:43:41,520 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11688: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-11-25 18:43:41,521 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11680: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-11-25 18:43:41,521 INFO L768 $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; [2021-11-25 18:43:41,521 INFO L768 $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; [2021-11-25 18:43:41,521 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11756: __copy_from_user_nocheck_~tmp___2~9#1 := __copy_from_user_nocheck_#t~ret1073#1;havoc __copy_from_user_nocheck_#t~ret1073#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); [2021-11-25 18:43:41,521 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume 1 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-25 18:43:41,521 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !(1 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-25 18:43:41,521 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11744: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1072#1 && __copy_from_user_nocheck_#t~ret1072#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~13#1 := __copy_from_user_nocheck_#t~ret1072#1;havoc __copy_from_user_nocheck_#t~ret1072#1; [2021-11-25 18:43:41,522 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11699: assume 16 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-25 18:43:41,522 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11699: assume !(16 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-25 18:43:41,522 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11703: SUMMARY for call __copy_from_user_nocheck_#t~ret1073#1 := copy_user_generic(__copy_from_user_nocheck_~dst#1.base, __copy_from_user_nocheck_~dst#1.offset, __copy_from_user_nocheck_~src#1.base, __copy_from_user_nocheck_~src#1.offset, __copy_from_user_nocheck_~size#1); srcloc: null [2021-11-25 18:43:41,522 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11691: assume 8 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-25 18:43:41,522 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11691: assume !(8 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-25 18:43:41,522 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11695: assume 10 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-25 18:43:41,522 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11695: assume !(10 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-25 18:43:41,522 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11683: assume 2 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-25 18:43:41,523 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11683: assume !(2 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-25 18:43:41,523 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11687: assume 4 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-25 18:43:41,523 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11687: assume !(4 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-25 18:47:45,345 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 18:47:45,446 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:47:49,707 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:47:49,708 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-25 18:47:49,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:47:49 BoogieIcfgContainer [2021-11-25 18:47:49,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:47:49,718 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:47:49,719 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:47:49,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:47:49,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:43:24" (1/3) ... [2021-11-25 18:47:49,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2962d61c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:47:49, skipping insertion in model container [2021-11-25 18:47:49,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:33" (2/3) ... [2021-11-25 18:47:49,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2962d61c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:47:49, skipping insertion in model container [2021-11-25 18:47:49,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:47:49" (3/3) ... [2021-11-25 18:47:49,727 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i [2021-11-25 18:47:49,734 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:47:49,734 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 18:47:49,809 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:47:49,817 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 18:47:49,818 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 18:47:49,901 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) [2021-11-25 18:47:49,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2021-11-25 18:47:49,945 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:47:49,946 INFO L514 BasicCegarLoop]: 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] [2021-11-25 18:47:49,947 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:47:49,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:47:49,954 INFO L85 PathProgramCache]: Analyzing trace with hash 2049443887, now seen corresponding path program 1 times [2021-11-25 18:47:49,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:47:49,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851734888] [2021-11-25 18:47:49,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:47:49,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:47:51,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:47:51,978 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3782 trivial. 0 not checked. [2021-11-25 18:47:51,978 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:47:51,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851734888] [2021-11-25 18:47:51,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851734888] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:47:51,980 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:47:51,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:47:51,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757861052] [2021-11-25 18:47:51,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:47:52,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:47:52,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:47:52,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:47:52,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:47:52,066 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) [2021-11-25 18:47:54,468 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:47:58,660 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:48:03,043 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:48:05,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:48:11,932 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:48:12,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:48:12,419 INFO L93 Difference]: Finished difference Result 6711 states and 9878 transitions. [2021-11-25 18:48:12,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:48:12,424 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 [2021-11-25 18:48:12,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:48:12,503 INFO L225 Difference]: With dead ends: 6711 [2021-11-25 18:48:12,503 INFO L226 Difference]: Without dead ends: 4380 [2021-11-25 18:48:12,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:48:12,532 INFO L933 BasicCegarLoop]: 3461 mSDtfsCounter, 3068 mSDsluCounter, 3345 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 13 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3072 SdHoareTripleChecker+Valid, 6286 SdHoareTripleChecker+Invalid, 1112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2021-11-25 18:48:12,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3072 Valid, 6286 Invalid, 1112 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 1095 Invalid, 4 Unknown, 0 Unchecked, 19.8s Time] [2021-11-25 18:48:12,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4380 states. [2021-11-25 18:48:12,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4380 to 4372. [2021-11-25 18:48:12,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4372 states, 2837 states have (on average 1.3651744800845964) internal successors, (3873), 2873 states have internal predecessors, (3873), 1230 states have call successors, (1230), 304 states have call predecessors, (1230), 304 states have return successors, (1234), 1216 states have call predecessors, (1234), 1230 states have call successors, (1234) [2021-11-25 18:48:12,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4372 states to 4372 states and 6337 transitions. [2021-11-25 18:48:12,973 INFO L78 Accepts]: Start accepts. Automaton has 4372 states and 6337 transitions. Word has length 336 [2021-11-25 18:48:12,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:48:12,977 INFO L470 AbstractCegarLoop]: Abstraction has 4372 states and 6337 transitions. [2021-11-25 18:48:12,977 INFO L471 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) [2021-11-25 18:48:12,978 INFO L276 IsEmpty]: Start isEmpty. Operand 4372 states and 6337 transitions. [2021-11-25 18:48:12,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2021-11-25 18:48:12,994 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:48:12,994 INFO L514 BasicCegarLoop]: 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, 1, 1, 1] [2021-11-25 18:48:12,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:48:12,995 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:48:12,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:48:12,997 INFO L85 PathProgramCache]: Analyzing trace with hash 901773366, now seen corresponding path program 1 times [2021-11-25 18:48:12,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:48:13,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222714298] [2021-11-25 18:48:13,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:48:13,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:48:13,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:48:14,088 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3782 trivial. 0 not checked. [2021-11-25 18:48:14,088 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:48:14,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222714298] [2021-11-25 18:48:14,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222714298] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:48:14,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:48:14,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:48:14,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854371825] [2021-11-25 18:48:14,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:48:14,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:48:14,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:48:14,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:48:14,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:48:14,094 INFO L87 Difference]: Start difference. First operand 4372 states and 6337 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-25 18:48:16,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:48:19,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:48:22,761 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:48:25,633 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:48:29,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:48:29,659 INFO L93 Difference]: Finished difference Result 11105 states and 15972 transitions. [2021-11-25 18:48:29,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:48:29,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 361 [2021-11-25 18:48:29,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:48:29,731 INFO L225 Difference]: With dead ends: 11105 [2021-11-25 18:48:29,731 INFO L226 Difference]: Without dead ends: 6796 [2021-11-25 18:48:29,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:48:29,759 INFO L933 BasicCegarLoop]: 3153 mSDtfsCounter, 1719 mSDsluCounter, 3279 mSDsCounter, 0 mSdLazyCounter, 1092 mSolverCounterSat, 16 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1720 SdHoareTripleChecker+Valid, 5916 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1092 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:48:29,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1720 Valid, 5916 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1092 Invalid, 3 Unknown, 0 Unchecked, 15.0s Time] [2021-11-25 18:48:29,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6796 states. [2021-11-25 18:48:30,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6796 to 6788. [2021-11-25 18:48:30,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6788 states, 4343 states have (on average 1.3467649090490443) internal successors, (5849), 4395 states have internal predecessors, (5849), 1923 states have call successors, (1923), 523 states have call predecessors, (1923), 521 states have return successors, (1928), 1899 states have call predecessors, (1928), 1923 states have call successors, (1928) [2021-11-25 18:48:30,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6788 states to 6788 states and 9700 transitions. [2021-11-25 18:48:30,183 INFO L78 Accepts]: Start accepts. Automaton has 6788 states and 9700 transitions. Word has length 361 [2021-11-25 18:48:30,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:48:30,186 INFO L470 AbstractCegarLoop]: Abstraction has 6788 states and 9700 transitions. [2021-11-25 18:48:30,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-25 18:48:30,189 INFO L276 IsEmpty]: Start isEmpty. Operand 6788 states and 9700 transitions. [2021-11-25 18:48:30,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2021-11-25 18:48:30,203 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:48:30,204 INFO L514 BasicCegarLoop]: 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] [2021-11-25 18:48:30,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:48:30,205 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:48:30,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:48:30,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1000917766, now seen corresponding path program 1 times [2021-11-25 18:48:30,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:48:30,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212247774] [2021-11-25 18:48:30,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:48:30,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:48:30,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:48:31,268 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3782 trivial. 0 not checked. [2021-11-25 18:48:31,269 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:48:31,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212247774] [2021-11-25 18:48:31,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212247774] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:48:31,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:48:31,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:48:31,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807396730] [2021-11-25 18:48:31,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:48:31,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:48:31,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:48:31,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:48:31,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:48:31,273 INFO L87 Difference]: Start difference. First operand 6788 states and 9700 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) [2021-11-25 18:48:33,573 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:48:37,650 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:48:42,543 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:48:44,825 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:48:48,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:48:48,118 INFO L93 Difference]: Finished difference Result 18626 states and 26632 transitions. [2021-11-25 18:48:48,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:48:48,119 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 [2021-11-25 18:48:48,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:48:48,240 INFO L225 Difference]: With dead ends: 18626 [2021-11-25 18:48:48,240 INFO L226 Difference]: Without dead ends: 11901 [2021-11-25 18:48:48,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:48:48,277 INFO L933 BasicCegarLoop]: 3456 mSDtfsCounter, 2762 mSDsluCounter, 3267 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2764 SdHoareTripleChecker+Valid, 6217 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2021-11-25 18:48:48,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2764 Valid, 6217 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1126 Invalid, 3 Unknown, 0 Unchecked, 16.4s Time] [2021-11-25 18:48:48,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11901 states. [2021-11-25 18:48:48,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11901 to 11891. [2021-11-25 18:48:48,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11891 states, 7676 states have (on average 1.350442939030745) internal successors, (10366), 7782 states have internal predecessors, (10366), 3299 states have call successors, (3299), 919 states have call predecessors, (3299), 915 states have return successors, (3312), 3243 states have call predecessors, (3312), 3299 states have call successors, (3312) [2021-11-25 18:48:49,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11891 states to 11891 states and 16977 transitions. [2021-11-25 18:48:49,040 INFO L78 Accepts]: Start accepts. Automaton has 11891 states and 16977 transitions. Word has length 355 [2021-11-25 18:48:49,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:48:49,042 INFO L470 AbstractCegarLoop]: Abstraction has 11891 states and 16977 transitions. [2021-11-25 18:48:49,043 INFO L471 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) [2021-11-25 18:48:49,044 INFO L276 IsEmpty]: Start isEmpty. Operand 11891 states and 16977 transitions. [2021-11-25 18:48:49,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2021-11-25 18:48:49,061 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:48:49,061 INFO L514 BasicCegarLoop]: 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] [2021-11-25 18:48:49,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 18:48:49,062 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:48:49,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:48:49,063 INFO L85 PathProgramCache]: Analyzing trace with hash 856368349, now seen corresponding path program 1 times [2021-11-25 18:48:49,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:48:49,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537460852] [2021-11-25 18:48:49,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:48:49,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:48:49,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:48:49,968 INFO L134 CoverageAnalysis]: Checked inductivity of 3849 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3846 trivial. 0 not checked. [2021-11-25 18:48:49,969 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:48:49,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537460852] [2021-11-25 18:48:49,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537460852] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:48:49,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:48:49,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:48:49,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638248110] [2021-11-25 18:48:49,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:48:49,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:48:49,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:48:49,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:48:49,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:48:49,974 INFO L87 Difference]: Start difference. First operand 11891 states and 16977 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) [2021-11-25 18:48:52,288 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:48:55,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:49:01,685 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:49:06,998 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:49:07,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:49:07,758 INFO L93 Difference]: Finished difference Result 26262 states and 37406 transitions. [2021-11-25 18:49:07,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:49:07,761 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 [2021-11-25 18:49:07,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:49:07,891 INFO L225 Difference]: With dead ends: 26262 [2021-11-25 18:49:07,892 INFO L226 Difference]: Without dead ends: 14434 [2021-11-25 18:49:07,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:49:07,955 INFO L933 BasicCegarLoop]: 3366 mSDtfsCounter, 2612 mSDsluCounter, 3230 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 14 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2614 SdHoareTripleChecker+Valid, 6088 SdHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:49:07,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2614 Valid, 6088 Invalid, 1135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1117 Invalid, 4 Unknown, 0 Unchecked, 17.3s Time] [2021-11-25 18:49:07,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14434 states. [2021-11-25 18:49:08,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14434 to 14429. [2021-11-25 18:49:08,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14429 states, 9341 states have (on average 1.3469649930414302) internal successors, (12582), 9467 states have internal predecessors, (12582), 3946 states have call successors, (3946), 1146 states have call predecessors, (3946), 1141 states have return successors, (3962), 3879 states have call predecessors, (3962), 3946 states have call successors, (3962) [2021-11-25 18:49:08,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14429 states to 14429 states and 20490 transitions. [2021-11-25 18:49:08,778 INFO L78 Accepts]: Start accepts. Automaton has 14429 states and 20490 transitions. Word has length 360 [2021-11-25 18:49:08,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:49:08,780 INFO L470 AbstractCegarLoop]: Abstraction has 14429 states and 20490 transitions. [2021-11-25 18:49:08,780 INFO L471 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) [2021-11-25 18:49:08,780 INFO L276 IsEmpty]: Start isEmpty. Operand 14429 states and 20490 transitions. [2021-11-25 18:49:08,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2021-11-25 18:49:08,796 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:49:08,797 INFO L514 BasicCegarLoop]: 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] [2021-11-25 18:49:08,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 18:49:08,798 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:49:08,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:49:08,799 INFO L85 PathProgramCache]: Analyzing trace with hash 278674923, now seen corresponding path program 1 times [2021-11-25 18:49:08,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:49:08,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413326629] [2021-11-25 18:49:08,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:49:08,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:49:09,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:49:10,175 INFO L134 CoverageAnalysis]: Checked inductivity of 3855 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3846 trivial. 0 not checked. [2021-11-25 18:49:10,176 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:49:10,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413326629] [2021-11-25 18:49:10,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413326629] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:49:10,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:49:10,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:49:10,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715568563] [2021-11-25 18:49:10,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:49:10,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:49:10,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:49:10,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:49:10,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:49:10,180 INFO L87 Difference]: Start difference. First operand 14429 states and 20490 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) [2021-11-25 18:49:12,501 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:49:16,800 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:49:20,859 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:49:23,248 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:49:29,108 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:49:29,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:49:29,404 INFO L93 Difference]: Finished difference Result 30830 states and 43583 transitions. [2021-11-25 18:49:29,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:49:29,405 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 [2021-11-25 18:49:29,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:49:29,520 INFO L225 Difference]: With dead ends: 30830 [2021-11-25 18:49:29,520 INFO L226 Difference]: Without dead ends: 16464 [2021-11-25 18:49:29,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:49:29,592 INFO L933 BasicCegarLoop]: 3712 mSDtfsCounter, 1715 mSDsluCounter, 3308 mSDsCounter, 0 mSdLazyCounter, 1217 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1715 SdHoareTripleChecker+Valid, 6497 SdHoareTripleChecker+Invalid, 1223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1217 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:49:29,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1715 Valid, 6497 Invalid, 1223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1217 Invalid, 4 Unknown, 0 Unchecked, 18.6s Time] [2021-11-25 18:49:29,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16464 states. [2021-11-25 18:49:30,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16464 to 16458. [2021-11-25 18:49:30,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16458 states, 10558 states have (on average 1.335196059859822) internal successors, (14097), 10691 states have internal predecessors, (14097), 4529 states have call successors, (4529), 1374 states have call predecessors, (4529), 1370 states have return successors, (4546), 4456 states have call predecessors, (4546), 4529 states have call successors, (4546) [2021-11-25 18:49:30,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16458 states to 16458 states and 23172 transitions. [2021-11-25 18:49:30,589 INFO L78 Accepts]: Start accepts. Automaton has 16458 states and 23172 transitions. Word has length 377 [2021-11-25 18:49:30,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:49:30,592 INFO L470 AbstractCegarLoop]: Abstraction has 16458 states and 23172 transitions. [2021-11-25 18:49:30,592 INFO L471 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) [2021-11-25 18:49:30,592 INFO L276 IsEmpty]: Start isEmpty. Operand 16458 states and 23172 transitions. [2021-11-25 18:49:30,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2021-11-25 18:49:30,617 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:49:30,618 INFO L514 BasicCegarLoop]: 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] [2021-11-25 18:49:30,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 18:49:30,619 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:49:30,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:49:30,620 INFO L85 PathProgramCache]: Analyzing trace with hash 2119437669, now seen corresponding path program 1 times [2021-11-25 18:49:30,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:49:30,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449235500] [2021-11-25 18:49:30,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:49:30,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:49:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:49:31,517 INFO L134 CoverageAnalysis]: Checked inductivity of 4349 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4340 trivial. 0 not checked. [2021-11-25 18:49:31,518 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:49:31,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449235500] [2021-11-25 18:49:31,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449235500] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:49:31,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:49:31,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:49:31,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474952479] [2021-11-25 18:49:31,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:49:31,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:49:31,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:49:31,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:49:31,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:49:31,521 INFO L87 Difference]: Start difference. First operand 16458 states and 23172 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) [2021-11-25 18:49:33,821 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:49:42,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:49:45,004 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:49:47,865 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:49:50,879 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:49:52,600 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:49:55,858 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:50:08,116 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:50:08,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:50:08,576 INFO L93 Difference]: Finished difference Result 61879 states and 87326 transitions. [2021-11-25 18:50:08,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:50:08,577 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 [2021-11-25 18:50:08,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:50:08,848 INFO L225 Difference]: With dead ends: 61879 [2021-11-25 18:50:08,849 INFO L226 Difference]: Without dead ends: 46018 [2021-11-25 18:50:08,903 INFO L932 BasicCegarLoop]: 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 [2021-11-25 18:50:08,905 INFO L933 BasicCegarLoop]: 4490 mSDtfsCounter, 9802 mSDsluCounter, 8350 mSDsCounter, 0 mSdLazyCounter, 1852 mSolverCounterSat, 2475 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9806 SdHoareTripleChecker+Valid, 11647 SdHoareTripleChecker+Invalid, 4333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2475 IncrementalHoareTripleChecker+Valid, 1852 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.4s IncrementalHoareTripleChecker+Time [2021-11-25 18:50:08,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9806 Valid, 11647 Invalid, 4333 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2475 Valid, 1852 Invalid, 6 Unknown, 0 Unchecked, 35.4s Time] [2021-11-25 18:50:08,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46018 states. [2021-11-25 18:50:11,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46018 to 45976. [2021-11-25 18:50:11,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45976 states, 29632 states have (on average 1.3428725701943844) internal successors, (39792), 29975 states have internal predecessors, (39792), 12521 states have call successors, (12521), 3834 states have call predecessors, (12521), 3822 states have return successors, (12574), 12340 states have call predecessors, (12574), 12521 states have call successors, (12574) [2021-11-25 18:50:12,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45976 states to 45976 states and 64887 transitions. [2021-11-25 18:50:12,332 INFO L78 Accepts]: Start accepts. Automaton has 45976 states and 64887 transitions. Word has length 434 [2021-11-25 18:50:12,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:50:12,334 INFO L470 AbstractCegarLoop]: Abstraction has 45976 states and 64887 transitions. [2021-11-25 18:50:12,334 INFO L471 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) [2021-11-25 18:50:12,334 INFO L276 IsEmpty]: Start isEmpty. Operand 45976 states and 64887 transitions. [2021-11-25 18:50:12,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2021-11-25 18:50:12,381 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:50:12,382 INFO L514 BasicCegarLoop]: 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] [2021-11-25 18:50:12,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 18:50:12,383 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:50:12,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:50:12,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1173510198, now seen corresponding path program 1 times [2021-11-25 18:50:12,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:50:12,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200615539] [2021-11-25 18:50:12,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:50:12,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:50:13,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:50:13,619 INFO L134 CoverageAnalysis]: Checked inductivity of 4510 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4492 trivial. 0 not checked. [2021-11-25 18:50:13,620 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:50:13,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200615539] [2021-11-25 18:50:13,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200615539] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:50:13,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:50:13,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:50:13,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505389014] [2021-11-25 18:50:13,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:50:13,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:50:13,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:50:13,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:50:13,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:50:13,624 INFO L87 Difference]: Start difference. First operand 45976 states and 64887 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) [2021-11-25 18:50:15,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:50:18,453 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:50:22,283 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:50:25,641 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:50:27,045 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:50:30,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:50:35,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:50:37,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:50:37,447 INFO L93 Difference]: Finished difference Result 106187 states and 149935 transitions. [2021-11-25 18:50:37,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:50:37,448 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 [2021-11-25 18:50:37,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:50:37,804 INFO L225 Difference]: With dead ends: 106187 [2021-11-25 18:50:37,804 INFO L226 Difference]: Without dead ends: 60808 [2021-11-25 18:50:37,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:50:37,964 INFO L933 BasicCegarLoop]: 5302 mSDtfsCounter, 3021 mSDsluCounter, 3272 mSDsCounter, 0 mSdLazyCounter, 1581 mSolverCounterSat, 8 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3024 SdHoareTripleChecker+Valid, 8056 SdHoareTripleChecker+Invalid, 1593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1581 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:50:37,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3024 Valid, 8056 Invalid, 1593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1581 Invalid, 4 Unknown, 0 Unchecked, 21.6s Time] [2021-11-25 18:50:38,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60808 states. [2021-11-25 18:50:41,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60808 to 60786. [2021-11-25 18:50:41,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60786 states, 39196 states have (on average 1.3422287988570263) internal successors, (52610), 39659 states have internal predecessors, (52610), 16529 states have call successors, (16529), 5082 states have call predecessors, (16529), 5060 states have return successors, (16606), 16276 states have call predecessors, (16606), 16529 states have call successors, (16606) [2021-11-25 18:50:41,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60786 states to 60786 states and 85745 transitions. [2021-11-25 18:50:41,952 INFO L78 Accepts]: Start accepts. Automaton has 60786 states and 85745 transitions. Word has length 446 [2021-11-25 18:50:41,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:50:41,953 INFO L470 AbstractCegarLoop]: Abstraction has 60786 states and 85745 transitions. [2021-11-25 18:50:41,954 INFO L471 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) [2021-11-25 18:50:41,954 INFO L276 IsEmpty]: Start isEmpty. Operand 60786 states and 85745 transitions. [2021-11-25 18:50:41,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2021-11-25 18:50:41,994 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:50:41,995 INFO L514 BasicCegarLoop]: 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, 1] [2021-11-25 18:50:41,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 18:50:41,995 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:50:41,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:50:41,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1781069145, now seen corresponding path program 1 times [2021-11-25 18:50:41,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:50:41,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960469958] [2021-11-25 18:50:41,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:50:41,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:50:42,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:50:43,233 INFO L134 CoverageAnalysis]: Checked inductivity of 4353 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4341 trivial. 0 not checked. [2021-11-25 18:50:43,234 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:50:43,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960469958] [2021-11-25 18:50:43,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960469958] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:50:43,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:50:43,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:50:43,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517811839] [2021-11-25 18:50:43,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:50:43,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:50:43,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:50:43,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:50:43,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:50:43,238 INFO L87 Difference]: Start difference. First operand 60786 states and 85745 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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) [2021-11-25 18:50:45,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:50:55,018 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:50:57,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:51:02,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:51:02,886 INFO L93 Difference]: Finished difference Result 137904 states and 193930 transitions. [2021-11-25 18:51:02,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:51:02,887 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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 457 [2021-11-25 18:51:02,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:51:03,284 INFO L225 Difference]: With dead ends: 137904 [2021-11-25 18:51:03,285 INFO L226 Difference]: Without dead ends: 77715 [2021-11-25 18:51:03,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:51:03,463 INFO L933 BasicCegarLoop]: 4501 mSDtfsCounter, 2834 mSDsluCounter, 2793 mSDsCounter, 0 mSdLazyCounter, 1316 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2834 SdHoareTripleChecker+Valid, 6866 SdHoareTripleChecker+Invalid, 1328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1316 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:51:03,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2834 Valid, 6866 Invalid, 1328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1316 Invalid, 2 Unknown, 0 Unchecked, 17.0s Time] [2021-11-25 18:51:03,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77715 states. [2021-11-25 18:51:06,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77715 to 77680. [2021-11-25 18:51:06,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77680 states, 49792 states have (on average 1.3349132390745502) internal successors, (66468), 50406 states have internal predecessors, (66468), 21124 states have call successors, (21124), 6789 states have call predecessors, (21124), 6763 states have return successors, (21213), 20797 states have call predecessors, (21213), 21124 states have call successors, (21213) [2021-11-25 18:51:07,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77680 states to 77680 states and 108805 transitions. [2021-11-25 18:51:07,575 INFO L78 Accepts]: Start accepts. Automaton has 77680 states and 108805 transitions. Word has length 457 [2021-11-25 18:51:07,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:51:07,576 INFO L470 AbstractCegarLoop]: Abstraction has 77680 states and 108805 transitions. [2021-11-25 18:51:07,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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) [2021-11-25 18:51:07,577 INFO L276 IsEmpty]: Start isEmpty. Operand 77680 states and 108805 transitions. [2021-11-25 18:51:07,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2021-11-25 18:51:07,614 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:51:07,615 INFO L514 BasicCegarLoop]: 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] [2021-11-25 18:51:07,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 18:51:07,615 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:51:07,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:51:07,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1475936292, now seen corresponding path program 1 times [2021-11-25 18:51:07,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:51:07,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774364321] [2021-11-25 18:51:07,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:51:07,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:51:08,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:51:08,759 INFO L134 CoverageAnalysis]: Checked inductivity of 4350 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4343 trivial. 0 not checked. [2021-11-25 18:51:08,760 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:51:08,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774364321] [2021-11-25 18:51:08,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774364321] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:51:08,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:51:08,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:51:08,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888501376] [2021-11-25 18:51:08,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:51:08,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:51:08,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:51:08,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:51:08,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:51:08,764 INFO L87 Difference]: Start difference. First operand 77680 states and 108805 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) [2021-11-25 18:51:10,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:51:14,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:51:17,043 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:51:22,885 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:51:28,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:51:33,609 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:51:34,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:51:34,932 INFO L93 Difference]: Finished difference Result 185929 states and 260543 transitions. [2021-11-25 18:51:34,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:51:34,933 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 [2021-11-25 18:51:34,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:51:35,422 INFO L225 Difference]: With dead ends: 185929 [2021-11-25 18:51:35,422 INFO L226 Difference]: Without dead ends: 108846 [2021-11-25 18:51:35,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:51:35,598 INFO L933 BasicCegarLoop]: 5114 mSDtfsCounter, 2782 mSDsluCounter, 3256 mSDsCounter, 0 mSdLazyCounter, 1539 mSolverCounterSat, 9 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2784 SdHoareTripleChecker+Valid, 7864 SdHoareTripleChecker+Invalid, 1553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1539 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.4s IncrementalHoareTripleChecker+Time [2021-11-25 18:51:35,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2784 Valid, 7864 Invalid, 1553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1539 Invalid, 5 Unknown, 0 Unchecked, 22.4s Time] [2021-11-25 18:51:35,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108846 states. [2021-11-25 18:51:40,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108846 to 108804. [2021-11-25 18:51:40,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108804 states, 70006 states have (on average 1.3357997885895494) internal successors, (93514), 70904 states have internal predecessors, (93514), 29290 states have call successors, (29290), 9547 states have call predecessors, (29290), 9507 states have return successors, (29415), 28785 states have call predecessors, (29415), 29290 states have call successors, (29415) [2021-11-25 18:51:40,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108804 states to 108804 states and 152219 transitions. [2021-11-25 18:51:40,895 INFO L78 Accepts]: Start accepts. Automaton has 108804 states and 152219 transitions. Word has length 454 [2021-11-25 18:51:40,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:51:40,897 INFO L470 AbstractCegarLoop]: Abstraction has 108804 states and 152219 transitions. [2021-11-25 18:51:40,897 INFO L471 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) [2021-11-25 18:51:40,897 INFO L276 IsEmpty]: Start isEmpty. Operand 108804 states and 152219 transitions. [2021-11-25 18:51:40,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2021-11-25 18:51:40,978 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:51:40,978 INFO L514 BasicCegarLoop]: 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] [2021-11-25 18:51:40,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 18:51:40,979 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:51:40,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:51:40,980 INFO L85 PathProgramCache]: Analyzing trace with hash -694661052, now seen corresponding path program 1 times [2021-11-25 18:51:40,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:51:40,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180888975] [2021-11-25 18:51:40,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:51:40,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:51:41,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:51:43,061 INFO L134 CoverageAnalysis]: Checked inductivity of 4515 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4515 trivial. 0 not checked. [2021-11-25 18:51:43,062 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:51:43,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180888975] [2021-11-25 18:51:43,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180888975] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:51:43,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:51:43,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 18:51:43,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760924563] [2021-11-25 18:51:43,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:51:43,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 18:51:43,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:51:43,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 18:51:43,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 18:51:43,066 INFO L87 Difference]: Start difference. First operand 108804 states and 152219 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) [2021-11-25 18:51:45,376 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:51:51,494 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:51:54,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:52:11,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:52:20,823 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:52:24,238 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:52:30,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:52:43,247 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:52:45,399 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:52:45,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:52:45,899 INFO L93 Difference]: Finished difference Result 210957 states and 297303 transitions. [2021-11-25 18:52:45,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 18:52:45,900 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 493 [2021-11-25 18:52:45,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:52:47,469 INFO L225 Difference]: With dead ends: 210957 [2021-11-25 18:52:47,469 INFO L226 Difference]: Without dead ends: 210955 [2021-11-25 18:52:47,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-25 18:52:47,548 INFO L933 BasicCegarLoop]: 4871 mSDtfsCounter, 2972 mSDsluCounter, 19374 mSDsCounter, 0 mSdLazyCounter, 5504 mSolverCounterSat, 6 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2973 SdHoareTripleChecker+Valid, 20949 SdHoareTripleChecker+Invalid, 5516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 5504 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:52:47,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2973 Valid, 20949 Invalid, 5516 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 5504 Invalid, 6 Unknown, 0 Unchecked, 54.6s Time] [2021-11-25 18:52:47,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210955 states. [2021-11-25 18:52:58,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210955 to 210473. [2021-11-25 18:52:59,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210473 states, 136311 states have (on average 1.339627762983178) internal successors, (182606), 138225 states have internal predecessors, (182606), 56373 states have call successors, (56373), 18256 states have call predecessors, (56373), 17788 states have return successors, (57111), 54808 states have call predecessors, (57111), 56373 states have call successors, (57111) [2021-11-25 18:53:00,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210473 states to 210473 states and 296090 transitions. [2021-11-25 18:53:00,836 INFO L78 Accepts]: Start accepts. Automaton has 210473 states and 296090 transitions. Word has length 493 [2021-11-25 18:53:00,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:53:00,839 INFO L470 AbstractCegarLoop]: Abstraction has 210473 states and 296090 transitions. [2021-11-25 18:53:00,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-11-25 18:53:00,840 INFO L276 IsEmpty]: Start isEmpty. Operand 210473 states and 296090 transitions. [2021-11-25 18:53:01,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2021-11-25 18:53:01,021 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:53:01,022 INFO L514 BasicCegarLoop]: trace histogram [38, 32, 32, 32, 32, 32, 32, 13, 13, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:53:01,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-25 18:53:01,023 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:53:01,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:53:01,024 INFO L85 PathProgramCache]: Analyzing trace with hash 621513807, now seen corresponding path program 1 times [2021-11-25 18:53:01,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:53:01,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516098440] [2021-11-25 18:53:01,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:53:01,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:53:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:53:02,059 INFO L134 CoverageAnalysis]: Checked inductivity of 4679 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 4657 trivial. 0 not checked. [2021-11-25 18:53:02,059 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:53:02,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516098440] [2021-11-25 18:53:02,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516098440] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:53:02,060 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:53:02,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:53:02,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861200978] [2021-11-25 18:53:02,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:53:02,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:53:02,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:53:02,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:53:02,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:53:02,064 INFO L87 Difference]: Start difference. First operand 210473 states and 296090 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 3 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2021-11-25 18:53:04,376 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:53:10,946 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []