./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 8393723b 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_d6933375-168b-4f7a-a2f3-de993c80dd17/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6933375-168b-4f7a-a2f3-de993c80dd17/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6933375-168b-4f7a-a2f3-de993c80dd17/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6933375-168b-4f7a-a2f3-de993c80dd17/bin/utaipan-I9t0OCRTmS/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_d6933375-168b-4f7a-a2f3-de993c80dd17/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6933375-168b-4f7a-a2f3-de993c80dd17/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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-8393723 [2022-11-19 06:48:32,243 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:48:32,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:48:32,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:48:32,280 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:48:32,281 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:48:32,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:48:32,284 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:48:32,286 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:48:32,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:48:32,288 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:48:32,290 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:48:32,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:48:32,291 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:48:32,293 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:48:32,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:48:32,295 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:48:32,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:48:32,298 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:48:32,300 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:48:32,301 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:48:32,303 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:48:32,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:48:32,305 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:48:32,309 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:48:32,310 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:48:32,310 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:48:32,311 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:48:32,312 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:48:32,313 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:48:32,313 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:48:32,314 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:48:32,315 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:48:32,316 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:48:32,317 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:48:32,318 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:48:32,318 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:48:32,319 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:48:32,319 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:48:32,320 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:48:32,321 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:48:32,322 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6933375-168b-4f7a-a2f3-de993c80dd17/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 06:48:32,345 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:48:32,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:48:32,346 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:48:32,346 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:48:32,347 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:48:32,347 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:48:32,347 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:48:32,347 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:48:32,348 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:48:32,348 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:48:32,348 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:48:32,349 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:48:32,349 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:48:32,349 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:48:32,349 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:48:32,350 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:48:32,350 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:48:32,350 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:48:32,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:48:32,351 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:48:32,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:48:32,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:48:32,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:48:32,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:48:32,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:48:32,353 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:48:32,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:48:32,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:48:32,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:48:32,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:48:32,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:48:32,355 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:48:32,355 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:48:32,355 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:48:32,356 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:48:32,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:48:32,356 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:48:32,356 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:48:32,357 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_d6933375-168b-4f7a-a2f3-de993c80dd17/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6933375-168b-4f7a-a2f3-de993c80dd17/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20ba2e9cc2ef279759182db9390a81601d500e95b3e9fdb04cf7f5f978bf9c45 [2022-11-19 06:48:32,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:48:32,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:48:32,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:48:32,688 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:48:32,689 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:48:32,691 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6933375-168b-4f7a-a2f3-de993c80dd17/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i [2022-11-19 06:48:32,766 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6933375-168b-4f7a-a2f3-de993c80dd17/bin/utaipan-I9t0OCRTmS/data/e81231039/b392389168cf4cedaf8922c47ab5aafa/FLAG07045f5df [2022-11-19 06:48:34,165 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:48:34,165 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6933375-168b-4f7a-a2f3-de993c80dd17/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i [2022-11-19 06:48:34,266 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6933375-168b-4f7a-a2f3-de993c80dd17/bin/utaipan-I9t0OCRTmS/data/e81231039/b392389168cf4cedaf8922c47ab5aafa/FLAG07045f5df [2022-11-19 06:48:34,677 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6933375-168b-4f7a-a2f3-de993c80dd17/bin/utaipan-I9t0OCRTmS/data/e81231039/b392389168cf4cedaf8922c47ab5aafa [2022-11-19 06:48:34,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:48:34,687 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:48:34,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:48:34,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:48:34,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:48:34,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:48:34" (1/1) ... [2022-11-19 06:48:34,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23db2615 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:48:34, skipping insertion in model container [2022-11-19 06:48:34,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:48:34" (1/1) ... [2022-11-19 06:48:34,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:48:35,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:48:42,668 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6933375-168b-4f7a-a2f3-de993c80dd17/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] [2022-11-19 06:48:42,673 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6933375-168b-4f7a-a2f3-de993c80dd17/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] [2022-11-19 06:48:42,673 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6933375-168b-4f7a-a2f3-de993c80dd17/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] [2022-11-19 06:48:42,674 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6933375-168b-4f7a-a2f3-de993c80dd17/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] [2022-11-19 06:48:42,735 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:48:42,864 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:48:43,932 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6933375-168b-4f7a-a2f3-de993c80dd17/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] [2022-11-19 06:48:43,932 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6933375-168b-4f7a-a2f3-de993c80dd17/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] [2022-11-19 06:48:43,933 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6933375-168b-4f7a-a2f3-de993c80dd17/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] [2022-11-19 06:48:43,934 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6933375-168b-4f7a-a2f3-de993c80dd17/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] [2022-11-19 06:48:43,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:48:44,273 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:48:44,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:48:44 WrapperNode [2022-11-19 06:48:44,273 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:48:44,274 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:48:44,275 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:48:44,275 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:48:44,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:48:44" (1/1) ... [2022-11-19 06:48:44,518 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:48:44" (1/1) ... [2022-11-19 06:48:45,447 INFO L138 Inliner]: procedures = 581, calls = 10819, calls flagged for inlining = 348, calls inlined = 340, statements flattened = 26185 [2022-11-19 06:48:45,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:48:45,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:48:45,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:48:45,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:48:45,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:48:44" (1/1) ... [2022-11-19 06:48:45,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:48:44" (1/1) ... [2022-11-19 06:48:45,752 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:48:44" (1/1) ... [2022-11-19 06:48:45,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:48:44" (1/1) ... [2022-11-19 06:48:46,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:48:44" (1/1) ... [2022-11-19 06:48:46,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:48:44" (1/1) ... [2022-11-19 06:48:47,022 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:48:44" (1/1) ... [2022-11-19 06:48:47,083 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:48:44" (1/1) ... [2022-11-19 06:48:47,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:48:47,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:48:47,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:48:47,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:48:47,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:48:44" (1/1) ... [2022-11-19 06:48:47,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:48:47,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6933375-168b-4f7a-a2f3-de993c80dd17/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:48:47,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6933375-168b-4f7a-a2f3-de993c80dd17/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:48:47,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6933375-168b-4f7a-a2f3-de993c80dd17/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:48:47,363 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_check_bssid [2022-11-19 06:48:47,364 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_check_bssid [2022-11-19 06:48:47,364 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_query_rf_reg [2022-11-19 06:48:47,364 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_query_rf_reg [2022-11-19 06:48:47,364 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_sw_led_on [2022-11-19 06:48:47,364 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_sw_led_on [2022-11-19 06:48:47,364 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-19 06:48:47,364 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-19 06:48:47,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 06:48:47,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 06:48:47,365 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_lc_calibrate [2022-11-19 06:48:47,365 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_lc_calibrate [2022-11-19 06:48:47,365 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8188e_config_bb_reg [2022-11-19 06:48:47,365 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8188e_config_bb_reg [2022-11-19 06:48:47,365 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_word [2022-11-19 06:48:47,366 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_word [2022-11-19 06:48:47,366 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_fwlps_enter [2022-11-19 06:48:47,366 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_fwlps_enter [2022-11-19 06:48:47,366 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_phy_path_adda_on [2022-11-19 06:48:47,366 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_phy_path_adda_on [2022-11-19 06:48:47,366 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_signal_scale_mapping [2022-11-19 06:48:47,366 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_signal_scale_mapping [2022-11-19 06:48:47,366 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_byte [2022-11-19 06:48:47,367 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_byte [2022-11-19 06:48:47,367 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-19 06:48:47,367 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-19 06:48:47,367 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-19 06:48:47,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-19 06:48:47,368 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 06:48:47,368 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 06:48:47,368 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_query_bb_reg [2022-11-19 06:48:47,369 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_query_bb_reg [2022-11-19 06:48:47,369 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_suspend [2022-11-19 06:48:47,369 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_suspend [2022-11-19 06:48:47,369 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_enable_interrupt [2022-11-19 06:48:47,369 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_enable_interrupt [2022-11-19 06:48:47,369 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_sw_led_off [2022-11-19 06:48:47,370 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_sw_led_off [2022-11-19 06:48:47,370 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 06:48:47,370 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_dword [2022-11-19 06:48:47,370 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_dword [2022-11-19 06:48:47,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 06:48:47,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 06:48:47,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rtl88ee_driver_exit_9_2 [2022-11-19 06:48:47,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rtl88ee_driver_exit_9_2 [2022-11-19 06:48:47,372 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_config_rf_with_headerfile [2022-11-19 06:48:47,373 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_config_rf_with_headerfile [2022-11-19 06:48:47,373 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_firmware_selfreset [2022-11-19 06:48:47,373 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_firmware_selfreset [2022-11-19 06:48:47,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 06:48:47,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 06:48:47,374 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-19 06:48:47,374 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-19 06:48:47,375 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_get_desc [2022-11-19 06:48:47,375 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_get_desc [2022-11-19 06:48:47,375 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_beacon_interval [2022-11-19 06:48:47,375 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_beacon_interval [2022-11-19 06:48:47,375 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_disable_interrupt [2022-11-19 06:48:47,375 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_disable_interrupt [2022-11-19 06:48:47,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 06:48:47,376 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_resume [2022-11-19 06:48:47,376 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_resume [2022-11-19 06:48:47,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-11-19 06:48:47,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-11-19 06:48:47,376 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_update_channel_access_setting [2022-11-19 06:48:47,377 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_update_channel_access_setting [2022-11-19 06:48:47,377 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_update_rx_idle_ant [2022-11-19 06:48:47,378 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_update_rx_idle_ant [2022-11-19 06:48:47,378 INFO L130 BoogieDeclarations]: Found specification of procedure get_rf_type [2022-11-19 06:48:47,378 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rf_type [2022-11-19 06:48:47,378 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-19 06:48:47,379 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-19 06:48:47,379 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-19 06:48:47,379 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-19 06:48:47,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 06:48:47,380 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_has_protected [2022-11-19 06:48:47,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_has_protected [2022-11-19 06:48:47,380 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 06:48:47,381 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 06:48:47,381 INFO L130 BoogieDeclarations]: Found specification of procedure is_hal_stop [2022-11-19 06:48:47,381 INFO L138 BoogieDeclarations]: Found implementation of procedure is_hal_stop [2022-11-19 06:48:47,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 06:48:47,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 06:48:47,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 06:48:47,382 INFO L130 BoogieDeclarations]: Found specification of procedure rf_serial_read [2022-11-19 06:48:47,382 INFO L138 BoogieDeclarations]: Found implementation of procedure rf_serial_read [2022-11-19 06:48:47,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 06:48:47,383 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_update_interrupt_mask [2022-11-19 06:48:47,384 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_update_interrupt_mask [2022-11-19 06:48:47,384 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-19 06:48:47,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-19 06:48:47,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 06:48:47,384 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 06:48:47,384 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_rf_reg [2022-11-19 06:48:47,384 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_rf_reg [2022-11-19 06:48:47,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 06:48:47,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 06:48:47,385 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-19 06:48:47,385 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-19 06:48:47,386 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2022-11-19 06:48:47,386 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2022-11-19 06:48:47,386 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_card_disable [2022-11-19 06:48:47,386 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_card_disable [2022-11-19 06:48:47,387 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_check_fw_read_last_h2c [2022-11-19 06:48:47,387 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_check_fw_read_last_h2c [2022-11-19 06:48:47,391 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_beacon [2022-11-19 06:48:47,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_beacon [2022-11-19 06:48:47,391 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2022-11-19 06:48:47,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2022-11-19 06:48:47,392 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_led_control [2022-11-19 06:48:47,392 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_led_control [2022-11-19 06:48:47,393 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_beacon_related_registers [2022-11-19 06:48:47,393 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_beacon_related_registers [2022-11-19 06:48:47,393 INFO L130 BoogieDeclarations]: Found specification of procedure save_adda_reg [2022-11-19 06:48:47,399 INFO L138 BoogieDeclarations]: Found implementation of procedure save_adda_reg [2022-11-19 06:48:47,400 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2022-11-19 06:48:47,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2022-11-19 06:48:47,400 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-11-19 06:48:47,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-11-19 06:48:47,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 06:48:47,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-19 06:48:47,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-19 06:48:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-11-19 06:48:47,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-11-19 06:48:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-19 06:48:47,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-19 06:48:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2022-11-19 06:48:47,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2022-11-19 06:48:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-19 06:48:47,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-19 06:48:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_hw_reg [2022-11-19 06:48:47,402 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_hw_reg [2022-11-19 06:48:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:48:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 06:48:47,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 06:48:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 06:48:47,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 06:48:47,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 06:48:47,403 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 06:48:47,403 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_rfpath_switch [2022-11-19 06:48:47,403 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_rfpath_switch [2022-11-19 06:48:47,403 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 06:48:47,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 06:48:47,403 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 06:48:47,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 06:48:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_update_hal_rate_tbl [2022-11-19 06:48:47,404 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_update_hal_rate_tbl [2022-11-19 06:48:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_txpower_level [2022-11-19 06:48:47,404 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_txpower_level [2022-11-19 06:48:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-19 06:48:47,404 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-19 06:48:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_bb_reg [2022-11-19 06:48:47,405 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_bb_reg [2022-11-19 06:48:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_qos [2022-11-19 06:48:47,405 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_qos [2022-11-19 06:48:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_iq_calibrate [2022-11-19 06:48:47,405 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_iq_calibrate [2022-11-19 06:48:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_cam_add_one_entry [2022-11-19 06:48:47,405 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_cam_add_one_entry [2022-11-19 06:48:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_check_txpower_tracking [2022-11-19 06:48:47,406 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_check_txpower_tracking [2022-11-19 06:48:47,406 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_init_led [2022-11-19 06:48:47,406 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_init_led [2022-11-19 06:48:47,406 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_txpower_track_adjust [2022-11-19 06:48:47,406 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_txpower_track_adjust [2022-11-19 06:48:47,406 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_poweroff_adapter [2022-11-19 06:48:47,406 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_poweroff_adapter [2022-11-19 06:48:47,406 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_init_edca_turbo [2022-11-19 06:48:47,406 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_init_edca_turbo [2022-11-19 06:48:47,407 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_bcn_ctrl_reg [2022-11-19 06:48:47,407 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_bcn_ctrl_reg [2022-11-19 06:48:47,407 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_init_sw_leds [2022-11-19 06:48:47,407 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_init_sw_leds [2022-11-19 06:48:47,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:48:47,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:48:47,407 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-19 06:48:47,407 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-19 06:48:47,408 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88_hal_pwrseqcmdparsing [2022-11-19 06:48:47,408 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88_hal_pwrseqcmdparsing [2022-11-19 06:48:47,408 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_enable_hw_security_config [2022-11-19 06:48:47,408 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_enable_hw_security_config [2022-11-19 06:48:47,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 06:48:47,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 06:48:47,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 06:48:47,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 06:48:47,409 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_DA [2022-11-19 06:48:47,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_DA [2022-11-19 06:48:47,409 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_rfreg [2022-11-19 06:48:47,409 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_rfreg [2022-11-19 06:48:47,409 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-19 06:48:47,409 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-19 06:48:47,409 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2022-11-19 06:48:47,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2022-11-19 06:48:47,410 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-19 06:48:47,410 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-19 06:48:47,410 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_set_iqk_matrix [2022-11-19 06:48:47,410 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_set_iqk_matrix [2022-11-19 06:48:47,410 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_chk_tx_track [2022-11-19 06:48:47,411 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_chk_tx_track [2022-11-19 06:48:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_data_qos [2022-11-19 06:48:47,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_data_qos [2022-11-19 06:48:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_stop_tx_beacon [2022-11-19 06:48:47,412 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_stop_tx_beacon [2022-11-19 06:48:47,412 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_byte [2022-11-19 06:48:47,412 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_byte [2022-11-19 06:48:47,412 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_word [2022-11-19 06:48:47,412 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_word [2022-11-19 06:48:47,412 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-19 06:48:47,412 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-19 06:48:47,412 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_llt_write [2022-11-19 06:48:47,413 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_llt_write [2022-11-19 06:48:47,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 06:48:47,413 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 06:48:47,413 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_suspend [2022-11-19 06:48:47,413 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_suspend [2022-11-19 06:48:47,413 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_watchdog [2022-11-19 06:48:47,413 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_watchdog [2022-11-19 06:48:47,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-19 06:48:47,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-19 06:48:47,414 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_bw_mode [2022-11-19 06:48:47,414 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_bw_mode [2022-11-19 06:48:47,414 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_fast_ant_training [2022-11-19 06:48:47,414 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_fast_ant_training [2022-11-19 06:48:47,414 INFO L130 BoogieDeclarations]: Found specification of procedure sim_comp [2022-11-19 06:48:47,414 INFO L138 BoogieDeclarations]: Found implementation of procedure sim_comp [2022-11-19 06:48:47,414 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_deinit_sw_vars [2022-11-19 06:48:47,414 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_deinit_sw_vars [2022-11-19 06:48:47,415 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_tx_polling [2022-11-19 06:48:47,415 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_tx_polling [2022-11-19 06:48:47,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 06:48:47,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2022-11-19 06:48:47,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2022-11-19 06:48:47,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 06:48:47,420 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_phy_pi_mode_switch [2022-11-19 06:48:47,420 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_phy_pi_mode_switch [2022-11-19 06:48:47,420 INFO L130 BoogieDeclarations]: Found specification of procedure cal_bit_shift [2022-11-19 06:48:47,420 INFO L138 BoogieDeclarations]: Found implementation of procedure cal_bit_shift [2022-11-19 06:48:47,421 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_enable_fw_download [2022-11-19 06:48:47,421 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_enable_fw_download [2022-11-19 06:48:47,421 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_ctl [2022-11-19 06:48:47,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_ctl [2022-11-19 06:48:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2022-11-19 06:48:47,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2022-11-19 06:48:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 06:48:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-19 06:48:47,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-19 06:48:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-19 06:48:47,424 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-19 06:48:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-19 06:48:47,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-19 06:48:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_fw_ps_rf_on [2022-11-19 06:48:47,424 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_fw_ps_rf_on [2022-11-19 06:48:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-19 06:48:47,424 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-19 06:48:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count___6 [2022-11-19 06:48:47,425 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count___6 [2022-11-19 06:48:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 06:48:47,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 06:48:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_hw_init [2022-11-19 06:48:47,425 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_hw_init [2022-11-19 06:48:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure check_cond [2022-11-19 06:48:47,425 INFO L138 BoogieDeclarations]: Found implementation of procedure check_cond [2022-11-19 06:48:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_get_rfreg [2022-11-19 06:48:47,425 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_get_rfreg [2022-11-19 06:48:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_initial_gain_min_pwdb [2022-11-19 06:48:47,426 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_initial_gain_min_pwdb [2022-11-19 06:48:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_phy_iq_calibrate [2022-11-19 06:48:47,426 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_phy_iq_calibrate [2022-11-19 06:48:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2022-11-19 06:48:47,426 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2022-11-19 06:48:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_resume [2022-11-19 06:48:47,426 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_resume [2022-11-19 06:48:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2022-11-19 06:48:47,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2022-11-19 06:48:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_get_hw_reg [2022-11-19 06:48:47,427 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_get_hw_reg [2022-11-19 06:48:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_phy_scan_operation_backup [2022-11-19 06:48:47,427 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_phy_scan_operation_backup [2022-11-19 06:48:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-19 06:48:47,427 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-19 06:48:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-19 06:48:47,427 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-19 06:48:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_fill_h2c_cmd [2022-11-19 06:48:47,428 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_fill_h2c_cmd [2022-11-19 06:48:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_fw_page_write [2022-11-19 06:48:47,428 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_fw_page_write [2022-11-19 06:48:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_query_rxpwrpercentage [2022-11-19 06:48:47,428 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_query_rxpwrpercentage [2022-11-19 06:48:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_update_tx_ant [2022-11-19 06:48:47,428 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_update_tx_ant [2022-11-19 06:48:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 06:48:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure reload_adda [2022-11-19 06:48:47,429 INFO L138 BoogieDeclarations]: Found implementation of procedure reload_adda [2022-11-19 06:48:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 06:48:47,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 06:48:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_get_bbreg [2022-11-19 06:48:47,429 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_get_bbreg [2022-11-19 06:48:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_read_eeprom_info [2022-11-19 06:48:47,429 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_read_eeprom_info [2022-11-19 06:48:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_fw_clock_off [2022-11-19 06:48:47,429 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_fw_clock_off [2022-11-19 06:48:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_bbreg [2022-11-19 06:48:47,430 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_bbreg [2022-11-19 06:48:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-19 06:48:47,430 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-19 06:48:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_resume_tx_beacon [2022-11-19 06:48:47,430 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_resume_tx_beacon [2022-11-19 06:48:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_init_sw_vars [2022-11-19 06:48:47,430 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_init_sw_vars [2022-11-19 06:48:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-11-19 06:48:47,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-11-19 06:48:47,431 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88_config_s [2022-11-19 06:48:47,431 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88_config_s [2022-11-19 06:48:47,431 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-11-19 06:48:47,431 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-11-19 06:48:47,431 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-11-19 06:48:47,431 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-11-19 06:48:47,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 06:48:47,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 06:48:47,432 INFO L130 BoogieDeclarations]: Found specification of procedure config_bb_with_header [2022-11-19 06:48:47,432 INFO L138 BoogieDeclarations]: Found implementation of procedure config_bb_with_header [2022-11-19 06:48:47,432 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-19 06:48:47,432 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-19 06:48:47,432 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_dword [2022-11-19 06:48:47,432 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_dword [2022-11-19 06:48:47,432 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_media_status [2022-11-19 06:48:47,432 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_media_status [2022-11-19 06:48:47,432 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_fwlps_leave [2022-11-19 06:48:47,433 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_fwlps_leave [2022-11-19 06:48:47,433 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-19 06:48:47,433 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-19 06:48:47,433 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-19 06:48:47,433 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-19 06:48:47,433 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_tx_fill_cmddesc [2022-11-19 06:48:47,433 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_tx_fill_cmddesc [2022-11-19 06:48:47,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:48:47,433 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_disconnect [2022-11-19 06:48:47,434 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_disconnect [2022-11-19 06:48:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_sw_chnl_cmdarray [2022-11-19 06:48:47,434 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_sw_chnl_cmdarray [2022-11-19 06:48:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-19 06:48:47,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-19 06:48:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_fw_clock_on [2022-11-19 06:48:47,434 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_fw_clock_on [2022-11-19 06:48:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-19 06:48:47,434 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-19 06:48:49,756 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:48:49,761 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:48:54,107 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 06:50:34,873 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-19 06:50:35,449 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:50:48,542 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:50:48,542 INFO L300 CfgBuilder]: Removed 19 assume(true) statements. [2022-11-19 06:50:48,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:50:48 BoogieIcfgContainer [2022-11-19 06:50:48,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:50:48,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:50:48,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:50:48,560 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:50:48,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:48:34" (1/3) ... [2022-11-19 06:50:48,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2649f46b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:50:48, skipping insertion in model container [2022-11-19 06:50:48,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:48:44" (2/3) ... [2022-11-19 06:50:48,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2649f46b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:50:48, skipping insertion in model container [2022-11-19 06:50:48,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:50:48" (3/3) ... [2022-11-19 06:50:48,562 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i [2022-11-19 06:50:48,582 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:50:48,582 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-19 06:50:48,718 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:50:48,725 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;@61b5eb6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:50:48,725 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-19 06:50:48,744 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) [2022-11-19 06:50:48,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-11-19 06:50:48,773 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:50:48,774 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] [2022-11-19 06:50:48,774 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] === [2022-11-19 06:50:48,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:50:48,779 INFO L85 PathProgramCache]: Analyzing trace with hash -653965302, now seen corresponding path program 1 times [2022-11-19 06:50:48,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:50:48,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481246804] [2022-11-19 06:50:48,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:50:48,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:50:50,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:50:51,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2865 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2865 trivial. 0 not checked. [2022-11-19 06:50:51,392 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:50:51,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481246804] [2022-11-19 06:50:51,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481246804] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:50:51,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:50:51,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:50:51,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382820051] [2022-11-19 06:50:51,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:50:51,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:50:51,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:50:51,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:50:51,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:50:51,460 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) [2022-11-19 06:50:54,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:50:57,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:51:03,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:51:05,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:51:09,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:51:11,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:51:14,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:51:16,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:51:19,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:51:21,247 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 [] [2022-11-19 06:51:22,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:51:22,962 INFO L93 Difference]: Finished difference Result 11439 states and 17652 transitions. [2022-11-19 06:51:22,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:51:22,966 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 [2022-11-19 06:51:22,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:51:23,054 INFO L225 Difference]: With dead ends: 11439 [2022-11-19 06:51:23,054 INFO L226 Difference]: Without dead ends: 6676 [2022-11-19 06:51:23,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:51:23,099 INFO L413 NwaCegarLoop]: 6705 mSDtfsCounter, 5574 mSDsluCounter, 5361 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 21 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5580 SdHoareTripleChecker+Valid, 12066 SdHoareTripleChecker+Invalid, 1237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.8s IncrementalHoareTripleChecker+Time [2022-11-19 06:51:23,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5580 Valid, 12066 Invalid, 1237 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 1208 Invalid, 8 Unknown, 0 Unchecked, 30.8s Time] [2022-11-19 06:51:23,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6676 states. [2022-11-19 06:51:23,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6676 to 6668. [2022-11-19 06:51:23,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6668 states, 4258 states have (on average 1.356270549553781) internal successors, (5775), 4390 states have internal predecessors, (5775), 2173 states have call successors, (2173), 236 states have call predecessors, (2173), 235 states have return successors, (2174), 2104 states have call predecessors, (2174), 2170 states have call successors, (2174) [2022-11-19 06:51:23,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6668 states to 6668 states and 10122 transitions. [2022-11-19 06:51:23,947 INFO L78 Accepts]: Start accepts. Automaton has 6668 states and 10122 transitions. Word has length 293 [2022-11-19 06:51:23,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:51:23,952 INFO L495 AbstractCegarLoop]: Abstraction has 6668 states and 10122 transitions. [2022-11-19 06:51:23,952 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) [2022-11-19 06:51:23,953 INFO L276 IsEmpty]: Start isEmpty. Operand 6668 states and 10122 transitions. [2022-11-19 06:51:23,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-11-19 06:51:23,967 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:51:23,967 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] [2022-11-19 06:51:23,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:51:23,968 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] === [2022-11-19 06:51:23,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:51:23,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1898418554, now seen corresponding path program 1 times [2022-11-19 06:51:23,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:51:23,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463335641] [2022-11-19 06:51:23,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:51:23,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:51:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:51:25,837 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2862 trivial. 0 not checked. [2022-11-19 06:51:25,837 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:51:25,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463335641] [2022-11-19 06:51:25,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463335641] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:51:25,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:51:25,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:51:25,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090971338] [2022-11-19 06:51:25,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:51:25,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:51:25,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:51:25,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:51:25,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:51:25,843 INFO L87 Difference]: Start difference. First operand 6668 states and 10122 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) [2022-11-19 06:51:28,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:51:31,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:51:35,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:51:39,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:51:41,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:51:43,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:51:46,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:51:48,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:51:50,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:51:50,467 INFO L93 Difference]: Finished difference Result 16456 states and 24989 transitions. [2022-11-19 06:51:50,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:51:50,483 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 [2022-11-19 06:51:50,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:51:50,558 INFO L225 Difference]: With dead ends: 16456 [2022-11-19 06:51:50,559 INFO L226 Difference]: Without dead ends: 9843 [2022-11-19 06:51:50,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:51:50,596 INFO L413 NwaCegarLoop]: 5787 mSDtfsCounter, 4841 mSDsluCounter, 4685 mSDsCounter, 0 mSdLazyCounter, 1096 mSolverCounterSat, 16 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4845 SdHoareTripleChecker+Valid, 10472 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1096 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:51:50,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4845 Valid, 10472 Invalid, 1119 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 1096 Invalid, 7 Unknown, 0 Unchecked, 24.1s Time] [2022-11-19 06:51:50,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9843 states. [2022-11-19 06:51:51,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9843 to 9829. [2022-11-19 06:51:51,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9829 states, 6286 states have (on average 1.3550747693286669) internal successors, (8518), 6489 states have internal predecessors, (8518), 3193 states have call successors, (3193), 350 states have call predecessors, (3193), 348 states have return successors, (3196), 3084 states have call predecessors, (3196), 3190 states have call successors, (3196) [2022-11-19 06:51:51,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9829 states to 9829 states and 14907 transitions. [2022-11-19 06:51:51,690 INFO L78 Accepts]: Start accepts. Automaton has 9829 states and 14907 transitions. Word has length 301 [2022-11-19 06:51:51,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:51:51,693 INFO L495 AbstractCegarLoop]: Abstraction has 9829 states and 14907 transitions. [2022-11-19 06:51:51,694 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) [2022-11-19 06:51:51,694 INFO L276 IsEmpty]: Start isEmpty. Operand 9829 states and 14907 transitions. [2022-11-19 06:51:51,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-11-19 06:51:51,707 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:51:51,708 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] [2022-11-19 06:51:51,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 06:51:51,708 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] === [2022-11-19 06:51:51,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:51:51,711 INFO L85 PathProgramCache]: Analyzing trace with hash -703994231, now seen corresponding path program 1 times [2022-11-19 06:51:51,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:51:51,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091640404] [2022-11-19 06:51:51,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:51:51,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:51:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:51:53,415 INFO L134 CoverageAnalysis]: Checked inductivity of 2865 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2865 trivial. 0 not checked. [2022-11-19 06:51:53,415 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:51:53,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091640404] [2022-11-19 06:51:53,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091640404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:51:53,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:51:53,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:51:53,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385483641] [2022-11-19 06:51:53,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:51:53,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:51:53,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:51:53,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:51:53,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:51:53,418 INFO L87 Difference]: Start difference. First operand 9829 states and 14907 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) [2022-11-19 06:51:56,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:51:59,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:52:02,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:52:05,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:52:08,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:52:10,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:52:12,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:52:14,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:52:16,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:52:17,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:52:17,497 INFO L93 Difference]: Finished difference Result 25927 states and 39337 transitions. [2022-11-19 06:52:17,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:52:17,498 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 [2022-11-19 06:52:17,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:52:17,607 INFO L225 Difference]: With dead ends: 25927 [2022-11-19 06:52:17,607 INFO L226 Difference]: Without dead ends: 16153 [2022-11-19 06:52:17,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:52:17,652 INFO L413 NwaCegarLoop]: 5859 mSDtfsCounter, 4866 mSDsluCounter, 4696 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 12 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4870 SdHoareTripleChecker+Valid, 10555 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.4s IncrementalHoareTripleChecker+Time [2022-11-19 06:52:17,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4870 Valid, 10555 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1104 Invalid, 7 Unknown, 0 Unchecked, 23.4s Time] [2022-11-19 06:52:17,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16153 states. [2022-11-19 06:52:19,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16153 to 16135. [2022-11-19 06:52:19,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16135 states, 10323 states have (on average 1.3541606122251284) internal successors, (13979), 10669 states have internal predecessors, (13979), 5240 states have call successors, (5240), 573 states have call predecessors, (5240), 570 states have return successors, (5247), 5051 states have call predecessors, (5247), 5237 states have call successors, (5247) [2022-11-19 06:52:19,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16135 states to 16135 states and 24466 transitions. [2022-11-19 06:52:19,261 INFO L78 Accepts]: Start accepts. Automaton has 16135 states and 24466 transitions. Word has length 320 [2022-11-19 06:52:19,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:52:19,262 INFO L495 AbstractCegarLoop]: Abstraction has 16135 states and 24466 transitions. [2022-11-19 06:52:19,262 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) [2022-11-19 06:52:19,263 INFO L276 IsEmpty]: Start isEmpty. Operand 16135 states and 24466 transitions. [2022-11-19 06:52:19,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2022-11-19 06:52:19,276 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:52:19,281 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] [2022-11-19 06:52:19,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 06:52:19,281 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] === [2022-11-19 06:52:19,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:52:19,285 INFO L85 PathProgramCache]: Analyzing trace with hash 978856993, now seen corresponding path program 1 times [2022-11-19 06:52:19,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:52:19,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075650047] [2022-11-19 06:52:19,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:52:19,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:52:19,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:52:22,647 INFO L134 CoverageAnalysis]: Checked inductivity of 3070 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3070 trivial. 0 not checked. [2022-11-19 06:52:22,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:52:22,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075650047] [2022-11-19 06:52:22,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075650047] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:52:22,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:52:22,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:52:22,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811893330] [2022-11-19 06:52:22,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:52:22,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:52:22,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:52:22,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:52:22,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:52:22,650 INFO L87 Difference]: Start difference. First operand 16135 states and 24466 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) [2022-11-19 06:52:25,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:52:29,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:52:32,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:52:35,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:52:38,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:52:41,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:52:44,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:52:45,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:52:48,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:52:50,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:52:52,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:52:54,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:52:54,052 INFO L93 Difference]: Finished difference Result 28989 states and 43964 transitions. [2022-11-19 06:52:54,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:52:54,053 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 [2022-11-19 06:52:54,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:52:54,228 INFO L225 Difference]: With dead ends: 28989 [2022-11-19 06:52:54,229 INFO L226 Difference]: Without dead ends: 28950 [2022-11-19 06:52:54,248 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 [2022-11-19 06:52:54,253 INFO L413 NwaCegarLoop]: 5931 mSDtfsCounter, 4963 mSDsluCounter, 10568 mSDsCounter, 0 mSdLazyCounter, 1657 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4967 SdHoareTripleChecker+Valid, 16499 SdHoareTripleChecker+Invalid, 1665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1657 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.5s IncrementalHoareTripleChecker+Time [2022-11-19 06:52:54,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4967 Valid, 16499 Invalid, 1665 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1657 Invalid, 8 Unknown, 0 Unchecked, 30.5s Time] [2022-11-19 06:52:54,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28950 states. [2022-11-19 06:52:56,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28950 to 28943. [2022-11-19 06:52:57,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28943 states, 18523 states have (on average 1.3542622685310155) internal successors, (25085), 19139 states have internal predecessors, (25085), 9393 states have call successors, (9393), 1028 states have call predecessors, (9393), 1025 states have return successors, (9408), 9062 states have call predecessors, (9408), 9390 states have call successors, (9408) [2022-11-19 06:52:57,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28943 states to 28943 states and 43886 transitions. [2022-11-19 06:52:57,155 INFO L78 Accepts]: Start accepts. Automaton has 28943 states and 43886 transitions. Word has length 337 [2022-11-19 06:52:57,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:52:57,156 INFO L495 AbstractCegarLoop]: Abstraction has 28943 states and 43886 transitions. [2022-11-19 06:52:57,157 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) [2022-11-19 06:52:57,157 INFO L276 IsEmpty]: Start isEmpty. Operand 28943 states and 43886 transitions. [2022-11-19 06:52:57,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-11-19 06:52:57,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:52:57,184 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] [2022-11-19 06:52:57,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 06:52:57,184 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] === [2022-11-19 06:52:57,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:52:57,185 INFO L85 PathProgramCache]: Analyzing trace with hash 25787081, now seen corresponding path program 1 times [2022-11-19 06:52:57,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:52:57,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324012421] [2022-11-19 06:52:57,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:52:57,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:52:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:52:59,254 INFO L134 CoverageAnalysis]: Checked inductivity of 3057 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3054 trivial. 0 not checked. [2022-11-19 06:52:59,255 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:52:59,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324012421] [2022-11-19 06:52:59,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324012421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:52:59,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:52:59,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:52:59,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560708514] [2022-11-19 06:52:59,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:52:59,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:52:59,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:52:59,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:52:59,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:52:59,259 INFO L87 Difference]: Start difference. First operand 28943 states and 43886 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) [2022-11-19 06:53:02,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:53:05,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:53:09,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:53:12,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:53:16,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:53:18,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:53:20,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:53:23,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:53:25,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:53:27,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:53:27,121 INFO L93 Difference]: Finished difference Result 67367 states and 102191 transitions. [2022-11-19 06:53:27,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:53:27,122 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 [2022-11-19 06:53:27,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:53:27,386 INFO L225 Difference]: With dead ends: 67367 [2022-11-19 06:53:27,386 INFO L226 Difference]: Without dead ends: 41573 [2022-11-19 06:53:27,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:53:27,490 INFO L413 NwaCegarLoop]: 9070 mSDtfsCounter, 4807 mSDsluCounter, 4683 mSDsCounter, 0 mSdLazyCounter, 1551 mSolverCounterSat, 15 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4813 SdHoareTripleChecker+Valid, 13753 SdHoareTripleChecker+Invalid, 1574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1551 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.5s IncrementalHoareTripleChecker+Time [2022-11-19 06:53:27,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4813 Valid, 13753 Invalid, 1574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1551 Invalid, 8 Unknown, 0 Unchecked, 26.5s Time] [2022-11-19 06:53:27,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41573 states. [2022-11-19 06:53:30,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41573 to 41551. [2022-11-19 06:53:30,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41551 states, 26597 states have (on average 1.3540248900251908) internal successors, (36013), 27491 states have internal predecessors, (36013), 13479 states have call successors, (13479), 1478 states have call predecessors, (13479), 1473 states have return successors, (13510), 12992 states have call predecessors, (13510), 13476 states have call successors, (13510) [2022-11-19 06:53:31,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41551 states to 41551 states and 63002 transitions. [2022-11-19 06:53:31,124 INFO L78 Accepts]: Start accepts. Automaton has 41551 states and 63002 transitions. Word has length 350 [2022-11-19 06:53:31,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:53:31,125 INFO L495 AbstractCegarLoop]: Abstraction has 41551 states and 63002 transitions. [2022-11-19 06:53:31,125 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) [2022-11-19 06:53:31,125 INFO L276 IsEmpty]: Start isEmpty. Operand 41551 states and 63002 transitions. [2022-11-19 06:53:31,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2022-11-19 06:53:31,157 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:53:31,157 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] [2022-11-19 06:53:31,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 06:53:31,158 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] === [2022-11-19 06:53:31,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:53:31,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1436493400, now seen corresponding path program 1 times [2022-11-19 06:53:31,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:53:31,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321683532] [2022-11-19 06:53:31,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:53:31,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:53:34,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:53:37,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2939 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2936 trivial. 0 not checked. [2022-11-19 06:53:37,392 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:53:37,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321683532] [2022-11-19 06:53:37,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321683532] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:53:37,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:53:37,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:53:37,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235295040] [2022-11-19 06:53:37,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:53:37,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:53:37,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:53:37,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:53:37,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:53:37,396 INFO L87 Difference]: Start difference. First operand 41551 states and 63002 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) [2022-11-19 06:53:40,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:53:45,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:53:48,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:53:50,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:53:52,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:53:54,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:53:57,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:53:59,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:54:02,549 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 [] [2022-11-19 06:54:04,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:54:04,412 INFO L93 Difference]: Finished difference Result 106820 states and 161655 transitions. [2022-11-19 06:54:04,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:54:04,412 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 [2022-11-19 06:54:04,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:54:04,874 INFO L225 Difference]: With dead ends: 106820 [2022-11-19 06:54:04,874 INFO L226 Difference]: Without dead ends: 65324 [2022-11-19 06:54:05,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:54:05,054 INFO L413 NwaCegarLoop]: 5540 mSDtfsCounter, 3218 mSDsluCounter, 4615 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 15 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3221 SdHoareTripleChecker+Valid, 10155 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:54:05,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3221 Valid, 10155 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1195 Invalid, 8 Unknown, 0 Unchecked, 25.0s Time] [2022-11-19 06:54:05,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65324 states. [2022-11-19 06:54:09,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65324 to 65281. [2022-11-19 06:54:09,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65281 states, 41585 states have (on average 1.3466875075147289) internal successors, (56002), 43086 states have internal predecessors, (56002), 21235 states have call successors, (21235), 2468 states have call predecessors, (21235), 2459 states have return successors, (21288), 20405 states have call predecessors, (21288), 21232 states have call successors, (21288) [2022-11-19 06:54:09,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65281 states to 65281 states and 98525 transitions. [2022-11-19 06:54:09,827 INFO L78 Accepts]: Start accepts. Automaton has 65281 states and 98525 transitions. Word has length 361 [2022-11-19 06:54:09,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:54:09,828 INFO L495 AbstractCegarLoop]: Abstraction has 65281 states and 98525 transitions. [2022-11-19 06:54:09,829 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) [2022-11-19 06:54:09,829 INFO L276 IsEmpty]: Start isEmpty. Operand 65281 states and 98525 transitions. [2022-11-19 06:54:09,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2022-11-19 06:54:09,878 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:54:09,879 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] [2022-11-19 06:54:09,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 06:54:09,879 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] === [2022-11-19 06:54:09,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:54:09,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1354539134, now seen corresponding path program 1 times [2022-11-19 06:54:09,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:54:09,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508795196] [2022-11-19 06:54:09,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:54:09,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:54:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:54:11,282 INFO L134 CoverageAnalysis]: Checked inductivity of 3159 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3152 trivial. 0 not checked. [2022-11-19 06:54:11,283 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:54:11,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508795196] [2022-11-19 06:54:11,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508795196] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:54:11,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:54:11,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:54:11,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079263846] [2022-11-19 06:54:11,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:54:11,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:54:11,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:54:11,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:54:11,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:54:11,286 INFO L87 Difference]: Start difference. First operand 65281 states and 98525 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) [2022-11-19 06:54:13,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:54:19,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:54:22,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:54:25,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:54:27,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:54:30,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:54:33,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:54:34,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:54:37,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:54:40,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:54:40,017 INFO L93 Difference]: Finished difference Result 159649 states and 241064 transitions. [2022-11-19 06:54:40,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:54:40,020 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 [2022-11-19 06:54:40,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:54:40,818 INFO L225 Difference]: With dead ends: 159649 [2022-11-19 06:54:40,818 INFO L226 Difference]: Without dead ends: 96407 [2022-11-19 06:54:41,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:54:41,044 INFO L413 NwaCegarLoop]: 9094 mSDtfsCounter, 4839 mSDsluCounter, 4694 mSDsCounter, 0 mSdLazyCounter, 1548 mSolverCounterSat, 9 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4845 SdHoareTripleChecker+Valid, 13788 SdHoareTripleChecker+Invalid, 1565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1548 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.4s IncrementalHoareTripleChecker+Time [2022-11-19 06:54:41,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4845 Valid, 13788 Invalid, 1565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1548 Invalid, 8 Unknown, 0 Unchecked, 25.4s Time] [2022-11-19 06:54:41,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96407 states. [2022-11-19 06:54:47,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96407 to 96365. [2022-11-19 06:54:47,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96365 states, 61401 states have (on average 1.3465904464096676) internal successors, (82682), 63642 states have internal predecessors, (82682), 31339 states have call successors, (31339), 3636 states have call predecessors, (31339), 3623 states have return successors, (31428), 30089 states have call predecessors, (31428), 31336 states have call successors, (31428) [2022-11-19 06:54:47,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96365 states to 96365 states and 145449 transitions. [2022-11-19 06:54:47,901 INFO L78 Accepts]: Start accepts. Automaton has 96365 states and 145449 transitions. Word has length 381 [2022-11-19 06:54:47,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:54:47,902 INFO L495 AbstractCegarLoop]: Abstraction has 96365 states and 145449 transitions. [2022-11-19 06:54:47,902 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) [2022-11-19 06:54:47,902 INFO L276 IsEmpty]: Start isEmpty. Operand 96365 states and 145449 transitions. [2022-11-19 06:54:47,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2022-11-19 06:54:47,986 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:54:47,987 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] [2022-11-19 06:54:47,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 06:54:47,987 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] === [2022-11-19 06:54:47,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:54:47,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1898001620, now seen corresponding path program 1 times [2022-11-19 06:54:47,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:54:47,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656752805] [2022-11-19 06:54:47,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:54:47,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:54:48,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:54:51,266 INFO L134 CoverageAnalysis]: Checked inductivity of 3311 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3311 trivial. 0 not checked. [2022-11-19 06:54:51,266 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:54:51,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656752805] [2022-11-19 06:54:51,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656752805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:54:51,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:54:51,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:54:51,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134396666] [2022-11-19 06:54:51,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:54:51,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:54:51,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:54:51,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:54:51,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:54:51,268 INFO L87 Difference]: Start difference. First operand 96365 states and 145449 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) [2022-11-19 06:54:54,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:54:58,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:02,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:05,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:08,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:10,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:12,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:15,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:18,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:21,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:23,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:25,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:55:25,283 INFO L93 Difference]: Finished difference Result 96412 states and 145499 transitions. [2022-11-19 06:55:25,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:55:25,284 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 [2022-11-19 06:55:25,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:55:25,781 INFO L225 Difference]: With dead ends: 96412 [2022-11-19 06:55:25,782 INFO L226 Difference]: Without dead ends: 96410 [2022-11-19 06:55:25,831 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 [2022-11-19 06:55:25,831 INFO L413 NwaCegarLoop]: 5849 mSDtfsCounter, 4914 mSDsluCounter, 10484 mSDsCounter, 0 mSdLazyCounter, 1611 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4918 SdHoareTripleChecker+Valid, 16333 SdHoareTripleChecker+Invalid, 1622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1611 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.5s IncrementalHoareTripleChecker+Time [2022-11-19 06:55:25,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4918 Valid, 16333 Invalid, 1622 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1611 Invalid, 10 Unknown, 0 Unchecked, 31.5s Time] [2022-11-19 06:55:25,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96410 states. [2022-11-19 06:55:32,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96410 to 96365. [2022-11-19 06:55:32,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96365 states, 61401 states have (on average 1.346427582612661) internal successors, (82672), 63642 states have internal predecessors, (82672), 31339 states have call successors, (31339), 3636 states have call predecessors, (31339), 3623 states have return successors, (31428), 30089 states have call predecessors, (31428), 31336 states have call successors, (31428) [2022-11-19 06:55:32,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96365 states to 96365 states and 145439 transitions. [2022-11-19 06:55:32,697 INFO L78 Accepts]: Start accepts. Automaton has 96365 states and 145439 transitions. Word has length 404 [2022-11-19 06:55:32,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:55:32,698 INFO L495 AbstractCegarLoop]: Abstraction has 96365 states and 145439 transitions. [2022-11-19 06:55:32,698 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) [2022-11-19 06:55:32,698 INFO L276 IsEmpty]: Start isEmpty. Operand 96365 states and 145439 transitions. [2022-11-19 06:55:32,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2022-11-19 06:55:32,761 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:55:32,761 INFO L195 NwaCegarLoop]: trace histogram [33, 27, 27, 27, 27, 27, 27, 8, 8, 4, 4, 4, 3, 3, 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] [2022-11-19 06:55:32,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 06:55:32,762 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] === [2022-11-19 06:55:32,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:55:32,762 INFO L85 PathProgramCache]: Analyzing trace with hash -560015225, now seen corresponding path program 1 times [2022-11-19 06:55:32,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:55:32,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456822197] [2022-11-19 06:55:32,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:32,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:55:34,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:36,593 INFO L134 CoverageAnalysis]: Checked inductivity of 3274 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 3254 trivial. 0 not checked. [2022-11-19 06:55:36,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:55:36,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456822197] [2022-11-19 06:55:36,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456822197] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:55:36,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:55:36,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:55:36,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007069899] [2022-11-19 06:55:36,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:55:36,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:55:36,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:55:36,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:55:36,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:55:36,597 INFO L87 Difference]: Start difference. First operand 96365 states and 145439 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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) [2022-11-19 06:55:39,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:44,939 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 []