./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84801748-0dbf-4248-b9ea-7a899c782236/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84801748-0dbf-4248-b9ea-7a899c782236/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84801748-0dbf-4248-b9ea-7a899c782236/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84801748-0dbf-4248-b9ea-7a899c782236/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84801748-0dbf-4248-b9ea-7a899c782236/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84801748-0dbf-4248-b9ea-7a899c782236/bin/utaipan-g80aRyZoba --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 20ba2e9cc2ef279759182db9390a81601d500e95b3e9fdb04cf7f5f978bf9c45 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:58:29,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:58:29,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:58:29,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:58:29,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:58:29,842 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:58:29,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:58:29,852 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:58:29,854 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:58:29,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:58:29,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:58:29,864 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:58:29,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:58:29,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:58:29,866 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:58:29,867 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:58:29,868 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:58:29,869 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:58:29,870 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:58:29,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:58:29,874 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:58:29,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:58:29,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:58:29,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:58:29,896 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:58:29,897 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:58:29,897 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:58:29,898 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:58:29,898 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:58:29,899 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:58:29,900 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:58:29,901 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:58:29,901 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:58:29,902 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:58:29,903 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:58:29,903 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:58:29,904 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:58:29,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:58:29,905 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:58:29,906 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:58:29,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:58:29,916 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84801748-0dbf-4248-b9ea-7a899c782236/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:58:29,960 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:58:29,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:58:29,961 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:58:29,962 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:58:29,963 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:58:29,963 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:58:29,963 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:58:29,963 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:58:29,963 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:58:29,964 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:58:29,965 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:58:29,965 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:58:29,965 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:58:29,966 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:58:29,966 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:58:29,966 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:58:29,966 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:58:29,966 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:58:29,967 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:58:29,967 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:58:29,968 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:58:29,968 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:58:29,968 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:58:29,968 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:58:29,968 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:58:29,969 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:58:29,969 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:58:29,969 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:58:29,969 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:58:29,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:58:29,970 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:58:29,970 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:58:29,970 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:58:29,971 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:58:29,971 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:58:29,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:58:29,971 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:58:29,971 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:58:29,972 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84801748-0dbf-4248-b9ea-7a899c782236/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84801748-0dbf-4248-b9ea-7a899c782236/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20ba2e9cc2ef279759182db9390a81601d500e95b3e9fdb04cf7f5f978bf9c45 [2022-11-22 01:58:30,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:58:30,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:58:30,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:58:30,280 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:58:30,281 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:58:30,282 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84801748-0dbf-4248-b9ea-7a899c782236/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i [2022-11-22 01:58:33,354 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:58:34,273 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:58:34,273 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84801748-0dbf-4248-b9ea-7a899c782236/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i [2022-11-22 01:58:34,360 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84801748-0dbf-4248-b9ea-7a899c782236/bin/utaipan-g80aRyZoba/data/2dc293156/9843c841b0e3497dae4e2ca1fb957c4b/FLAGa2636d583 [2022-11-22 01:58:34,382 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84801748-0dbf-4248-b9ea-7a899c782236/bin/utaipan-g80aRyZoba/data/2dc293156/9843c841b0e3497dae4e2ca1fb957c4b [2022-11-22 01:58:34,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:58:34,391 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:58:34,392 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:58:34,392 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:58:34,396 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:58:34,397 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:58:34" (1/1) ... [2022-11-22 01:58:34,399 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ed82ad7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:34, skipping insertion in model container [2022-11-22 01:58:34,399 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:58:34" (1/1) ... [2022-11-22 01:58:34,407 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:58:34,746 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:58:41,983 WARN L237 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_84801748-0dbf-4248-b9ea-7a899c782236/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[885586,885599] [2022-11-22 01:58:41,987 WARN L237 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_84801748-0dbf-4248-b9ea-7a899c782236/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[885733,885746] [2022-11-22 01:58:41,987 WARN L237 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_84801748-0dbf-4248-b9ea-7a899c782236/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[885872,885885] [2022-11-22 01:58:41,988 WARN L237 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_84801748-0dbf-4248-b9ea-7a899c782236/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[886030,886043] [2022-11-22 01:58:42,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:58:42,230 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:58:43,228 WARN L237 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_84801748-0dbf-4248-b9ea-7a899c782236/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[885586,885599] [2022-11-22 01:58:43,229 WARN L237 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_84801748-0dbf-4248-b9ea-7a899c782236/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[885733,885746] [2022-11-22 01:58:43,230 WARN L237 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_84801748-0dbf-4248-b9ea-7a899c782236/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[885872,885885] [2022-11-22 01:58:43,231 WARN L237 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_84801748-0dbf-4248-b9ea-7a899c782236/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[886030,886043] [2022-11-22 01:58:43,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:58:43,567 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:58:43,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:43 WrapperNode [2022-11-22 01:58:43,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:58:43,569 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:58:43,570 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:58:43,570 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:58:43,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:43" (1/1) ... [2022-11-22 01:58:43,905 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:43" (1/1) ... [2022-11-22 01:58:45,163 INFO L138 Inliner]: procedures = 581, calls = 10819, calls flagged for inlining = 348, calls inlined = 340, statements flattened = 25701 [2022-11-22 01:58:45,164 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:58:45,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:58:45,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:58:45,166 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:58:45,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:43" (1/1) ... [2022-11-22 01:58:45,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:43" (1/1) ... [2022-11-22 01:58:45,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:43" (1/1) ... [2022-11-22 01:58:45,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:43" (1/1) ... [2022-11-22 01:58:45,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:43" (1/1) ... [2022-11-22 01:58:45,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:43" (1/1) ... [2022-11-22 01:58:46,071 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:43" (1/1) ... [2022-11-22 01:58:46,104 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:43" (1/1) ... [2022-11-22 01:58:46,310 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:58:46,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:58:46,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:58:46,312 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:58:46,313 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:43" (1/1) ... [2022-11-22 01:58:46,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:58:46,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84801748-0dbf-4248-b9ea-7a899c782236/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:58:46,345 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84801748-0dbf-4248-b9ea-7a899c782236/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:58:46,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84801748-0dbf-4248-b9ea-7a899c782236/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:58:46,395 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_check_bssid [2022-11-22 01:58:46,395 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_check_bssid [2022-11-22 01:58:46,395 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_query_rf_reg [2022-11-22 01:58:46,396 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_query_rf_reg [2022-11-22 01:58:46,396 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_sw_led_on [2022-11-22 01:58:46,396 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_sw_led_on [2022-11-22 01:58:46,396 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-22 01:58:46,396 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-22 01:58:46,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:58:46,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:58:46,397 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_lc_calibrate [2022-11-22 01:58:46,397 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_lc_calibrate [2022-11-22 01:58:46,397 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8188e_config_bb_reg [2022-11-22 01:58:46,397 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8188e_config_bb_reg [2022-11-22 01:58:46,397 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_word [2022-11-22 01:58:46,397 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_word [2022-11-22 01:58:46,398 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_fwlps_enter [2022-11-22 01:58:46,398 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_fwlps_enter [2022-11-22 01:58:46,398 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_phy_path_adda_on [2022-11-22 01:58:46,399 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_phy_path_adda_on [2022-11-22 01:58:46,399 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_signal_scale_mapping [2022-11-22 01:58:46,399 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_signal_scale_mapping [2022-11-22 01:58:46,400 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_byte [2022-11-22 01:58:46,400 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_byte [2022-11-22 01:58:46,400 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 01:58:46,400 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 01:58:46,400 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-22 01:58:46,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-22 01:58:46,401 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 01:58:46,401 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 01:58:46,401 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_query_bb_reg [2022-11-22 01:58:46,401 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_query_bb_reg [2022-11-22 01:58:46,401 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_suspend [2022-11-22 01:58:46,401 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_suspend [2022-11-22 01:58:46,402 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_enable_interrupt [2022-11-22 01:58:46,402 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_enable_interrupt [2022-11-22 01:58:46,402 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_sw_led_off [2022-11-22 01:58:46,402 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_sw_led_off [2022-11-22 01:58:46,402 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-22 01:58:46,402 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_dword [2022-11-22 01:58:46,402 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_dword [2022-11-22 01:58:46,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 01:58:46,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 01:58:46,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rtl88ee_driver_exit_9_2 [2022-11-22 01:58:46,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rtl88ee_driver_exit_9_2 [2022-11-22 01:58:46,404 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_config_rf_with_headerfile [2022-11-22 01:58:46,404 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_config_rf_with_headerfile [2022-11-22 01:58:46,404 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_firmware_selfreset [2022-11-22 01:58:46,404 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_firmware_selfreset [2022-11-22 01:58:46,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 01:58:46,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 01:58:46,404 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-22 01:58:46,405 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-22 01:58:46,405 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_get_desc [2022-11-22 01:58:46,405 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_get_desc [2022-11-22 01:58:46,405 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_beacon_interval [2022-11-22 01:58:46,405 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_beacon_interval [2022-11-22 01:58:46,405 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_disable_interrupt [2022-11-22 01:58:46,405 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_disable_interrupt [2022-11-22 01:58:46,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:58:46,406 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_resume [2022-11-22 01:58:46,406 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_resume [2022-11-22 01:58:46,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-11-22 01:58:46,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-11-22 01:58:46,406 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_update_channel_access_setting [2022-11-22 01:58:46,406 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_update_channel_access_setting [2022-11-22 01:58:46,407 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_update_rx_idle_ant [2022-11-22 01:58:46,407 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_update_rx_idle_ant [2022-11-22 01:58:46,407 INFO L130 BoogieDeclarations]: Found specification of procedure get_rf_type [2022-11-22 01:58:46,407 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rf_type [2022-11-22 01:58:46,407 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-22 01:58:46,408 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-22 01:58:46,408 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-22 01:58:46,408 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-22 01:58:46,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 01:58:46,409 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_has_protected [2022-11-22 01:58:46,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_has_protected [2022-11-22 01:58:46,409 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 01:58:46,409 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 01:58:46,409 INFO L130 BoogieDeclarations]: Found specification of procedure is_hal_stop [2022-11-22 01:58:46,409 INFO L138 BoogieDeclarations]: Found implementation of procedure is_hal_stop [2022-11-22 01:58:46,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:58:46,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 01:58:46,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 01:58:46,410 INFO L130 BoogieDeclarations]: Found specification of procedure rf_serial_read [2022-11-22 01:58:46,410 INFO L138 BoogieDeclarations]: Found implementation of procedure rf_serial_read [2022-11-22 01:58:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:58:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_update_interrupt_mask [2022-11-22 01:58:46,411 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_update_interrupt_mask [2022-11-22 01:58:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-22 01:58:46,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-22 01:58:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 01:58:46,412 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 01:58:46,412 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_rf_reg [2022-11-22 01:58:46,412 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_rf_reg [2022-11-22 01:58:46,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 01:58:46,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 01:58:46,413 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-22 01:58:46,413 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-22 01:58:46,413 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2022-11-22 01:58:46,413 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2022-11-22 01:58:46,413 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_card_disable [2022-11-22 01:58:46,413 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_card_disable [2022-11-22 01:58:46,414 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_check_fw_read_last_h2c [2022-11-22 01:58:46,415 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_check_fw_read_last_h2c [2022-11-22 01:58:46,418 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_beacon [2022-11-22 01:58:46,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_beacon [2022-11-22 01:58:46,419 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2022-11-22 01:58:46,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2022-11-22 01:58:46,420 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_led_control [2022-11-22 01:58:46,420 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_led_control [2022-11-22 01:58:46,420 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_beacon_related_registers [2022-11-22 01:58:46,421 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_beacon_related_registers [2022-11-22 01:58:46,421 INFO L130 BoogieDeclarations]: Found specification of procedure save_adda_reg [2022-11-22 01:58:46,426 INFO L138 BoogieDeclarations]: Found implementation of procedure save_adda_reg [2022-11-22 01:58:46,426 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2022-11-22 01:58:46,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2022-11-22 01:58:46,426 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-11-22 01:58:46,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-11-22 01:58:46,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:58:46,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 01:58:46,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 01:58:46,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-11-22 01:58:46,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-11-22 01:58:46,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-22 01:58:46,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-22 01:58:46,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2022-11-22 01:58:46,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2022-11-22 01:58:46,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-22 01:58:46,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-22 01:58:46,427 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_hw_reg [2022-11-22 01:58:46,427 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_hw_reg [2022-11-22 01:58:46,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:58:46,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 01:58:46,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 01:58:46,429 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 01:58:46,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 01:58:46,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:58:46,430 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-22 01:58:46,430 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_rfpath_switch [2022-11-22 01:58:46,430 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_rfpath_switch [2022-11-22 01:58:46,430 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:58:46,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:58:46,430 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:58:46,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:58:46,430 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_update_hal_rate_tbl [2022-11-22 01:58:46,430 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_update_hal_rate_tbl [2022-11-22 01:58:46,431 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_txpower_level [2022-11-22 01:58:46,431 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_txpower_level [2022-11-22 01:58:46,431 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-22 01:58:46,432 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-22 01:58:46,432 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_bb_reg [2022-11-22 01:58:46,432 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_bb_reg [2022-11-22 01:58:46,432 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_qos [2022-11-22 01:58:46,432 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_qos [2022-11-22 01:58:46,432 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_iq_calibrate [2022-11-22 01:58:46,432 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_iq_calibrate [2022-11-22 01:58:46,432 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_cam_add_one_entry [2022-11-22 01:58:46,433 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_cam_add_one_entry [2022-11-22 01:58:46,433 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_check_txpower_tracking [2022-11-22 01:58:46,433 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_check_txpower_tracking [2022-11-22 01:58:46,433 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_init_led [2022-11-22 01:58:46,433 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_init_led [2022-11-22 01:58:46,433 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_txpower_track_adjust [2022-11-22 01:58:46,433 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_txpower_track_adjust [2022-11-22 01:58:46,434 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_poweroff_adapter [2022-11-22 01:58:46,434 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_poweroff_adapter [2022-11-22 01:58:46,434 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_init_edca_turbo [2022-11-22 01:58:46,434 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_init_edca_turbo [2022-11-22 01:58:46,434 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_bcn_ctrl_reg [2022-11-22 01:58:46,434 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_bcn_ctrl_reg [2022-11-22 01:58:46,434 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_init_sw_leds [2022-11-22 01:58:46,434 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_init_sw_leds [2022-11-22 01:58:46,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:58:46,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:58:46,435 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-22 01:58:46,435 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-22 01:58:46,435 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88_hal_pwrseqcmdparsing [2022-11-22 01:58:46,435 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88_hal_pwrseqcmdparsing [2022-11-22 01:58:46,435 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_enable_hw_security_config [2022-11-22 01:58:46,435 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_enable_hw_security_config [2022-11-22 01:58:46,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:58:46,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:58:46,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 01:58:46,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 01:58:46,436 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_DA [2022-11-22 01:58:46,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_DA [2022-11-22 01:58:46,436 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_rfreg [2022-11-22 01:58:46,436 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_rfreg [2022-11-22 01:58:46,436 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-22 01:58:46,436 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-22 01:58:46,436 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2022-11-22 01:58:46,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2022-11-22 01:58:46,437 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-22 01:58:46,437 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-22 01:58:46,437 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_set_iqk_matrix [2022-11-22 01:58:46,437 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_set_iqk_matrix [2022-11-22 01:58:46,437 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_chk_tx_track [2022-11-22 01:58:46,437 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_chk_tx_track [2022-11-22 01:58:46,437 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_data_qos [2022-11-22 01:58:46,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_data_qos [2022-11-22 01:58:46,437 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_stop_tx_beacon [2022-11-22 01:58:46,438 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_stop_tx_beacon [2022-11-22 01:58:46,438 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_byte [2022-11-22 01:58:46,438 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_byte [2022-11-22 01:58:46,438 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_word [2022-11-22 01:58:46,438 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_word [2022-11-22 01:58:46,438 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-22 01:58:46,438 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-22 01:58:46,438 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_llt_write [2022-11-22 01:58:46,438 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_llt_write [2022-11-22 01:58:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 01:58:46,439 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 01:58:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_suspend [2022-11-22 01:58:46,439 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_suspend [2022-11-22 01:58:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_watchdog [2022-11-22 01:58:46,439 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_watchdog [2022-11-22 01:58:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-22 01:58:46,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-22 01:58:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_bw_mode [2022-11-22 01:58:46,440 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_bw_mode [2022-11-22 01:58:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_fast_ant_training [2022-11-22 01:58:46,440 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_fast_ant_training [2022-11-22 01:58:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure sim_comp [2022-11-22 01:58:46,440 INFO L138 BoogieDeclarations]: Found implementation of procedure sim_comp [2022-11-22 01:58:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_deinit_sw_vars [2022-11-22 01:58:46,440 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_deinit_sw_vars [2022-11-22 01:58:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_tx_polling [2022-11-22 01:58:46,440 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_tx_polling [2022-11-22 01:58:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:58:46,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2022-11-22 01:58:46,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2022-11-22 01:58:46,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:58:46,445 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_phy_pi_mode_switch [2022-11-22 01:58:46,445 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_phy_pi_mode_switch [2022-11-22 01:58:46,445 INFO L130 BoogieDeclarations]: Found specification of procedure cal_bit_shift [2022-11-22 01:58:46,446 INFO L138 BoogieDeclarations]: Found implementation of procedure cal_bit_shift [2022-11-22 01:58:46,446 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_enable_fw_download [2022-11-22 01:58:46,446 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_enable_fw_download [2022-11-22 01:58:46,446 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_ctl [2022-11-22 01:58:46,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_ctl [2022-11-22 01:58:46,447 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2022-11-22 01:58:46,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2022-11-22 01:58:46,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:58:46,448 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-22 01:58:46,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-22 01:58:46,448 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-22 01:58:46,449 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-22 01:58:46,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-22 01:58:46,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-22 01:58:46,449 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_fw_ps_rf_on [2022-11-22 01:58:46,449 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_fw_ps_rf_on [2022-11-22 01:58:46,449 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-22 01:58:46,449 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-22 01:58:46,449 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count___6 [2022-11-22 01:58:46,449 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count___6 [2022-11-22 01:58:46,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 01:58:46,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 01:58:46,450 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_hw_init [2022-11-22 01:58:46,450 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_hw_init [2022-11-22 01:58:46,450 INFO L130 BoogieDeclarations]: Found specification of procedure check_cond [2022-11-22 01:58:46,450 INFO L138 BoogieDeclarations]: Found implementation of procedure check_cond [2022-11-22 01:58:46,450 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_get_rfreg [2022-11-22 01:58:46,450 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_get_rfreg [2022-11-22 01:58:46,450 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_initial_gain_min_pwdb [2022-11-22 01:58:46,450 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_initial_gain_min_pwdb [2022-11-22 01:58:46,450 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_phy_iq_calibrate [2022-11-22 01:58:46,451 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_phy_iq_calibrate [2022-11-22 01:58:46,451 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2022-11-22 01:58:46,451 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2022-11-22 01:58:46,451 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_resume [2022-11-22 01:58:46,451 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_resume [2022-11-22 01:58:46,451 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2022-11-22 01:58:46,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2022-11-22 01:58:46,451 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_get_hw_reg [2022-11-22 01:58:46,451 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_get_hw_reg [2022-11-22 01:58:46,451 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_phy_scan_operation_backup [2022-11-22 01:58:46,452 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_phy_scan_operation_backup [2022-11-22 01:58:46,452 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-22 01:58:46,452 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-22 01:58:46,452 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-22 01:58:46,452 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-22 01:58:46,452 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_fill_h2c_cmd [2022-11-22 01:58:46,452 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_fill_h2c_cmd [2022-11-22 01:58:46,452 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_fw_page_write [2022-11-22 01:58:46,452 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_fw_page_write [2022-11-22 01:58:46,452 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_query_rxpwrpercentage [2022-11-22 01:58:46,453 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_query_rxpwrpercentage [2022-11-22 01:58:46,453 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_update_tx_ant [2022-11-22 01:58:46,453 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_update_tx_ant [2022-11-22 01:58:46,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:58:46,453 INFO L130 BoogieDeclarations]: Found specification of procedure reload_adda [2022-11-22 01:58:46,453 INFO L138 BoogieDeclarations]: Found implementation of procedure reload_adda [2022-11-22 01:58:46,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:58:46,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:58:46,453 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_get_bbreg [2022-11-22 01:58:46,453 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_get_bbreg [2022-11-22 01:58:46,454 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_read_eeprom_info [2022-11-22 01:58:46,454 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_read_eeprom_info [2022-11-22 01:58:46,454 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_fw_clock_off [2022-11-22 01:58:46,454 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_fw_clock_off [2022-11-22 01:58:46,454 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_bbreg [2022-11-22 01:58:46,454 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_bbreg [2022-11-22 01:58:46,454 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-22 01:58:46,454 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-22 01:58:46,454 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_resume_tx_beacon [2022-11-22 01:58:46,454 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_resume_tx_beacon [2022-11-22 01:58:46,455 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_init_sw_vars [2022-11-22 01:58:46,455 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_init_sw_vars [2022-11-22 01:58:46,455 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-11-22 01:58:46,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-11-22 01:58:46,455 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88_config_s [2022-11-22 01:58:46,455 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88_config_s [2022-11-22 01:58:46,455 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-11-22 01:58:46,455 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-11-22 01:58:46,455 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-11-22 01:58:46,455 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-11-22 01:58:46,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 01:58:46,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 01:58:46,456 INFO L130 BoogieDeclarations]: Found specification of procedure config_bb_with_header [2022-11-22 01:58:46,456 INFO L138 BoogieDeclarations]: Found implementation of procedure config_bb_with_header [2022-11-22 01:58:46,456 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-22 01:58:46,456 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-22 01:58:46,456 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_dword [2022-11-22 01:58:46,456 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_dword [2022-11-22 01:58:46,456 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_media_status [2022-11-22 01:58:46,456 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_media_status [2022-11-22 01:58:46,456 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_fwlps_leave [2022-11-22 01:58:46,457 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_fwlps_leave [2022-11-22 01:58:46,457 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-22 01:58:46,457 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-22 01:58:46,457 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-22 01:58:46,457 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-22 01:58:46,457 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_tx_fill_cmddesc [2022-11-22 01:58:46,457 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_tx_fill_cmddesc [2022-11-22 01:58:46,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:58:46,457 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_disconnect [2022-11-22 01:58:46,458 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_disconnect [2022-11-22 01:58:46,458 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_sw_chnl_cmdarray [2022-11-22 01:58:46,458 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_sw_chnl_cmdarray [2022-11-22 01:58:46,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 01:58:46,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 01:58:46,458 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_fw_clock_on [2022-11-22 01:58:46,458 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_fw_clock_on [2022-11-22 01:58:46,458 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-22 01:58:46,458 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-22 01:58:48,734 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:58:48,737 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:58:52,735 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 02:01:03,277 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 02:01:03,835 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:01:14,837 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:01:14,837 INFO L300 CfgBuilder]: Removed 19 assume(true) statements. [2022-11-22 02:01:14,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:01:14 BoogieIcfgContainer [2022-11-22 02:01:14,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:01:14,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:01:14,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:01:14,860 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:01:14,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:58:34" (1/3) ... [2022-11-22 02:01:14,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef10211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:01:14, skipping insertion in model container [2022-11-22 02:01:14,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:43" (2/3) ... [2022-11-22 02:01:14,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef10211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:01:14, skipping insertion in model container [2022-11-22 02:01:14,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:01:14" (3/3) ... [2022-11-22 02:01:14,863 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i [2022-11-22 02:01:14,886 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:01:14,886 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-22 02:01:15,082 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:01:15,093 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7e54ff72, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:01:15,093 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-22 02:01:15,125 INFO L276 IsEmpty]: Start isEmpty. Operand has 6057 states, 3697 states have (on average 1.3716526913713822) internal successors, (5071), 3861 states have internal predecessors, (5071), 2203 states have call successors, (2203), 164 states have call predecessors, (2203), 163 states have return successors, (2193), 2124 states have call predecessors, (2193), 2193 states have call successors, (2193) [2022-11-22 02:01:15,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-11-22 02:01:15,157 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:01:15,159 INFO L195 NwaCegarLoop]: trace histogram [28, 27, 27, 27, 27, 27, 27, 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] [2022-11-22 02:01:15,159 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:01:15,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:01:15,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1314428584, now seen corresponding path program 1 times [2022-11-22 02:01:15,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:01:15,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975768277] [2022-11-22 02:01:15,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:01:15,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:01:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:01:18,531 INFO L134 CoverageAnalysis]: Checked inductivity of 2865 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2865 trivial. 0 not checked. [2022-11-22 02:01:18,532 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:01:18,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975768277] [2022-11-22 02:01:18,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975768277] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:01:18,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:01:18,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:01:18,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753297861] [2022-11-22 02:01:18,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:01:18,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:01:18,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:01:18,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:01:18,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:01:18,610 INFO L87 Difference]: Start difference. First operand has 6057 states, 3697 states have (on average 1.3716526913713822) internal successors, (5071), 3861 states have internal predecessors, (5071), 2203 states have call successors, (2203), 164 states have call predecessors, (2203), 163 states have return successors, (2193), 2124 states have call predecessors, (2193), 2193 states have call successors, (2193) Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-22 02:01:21,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:01:25,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:01:29,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:01:33,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:01:35,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:01:37,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:01:39,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:01:42,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:01:44,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:01:47,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:01:48,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:01:48,320 INFO L93 Difference]: Finished difference Result 11456 states and 17677 transitions. [2022-11-22 02:01:48,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:01:48,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 293 [2022-11-22 02:01:48,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:01:48,423 INFO L225 Difference]: With dead ends: 11456 [2022-11-22 02:01:48,424 INFO L226 Difference]: Without dead ends: 6693 [2022-11-22 02:01:48,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:01:48,467 INFO L413 NwaCegarLoop]: 6626 mSDtfsCounter, 5601 mSDsluCounter, 5379 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 21 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5605 SdHoareTripleChecker+Valid, 12005 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:01:48,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5605 Valid, 12005 Invalid, 1189 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 1160 Invalid, 8 Unknown, 0 Unchecked, 29.0s Time] [2022-11-22 02:01:48,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6693 states. [2022-11-22 02:01:49,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6693 to 6686. [2022-11-22 02:01:49,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6686 states, 4269 states have (on average 1.35605528226751) internal successors, (5789), 4401 states have internal predecessors, (5789), 2180 states have call successors, (2180), 236 states have call predecessors, (2180), 235 states have return successors, (2179), 2112 states have call predecessors, (2179), 2177 states have call successors, (2179) [2022-11-22 02:01:49,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6686 states to 6686 states and 10148 transitions. [2022-11-22 02:01:49,433 INFO L78 Accepts]: Start accepts. Automaton has 6686 states and 10148 transitions. Word has length 293 [2022-11-22 02:01:49,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:01:49,434 INFO L495 AbstractCegarLoop]: Abstraction has 6686 states and 10148 transitions. [2022-11-22 02:01:49,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-22 02:01:49,435 INFO L276 IsEmpty]: Start isEmpty. Operand 6686 states and 10148 transitions. [2022-11-22 02:01:49,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-11-22 02:01:49,445 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:01:49,445 INFO L195 NwaCegarLoop]: trace histogram [28, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:01:49,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:01:49,446 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:01:49,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:01:49,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1505955871, now seen corresponding path program 1 times [2022-11-22 02:01:49,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:01:49,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290012997] [2022-11-22 02:01:49,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:01:49,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:01:50,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:01:51,233 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2862 trivial. 0 not checked. [2022-11-22 02:01:51,233 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:01:51,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290012997] [2022-11-22 02:01:51,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290012997] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:01:51,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:01:51,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:01:51,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23576967] [2022-11-22 02:01:51,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:01:51,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:01:51,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:01:51,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:01:51,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:01:51,237 INFO L87 Difference]: Start difference. First operand 6686 states and 10148 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-22 02:01:54,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:01:57,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:00,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:02,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:05,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:08,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:09,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:11,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:14,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:16,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:18,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:19,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:19,056 INFO L93 Difference]: Finished difference Result 16474 states and 25011 transitions. [2022-11-22 02:02:19,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:02:19,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 301 [2022-11-22 02:02:19,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:19,125 INFO L225 Difference]: With dead ends: 16474 [2022-11-22 02:02:19,125 INFO L226 Difference]: Without dead ends: 9843 [2022-11-22 02:02:19,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:02:19,160 INFO L413 NwaCegarLoop]: 5808 mSDtfsCounter, 4842 mSDsluCounter, 4695 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 16 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4846 SdHoareTripleChecker+Valid, 10503 SdHoareTripleChecker+Invalid, 1102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:19,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4846 Valid, 10503 Invalid, 1102 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 1079 Invalid, 7 Unknown, 0 Unchecked, 27.3s Time] [2022-11-22 02:02:19,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9843 states. [2022-11-22 02:02:20,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9843 to 9829. [2022-11-22 02:02:20,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9829 states, 6283 states have (on average 1.3541301925831608) internal successors, (8508), 6485 states have internal predecessors, (8508), 3197 states have call successors, (3197), 349 states have call predecessors, (3197), 347 states have return successors, (3198), 3090 states have call predecessors, (3198), 3194 states have call successors, (3198) [2022-11-22 02:02:20,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9829 states to 9829 states and 14903 transitions. [2022-11-22 02:02:20,208 INFO L78 Accepts]: Start accepts. Automaton has 9829 states and 14903 transitions. Word has length 301 [2022-11-22 02:02:20,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:20,209 INFO L495 AbstractCegarLoop]: Abstraction has 9829 states and 14903 transitions. [2022-11-22 02:02:20,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-22 02:02:20,211 INFO L276 IsEmpty]: Start isEmpty. Operand 9829 states and 14903 transitions. [2022-11-22 02:02:20,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-11-22 02:02:20,221 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:20,222 INFO L195 NwaCegarLoop]: trace histogram [28, 27, 27, 27, 27, 27, 27, 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] [2022-11-22 02:02:20,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:02:20,222 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:02:20,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:20,223 INFO L85 PathProgramCache]: Analyzing trace with hash -709561570, now seen corresponding path program 1 times [2022-11-22 02:02:20,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:20,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701699391] [2022-11-22 02:02:20,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:20,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:20,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:21,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2865 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2865 trivial. 0 not checked. [2022-11-22 02:02:21,740 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:21,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701699391] [2022-11-22 02:02:21,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701699391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:21,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:21,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:02:21,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795281224] [2022-11-22 02:02:21,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:21,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:02:21,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:21,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:02:21,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:02:21,743 INFO L87 Difference]: Start difference. First operand 9829 states and 14903 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, (35), 2 states have call predecessors, (35), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-22 02:02:24,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:27,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:30,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:32,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:35,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:37,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:39,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:41,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:43,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:45,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:47,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:47,122 INFO L93 Difference]: Finished difference Result 25903 states and 39286 transitions. [2022-11-22 02:02:47,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:02:47,126 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, (35), 2 states have call predecessors, (35), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 320 [2022-11-22 02:02:47,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:47,230 INFO L225 Difference]: With dead ends: 25903 [2022-11-22 02:02:47,230 INFO L226 Difference]: Without dead ends: 16129 [2022-11-22 02:02:47,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:02:47,275 INFO L413 NwaCegarLoop]: 5864 mSDtfsCounter, 4839 mSDsluCounter, 4706 mSDsCounter, 0 mSdLazyCounter, 1087 mSolverCounterSat, 12 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4845 SdHoareTripleChecker+Valid, 10570 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1087 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:47,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4845 Valid, 10570 Invalid, 1106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1087 Invalid, 7 Unknown, 0 Unchecked, 24.7s Time] [2022-11-22 02:02:47,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16129 states. [2022-11-22 02:02:48,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16129 to 16107. [2022-11-22 02:02:48,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16107 states, 10302 states have (on average 1.3536206561832653) internal successors, (13945), 10647 states have internal predecessors, (13945), 5230 states have call successors, (5230), 576 states have call predecessors, (5230), 573 states have return successors, (5239), 5041 states have call predecessors, (5239), 5227 states have call successors, (5239) [2022-11-22 02:02:49,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16107 states to 16107 states and 24414 transitions. [2022-11-22 02:02:49,046 INFO L78 Accepts]: Start accepts. Automaton has 16107 states and 24414 transitions. Word has length 320 [2022-11-22 02:02:49,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:49,051 INFO L495 AbstractCegarLoop]: Abstraction has 16107 states and 24414 transitions. [2022-11-22 02:02:49,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-22 02:02:49,051 INFO L276 IsEmpty]: Start isEmpty. Operand 16107 states and 24414 transitions. [2022-11-22 02:02:49,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2022-11-22 02:02:49,064 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:49,064 INFO L195 NwaCegarLoop]: trace histogram [31, 27, 27, 27, 27, 27, 27, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:49,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:02:49,064 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:02:49,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:49,065 INFO L85 PathProgramCache]: Analyzing trace with hash 749521973, now seen corresponding path program 1 times [2022-11-22 02:02:49,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:49,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570333414] [2022-11-22 02:02:49,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:49,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:49,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:52,152 INFO L134 CoverageAnalysis]: Checked inductivity of 3070 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3070 trivial. 0 not checked. [2022-11-22 02:02:52,153 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:52,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570333414] [2022-11-22 02:02:52,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570333414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:52,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:52,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:02:52,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335216780] [2022-11-22 02:02:52,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:52,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:02:52,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:52,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:02:52,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:02:52,155 INFO L87 Difference]: Start difference. First operand 16107 states and 24414 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-11-22 02:02:54,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:02:58,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:01,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:02,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:04,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:08,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:10,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:12,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:14,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:15,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:17,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:19,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:21,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:23,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:23,333 INFO L93 Difference]: Finished difference Result 28893 states and 43813 transitions. [2022-11-22 02:03:23,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:03:23,335 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 337 [2022-11-22 02:03:23,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:23,505 INFO L225 Difference]: With dead ends: 28893 [2022-11-22 02:03:23,505 INFO L226 Difference]: Without dead ends: 28854 [2022-11-22 02:03:23,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:03:23,522 INFO L413 NwaCegarLoop]: 5935 mSDtfsCounter, 4935 mSDsluCounter, 10582 mSDsCounter, 0 mSdLazyCounter, 1635 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4941 SdHoareTripleChecker+Valid, 16517 SdHoareTripleChecker+Invalid, 1642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1635 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:23,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4941 Valid, 16517 Invalid, 1642 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1635 Invalid, 7 Unknown, 0 Unchecked, 30.3s Time] [2022-11-22 02:03:23,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28854 states. [2022-11-22 02:03:26,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28854 to 28843. [2022-11-22 02:03:26,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28843 states, 18458 states have (on average 1.3541553797811248) internal successors, (24995), 19073 states have internal predecessors, (24995), 9355 states have call successors, (9355), 1031 states have call predecessors, (9355), 1028 states have return successors, (9380), 9020 states have call predecessors, (9380), 9352 states have call successors, (9380) [2022-11-22 02:03:26,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28843 states to 28843 states and 43730 transitions. [2022-11-22 02:03:26,387 INFO L78 Accepts]: Start accepts. Automaton has 28843 states and 43730 transitions. Word has length 337 [2022-11-22 02:03:26,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:26,388 INFO L495 AbstractCegarLoop]: Abstraction has 28843 states and 43730 transitions. [2022-11-22 02:03:26,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-11-22 02:03:26,389 INFO L276 IsEmpty]: Start isEmpty. Operand 28843 states and 43730 transitions. [2022-11-22 02:03:26,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-11-22 02:03:26,411 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:26,412 INFO L195 NwaCegarLoop]: trace histogram [31, 27, 27, 27, 27, 27, 27, 4, 4, 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] [2022-11-22 02:03:26,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:03:26,413 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:03:26,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:26,413 INFO L85 PathProgramCache]: Analyzing trace with hash -400196584, now seen corresponding path program 1 times [2022-11-22 02:03:26,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:26,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254467318] [2022-11-22 02:03:26,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:26,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:27,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:28,332 INFO L134 CoverageAnalysis]: Checked inductivity of 3057 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3054 trivial. 0 not checked. [2022-11-22 02:03:28,333 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:28,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254467318] [2022-11-22 02:03:28,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254467318] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:28,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:28,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:03:28,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937917887] [2022-11-22 02:03:28,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:28,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:03:28,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:28,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:03:28,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:03:28,337 INFO L87 Difference]: Start difference. First operand 28843 states and 43730 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-11-22 02:03:31,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:34,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:37,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:42,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:44,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:46,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:48,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:50,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:53,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:55,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:03:56,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:56,844 INFO L93 Difference]: Finished difference Result 67156 states and 101876 transitions. [2022-11-22 02:03:56,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:03:56,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 350 [2022-11-22 02:03:56,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:57,090 INFO L225 Difference]: With dead ends: 67156 [2022-11-22 02:03:57,090 INFO L226 Difference]: Without dead ends: 41470 [2022-11-22 02:03:57,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:03:57,348 INFO L413 NwaCegarLoop]: 9090 mSDtfsCounter, 4808 mSDsluCounter, 4693 mSDsCounter, 0 mSdLazyCounter, 1524 mSolverCounterSat, 15 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4814 SdHoareTripleChecker+Valid, 13783 SdHoareTripleChecker+Invalid, 1545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1524 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:57,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4814 Valid, 13783 Invalid, 1545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1524 Invalid, 6 Unknown, 0 Unchecked, 27.2s Time] [2022-11-22 02:03:57,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41470 states. [2022-11-22 02:04:00,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41470 to 41451. [2022-11-22 02:04:00,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41451 states, 26532 states have (on average 1.3539499472335292) internal successors, (35923), 27425 states have internal predecessors, (35923), 13441 states have call successors, (13441), 1481 states have call predecessors, (13441), 1476 states have return successors, (13482), 12950 states have call predecessors, (13482), 13438 states have call successors, (13482) [2022-11-22 02:04:00,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41451 states to 41451 states and 62846 transitions. [2022-11-22 02:04:00,703 INFO L78 Accepts]: Start accepts. Automaton has 41451 states and 62846 transitions. Word has length 350 [2022-11-22 02:04:00,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:00,706 INFO L495 AbstractCegarLoop]: Abstraction has 41451 states and 62846 transitions. [2022-11-22 02:04:00,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-11-22 02:04:00,706 INFO L276 IsEmpty]: Start isEmpty. Operand 41451 states and 62846 transitions. [2022-11-22 02:04:00,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2022-11-22 02:04:00,734 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:00,735 INFO L195 NwaCegarLoop]: trace histogram [29, 27, 27, 27, 27, 27, 27, 4, 4, 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] [2022-11-22 02:04:00,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:04:00,735 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:04:00,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:00,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1511072430, now seen corresponding path program 1 times [2022-11-22 02:04:00,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:00,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513846014] [2022-11-22 02:04:00,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:00,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:03,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:06,315 INFO L134 CoverageAnalysis]: Checked inductivity of 2939 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2936 trivial. 0 not checked. [2022-11-22 02:04:06,315 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:06,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513846014] [2022-11-22 02:04:06,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513846014] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:06,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:06,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:04:06,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374830461] [2022-11-22 02:04:06,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:06,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:04:06,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:06,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:04:06,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:04:06,318 INFO L87 Difference]: Start difference. First operand 41451 states and 62846 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-11-22 02:04:09,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:04:13,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:04:17,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:04:22,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:04:24,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:04:27,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:04:29,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:04:32,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:32,072 INFO L93 Difference]: Finished difference Result 106652 states and 161392 transitions. [2022-11-22 02:04:32,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:04:32,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 361 [2022-11-22 02:04:32,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:32,517 INFO L225 Difference]: With dead ends: 106652 [2022-11-22 02:04:32,518 INFO L226 Difference]: Without dead ends: 65256 [2022-11-22 02:04:32,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:04:32,660 INFO L413 NwaCegarLoop]: 5641 mSDtfsCounter, 3246 mSDsluCounter, 4625 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 15 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3248 SdHoareTripleChecker+Valid, 10266 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:32,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3248 Valid, 10266 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1197 Invalid, 6 Unknown, 0 Unchecked, 23.6s Time] [2022-11-22 02:04:32,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65256 states. [2022-11-22 02:04:37,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65256 to 65221. [2022-11-22 02:04:37,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65221 states, 41544 states have (on average 1.346572308877335) internal successors, (55942), 43044 states have internal predecessors, (55942), 21211 states have call successors, (21211), 2473 states have call predecessors, (21211), 2464 states have return successors, (21273), 20379 states have call predecessors, (21273), 21208 states have call successors, (21273) [2022-11-22 02:04:37,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65221 states to 65221 states and 98426 transitions. [2022-11-22 02:04:37,654 INFO L78 Accepts]: Start accepts. Automaton has 65221 states and 98426 transitions. Word has length 361 [2022-11-22 02:04:37,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:37,655 INFO L495 AbstractCegarLoop]: Abstraction has 65221 states and 98426 transitions. [2022-11-22 02:04:37,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-11-22 02:04:37,656 INFO L276 IsEmpty]: Start isEmpty. Operand 65221 states and 98426 transitions. [2022-11-22 02:04:37,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2022-11-22 02:04:37,699 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:37,699 INFO L195 NwaCegarLoop]: trace histogram [32, 27, 27, 27, 27, 27, 27, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:37,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 02:04:37,700 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:04:37,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:37,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1517929363, now seen corresponding path program 1 times [2022-11-22 02:04:37,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:37,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723798504] [2022-11-22 02:04:37,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:37,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:38,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:39,461 INFO L134 CoverageAnalysis]: Checked inductivity of 3159 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3152 trivial. 0 not checked. [2022-11-22 02:04:39,462 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:39,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723798504] [2022-11-22 02:04:39,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723798504] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:39,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:39,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:04:39,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296579700] [2022-11-22 02:04:39,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:39,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:04:39,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:39,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:04:39,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:04:39,465 INFO L87 Difference]: Start difference. First operand 65221 states and 98426 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-22 02:04:42,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:04:47,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:04:50,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:04:54,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:04:56,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:04:58,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:01,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:04,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:06,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:05:06,368 INFO L93 Difference]: Finished difference Result 159521 states and 240865 transitions. [2022-11-22 02:05:06,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:05:06,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 381 [2022-11-22 02:05:06,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:05:06,933 INFO L225 Difference]: With dead ends: 159521 [2022-11-22 02:05:06,933 INFO L226 Difference]: Without dead ends: 96347 [2022-11-22 02:05:07,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:05:07,143 INFO L413 NwaCegarLoop]: 9114 mSDtfsCounter, 4838 mSDsluCounter, 4704 mSDsCounter, 0 mSdLazyCounter, 1516 mSolverCounterSat, 9 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4844 SdHoareTripleChecker+Valid, 13818 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1516 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:05:07,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4844 Valid, 13818 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1516 Invalid, 8 Unknown, 0 Unchecked, 23.7s Time] [2022-11-22 02:05:07,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96347 states. [2022-11-22 02:05:13,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96347 to 96305. [2022-11-22 02:05:13,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96305 states, 61360 states have (on average 1.3465123859191657) internal successors, (82622), 63600 states have internal predecessors, (82622), 31315 states have call successors, (31315), 3641 states have call predecessors, (31315), 3628 states have return successors, (31413), 30063 states have call predecessors, (31413), 31312 states have call successors, (31413) [2022-11-22 02:05:14,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96305 states to 96305 states and 145350 transitions. [2022-11-22 02:05:14,431 INFO L78 Accepts]: Start accepts. Automaton has 96305 states and 145350 transitions. Word has length 381 [2022-11-22 02:05:14,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:05:14,431 INFO L495 AbstractCegarLoop]: Abstraction has 96305 states and 145350 transitions. [2022-11-22 02:05:14,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-22 02:05:14,432 INFO L276 IsEmpty]: Start isEmpty. Operand 96305 states and 145350 transitions. [2022-11-22 02:05:14,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2022-11-22 02:05:14,533 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:05:14,534 INFO L195 NwaCegarLoop]: trace histogram [34, 27, 27, 27, 27, 27, 27, 6, 6, 4, 4, 4, 2, 2, 2, 2, 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] [2022-11-22 02:05:14,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 02:05:14,534 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:05:14,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:05:14,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1134087747, now seen corresponding path program 1 times [2022-11-22 02:05:14,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:05:14,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764028489] [2022-11-22 02:05:14,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:05:14,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:05:15,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:05:17,288 INFO L134 CoverageAnalysis]: Checked inductivity of 3311 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3311 trivial. 0 not checked. [2022-11-22 02:05:17,288 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:05:17,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764028489] [2022-11-22 02:05:17,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764028489] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:05:17,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:05:17,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:05:17,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502497220] [2022-11-22 02:05:17,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:05:17,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:05:17,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:05:17,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:05:17,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:05:17,290 INFO L87 Difference]: Start difference. First operand 96305 states and 145350 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-22 02:05:20,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:24,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:27,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:29,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:31,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:35,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:37,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:39,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:40,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:41,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:44,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:46,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:48,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:50,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:52,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:54,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:05:54,834 INFO L93 Difference]: Finished difference Result 96464 states and 145532 transitions. [2022-11-22 02:05:54,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:05:54,834 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 404 [2022-11-22 02:05:54,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:05:55,521 INFO L225 Difference]: With dead ends: 96464 [2022-11-22 02:05:55,522 INFO L226 Difference]: Without dead ends: 96462 [2022-11-22 02:05:55,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:05:55,568 INFO L413 NwaCegarLoop]: 5860 mSDtfsCounter, 4914 mSDsluCounter, 10505 mSDsCounter, 0 mSdLazyCounter, 1588 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4918 SdHoareTripleChecker+Valid, 16365 SdHoareTripleChecker+Invalid, 1598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1588 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:05:55,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4918 Valid, 16365 Invalid, 1598 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1588 Invalid, 9 Unknown, 0 Unchecked, 35.1s Time] [2022-11-22 02:05:55,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96462 states. [2022-11-22 02:06:01,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96462 to 96417. [2022-11-22 02:06:01,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96417 states, 61424 states have (on average 1.3461839020578275) internal successors, (82688), 63668 states have internal predecessors, (82688), 31343 states have call successors, (31343), 3657 states have call predecessors, (31343), 3648 states have return successors, (31441), 30095 states have call predecessors, (31441), 31340 states have call successors, (31441) [2022-11-22 02:06:02,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96417 states to 96417 states and 145472 transitions. [2022-11-22 02:06:02,335 INFO L78 Accepts]: Start accepts. Automaton has 96417 states and 145472 transitions. Word has length 404 [2022-11-22 02:06:02,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:02,336 INFO L495 AbstractCegarLoop]: Abstraction has 96417 states and 145472 transitions. [2022-11-22 02:06:02,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-22 02:06:02,336 INFO L276 IsEmpty]: Start isEmpty. Operand 96417 states and 145472 transitions. [2022-11-22 02:06:02,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2022-11-22 02:06:02,427 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:02,427 INFO L195 NwaCegarLoop]: trace histogram [33, 27, 27, 27, 27, 27, 27, 8, 8, 4, 4, 4, 3, 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] [2022-11-22 02:06:02,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 02:06:02,428 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:06:02,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:02,428 INFO L85 PathProgramCache]: Analyzing trace with hash -49350045, now seen corresponding path program 1 times [2022-11-22 02:06:02,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:06:02,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306229769] [2022-11-22 02:06:02,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:02,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:06:04,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:06,269 INFO L134 CoverageAnalysis]: Checked inductivity of 3272 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3254 trivial. 0 not checked. [2022-11-22 02:06:06,269 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:06:06,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306229769] [2022-11-22 02:06:06,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306229769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:06,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:06,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:06:06,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769161245] [2022-11-22 02:06:06,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:06,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:06:06,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:06:06,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:06:06,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:06:06,272 INFO L87 Difference]: Start difference. First operand 96417 states and 145472 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-22 02:06:09,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:14,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:17,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:21,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:22,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:24,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:27,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:29,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:32,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:35,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:35,988 INFO L93 Difference]: Finished difference Result 227945 states and 343774 transitions. [2022-11-22 02:06:35,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:06:35,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 420 [2022-11-22 02:06:35,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:36,840 INFO L225 Difference]: With dead ends: 227945 [2022-11-22 02:06:36,841 INFO L226 Difference]: Without dead ends: 133575 [2022-11-22 02:06:37,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:06:37,424 INFO L413 NwaCegarLoop]: 7665 mSDtfsCounter, 3246 mSDsluCounter, 4623 mSDsCounter, 0 mSdLazyCounter, 1455 mSolverCounterSat, 12 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3248 SdHoareTripleChecker+Valid, 12288 SdHoareTripleChecker+Invalid, 1474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1455 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:37,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3248 Valid, 12288 Invalid, 1474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1455 Invalid, 7 Unknown, 0 Unchecked, 25.4s Time] [2022-11-22 02:06:37,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133575 states. [2022-11-22 02:06:46,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133575 to 133528. [2022-11-22 02:06:46,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133528 states, 84888 states have (on average 1.3432994062765056) internal successors, (114030), 88079 states have internal predecessors, (114030), 43469 states have call successors, (43469), 5182 states have call predecessors, (43469), 5169 states have return successors, (43601), 41688 states have call predecessors, (43601), 43466 states have call successors, (43601) [2022-11-22 02:06:46,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133528 states to 133528 states and 201100 transitions. [2022-11-22 02:06:46,688 INFO L78 Accepts]: Start accepts. Automaton has 133528 states and 201100 transitions. Word has length 420 [2022-11-22 02:06:46,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:46,689 INFO L495 AbstractCegarLoop]: Abstraction has 133528 states and 201100 transitions. [2022-11-22 02:06:46,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-22 02:06:46,689 INFO L276 IsEmpty]: Start isEmpty. Operand 133528 states and 201100 transitions. [2022-11-22 02:06:46,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2022-11-22 02:06:46,824 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:46,825 INFO L195 NwaCegarLoop]: trace histogram [35, 27, 27, 27, 27, 27, 27, 8, 8, 5, 5, 5, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:06:46,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 02:06:46,825 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:06:46,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:46,826 INFO L85 PathProgramCache]: Analyzing trace with hash 960576528, now seen corresponding path program 1 times [2022-11-22 02:06:46,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:06:46,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745852126] [2022-11-22 02:06:46,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:46,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms