./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-rndis_wlan.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2e2a11-795a-4e0d-a8a4-47472f2f3b72/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2e2a11-795a-4e0d-a8a4-47472f2f3b72/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2e2a11-795a-4e0d-a8a4-47472f2f3b72/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2e2a11-795a-4e0d-a8a4-47472f2f3b72/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rndis_wlan.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2e2a11-795a-4e0d-a8a4-47472f2f3b72/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2e2a11-795a-4e0d-a8a4-47472f2f3b72/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 760ec64c2425d439883c5d1074b52af06ed0343ac750305f469404408ecd0aa4 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 02:30:46,177 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:30:46,180 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:30:46,221 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:30:46,222 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:30:46,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:30:46,231 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:30:46,236 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:30:46,239 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:30:46,244 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:30:46,245 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:30:46,246 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:30:46,247 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:30:46,248 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:30:46,249 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:30:46,250 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:30:46,251 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:30:46,251 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:30:46,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:30:46,255 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:30:46,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:30:46,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:30:46,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:30:46,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:30:46,280 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:30:46,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:30:46,281 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:30:46,282 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:30:46,284 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:30:46,285 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:30:46,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:30:46,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:30:46,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:30:46,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:30:46,290 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:30:46,290 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:30:46,291 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:30:46,291 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:30:46,292 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:30:46,293 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:30:46,294 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:30:46,295 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2e2a11-795a-4e0d-a8a4-47472f2f3b72/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 02:30:46,319 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:30:46,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:30:46,323 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:30:46,323 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:30:46,324 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:30:46,324 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:30:46,324 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:30:46,325 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:30:46,325 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:30:46,325 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:30:46,326 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:30:46,326 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:30:46,327 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:30:46,327 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:30:46,327 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:30:46,327 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:30:46,328 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:30:46,328 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:30:46,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:30:46,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:30:46,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:30:46,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:30:46,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:30:46,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:30:46,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:30:46,330 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:30:46,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:30:46,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:30:46,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:30:46,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:30:46,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:30:46,332 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:30:46,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:30:46,333 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:30:46,333 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:30:46,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:30:46,333 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:30:46,333 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:30:46,334 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_3b2e2a11-795a-4e0d-a8a4-47472f2f3b72/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2e2a11-795a-4e0d-a8a4-47472f2f3b72/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 760ec64c2425d439883c5d1074b52af06ed0343ac750305f469404408ecd0aa4 [2022-11-22 02:30:46,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:30:46,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:30:46,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:30:46,693 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:30:46,693 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:30:46,694 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2e2a11-795a-4e0d-a8a4-47472f2f3b72/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rndis_wlan.cil.i [2022-11-22 02:30:49,711 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:30:50,441 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:30:50,442 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2e2a11-795a-4e0d-a8a4-47472f2f3b72/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rndis_wlan.cil.i [2022-11-22 02:30:50,503 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2e2a11-795a-4e0d-a8a4-47472f2f3b72/bin/utaipan-g80aRyZoba/data/f0f345c01/da504995df7648758c829055086f7377/FLAG888b666ad [2022-11-22 02:30:50,522 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2e2a11-795a-4e0d-a8a4-47472f2f3b72/bin/utaipan-g80aRyZoba/data/f0f345c01/da504995df7648758c829055086f7377 [2022-11-22 02:30:50,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:30:50,527 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:30:50,529 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:30:50,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:30:50,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:30:50,535 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:30:50" (1/1) ... [2022-11-22 02:30:50,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1266f924 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:50, skipping insertion in model container [2022-11-22 02:30:50,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:30:50" (1/1) ... [2022-11-22 02:30:50,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:30:50,766 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:30:53,871 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2e2a11-795a-4e0d-a8a4-47472f2f3b72/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rndis_wlan.cil.i[464274,464287] [2022-11-22 02:30:53,878 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2e2a11-795a-4e0d-a8a4-47472f2f3b72/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rndis_wlan.cil.i[464421,464434] [2022-11-22 02:30:53,879 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2e2a11-795a-4e0d-a8a4-47472f2f3b72/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rndis_wlan.cil.i[464560,464573] [2022-11-22 02:30:53,879 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2e2a11-795a-4e0d-a8a4-47472f2f3b72/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rndis_wlan.cil.i[464718,464731] [2022-11-22 02:30:53,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:30:53,956 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:30:54,518 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2e2a11-795a-4e0d-a8a4-47472f2f3b72/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rndis_wlan.cil.i[464274,464287] [2022-11-22 02:30:54,519 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2e2a11-795a-4e0d-a8a4-47472f2f3b72/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rndis_wlan.cil.i[464421,464434] [2022-11-22 02:30:54,519 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2e2a11-795a-4e0d-a8a4-47472f2f3b72/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rndis_wlan.cil.i[464560,464573] [2022-11-22 02:30:54,520 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2e2a11-795a-4e0d-a8a4-47472f2f3b72/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rndis_wlan.cil.i[464718,464731] [2022-11-22 02:30:54,525 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:30:54,781 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:30:54,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:54 WrapperNode [2022-11-22 02:30:54,781 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:30:54,783 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:30:54,783 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:30:54,783 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:30:54,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:54" (1/1) ... [2022-11-22 02:30:54,950 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:54" (1/1) ... [2022-11-22 02:30:55,250 INFO L138 Inliner]: procedures = 396, calls = 4554, calls flagged for inlining = 219, calls inlined = 198, statements flattened = 8988 [2022-11-22 02:30:55,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:30:55,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:30:55,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:30:55,253 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:30:55,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:54" (1/1) ... [2022-11-22 02:30:55,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:54" (1/1) ... [2022-11-22 02:30:55,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:54" (1/1) ... [2022-11-22 02:30:55,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:54" (1/1) ... [2022-11-22 02:30:55,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:54" (1/1) ... [2022-11-22 02:30:55,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:54" (1/1) ... [2022-11-22 02:30:55,624 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:54" (1/1) ... [2022-11-22 02:30:55,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:54" (1/1) ... [2022-11-22 02:30:55,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:30:55,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:30:55,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:30:55,682 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:30:55,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:54" (1/1) ... [2022-11-22 02:30:55,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:30:55,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2e2a11-795a-4e0d-a8a4-47472f2f3b72/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:30:55,711 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2e2a11-795a-4e0d-a8a4-47472f2f3b72/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:30:55,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2e2a11-795a-4e0d-a8a4-47472f2f3b72/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:30:55,766 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_reset [2022-11-22 02:30:55,766 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_reset [2022-11-22 02:30:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2022-11-22 02:30:55,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2022-11-22 02:30:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_stop [2022-11-22 02:30:55,767 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_stop [2022-11-22 02:30:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_config_parameter_str [2022-11-22 02:30:55,767 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_config_parameter_str [2022-11-22 02:30:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 02:30:55,768 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 02:30:55,768 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_inform_bss [2022-11-22 02:30:55,768 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_inform_bss [2022-11-22 02:30:55,768 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_pause_rx [2022-11-22 02:30:55,768 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_pause_rx [2022-11-22 02:30:55,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 02:30:55,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 02:30:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_tx_fixup [2022-11-22 02:30:55,769 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_tx_fixup [2022-11-22 02:30:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_bind [2022-11-22 02:30:55,770 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_bind [2022-11-22 02:30:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_set_multicast_list [2022-11-22 02:30:55,771 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_set_multicast_list [2022-11-22 02:30:55,771 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_purge_paused_rxq [2022-11-22 02:30:55,771 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_purge_paused_rxq [2022-11-22 02:30:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_unbind [2022-11-22 02:30:55,772 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_unbind [2022-11-22 02:30:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure set_encr_mode [2022-11-22 02:30:55,772 INFO L138 BoogieDeclarations]: Found implementation of procedure set_encr_mode [2022-11-22 02:30:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure get_rndis_wlan_priv [2022-11-22 02:30:55,772 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rndis_wlan_priv [2022-11-22 02:30:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 02:30:55,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 02:30:55,773 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2022-11-22 02:30:55,773 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2022-11-22 02:30:55,773 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 02:30:55,773 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 02:30:55,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 02:30:55,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 02:30:55,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:30:55,774 INFO L130 BoogieDeclarations]: Found specification of procedure set_infra_mode [2022-11-22 02:30:55,774 INFO L138 BoogieDeclarations]: Found implementation of procedure set_infra_mode [2022-11-22 02:30:55,774 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_command [2022-11-22 02:30:55,774 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_command [2022-11-22 02:30:55,775 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_scan_done [2022-11-22 02:30:55,776 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_scan_done [2022-11-22 02:30:55,776 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-22 02:30:55,776 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-22 02:30:55,776 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-22 02:30:55,776 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-22 02:30:55,776 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_fill_station_info [2022-11-22 02:30:55,777 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_fill_station_info [2022-11-22 02:30:55,777 INFO L130 BoogieDeclarations]: Found specification of procedure unknown_early_init [2022-11-22 02:30:55,777 INFO L138 BoogieDeclarations]: Found implementation of procedure unknown_early_init [2022-11-22 02:30:55,777 INFO L130 BoogieDeclarations]: Found specification of procedure disassociate [2022-11-22 02:30:55,777 INFO L138 BoogieDeclarations]: Found implementation of procedure disassociate [2022-11-22 02:30:55,777 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2022-11-22 02:30:55,777 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2022-11-22 02:30:55,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 02:30:55,778 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_query_oid [2022-11-22 02:30:55,778 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_query_oid [2022-11-22 02:30:55,778 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2022-11-22 02:30:55,779 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2022-11-22 02:30:55,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 02:30:55,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 02:30:55,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 02:30:55,779 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2022-11-22 02:30:55,779 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2022-11-22 02:30:55,780 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_free [2022-11-22 02:30:55,780 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_free [2022-11-22 02:30:55,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:30:55,781 INFO L130 BoogieDeclarations]: Found specification of procedure is_wpa_key [2022-11-22 02:30:55,781 INFO L138 BoogieDeclarations]: Found implementation of procedure is_wpa_key [2022-11-22 02:30:55,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 02:30:55,782 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 02:30:55,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 02:30:55,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 02:30:55,783 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_priv [2022-11-22 02:30:55,783 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_priv [2022-11-22 02:30:55,783 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_check_bssid_list [2022-11-22 02:30:55,783 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_check_bssid_list [2022-11-22 02:30:55,783 INFO L130 BoogieDeclarations]: Found specification of procedure __toupper [2022-11-22 02:30:55,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __toupper [2022-11-22 02:30:55,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:30:55,784 INFO L130 BoogieDeclarations]: Found specification of procedure bcm4320b_early_init [2022-11-22 02:30:55,784 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm4320b_early_init [2022-11-22 02:30:55,784 INFO L130 BoogieDeclarations]: Found specification of procedure set_channel [2022-11-22 02:30:55,785 INFO L138 BoogieDeclarations]: Found implementation of procedure set_channel [2022-11-22 02:30:55,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 02:30:55,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 02:30:55,786 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_status [2022-11-22 02:30:55,786 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_status [2022-11-22 02:30:55,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-22 02:30:55,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-22 02:30:55,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:30:55,787 INFO L130 BoogieDeclarations]: Found specification of procedure level_to_qual [2022-11-22 02:30:55,787 INFO L138 BoogieDeclarations]: Found implementation of procedure level_to_qual [2022-11-22 02:30:55,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 02:30:55,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 02:30:55,788 INFO L130 BoogieDeclarations]: Found specification of procedure set_essid [2022-11-22 02:30:55,788 INFO L138 BoogieDeclarations]: Found implementation of procedure set_essid [2022-11-22 02:30:55,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:30:55,788 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_put_bss [2022-11-22 02:30:55,788 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_put_bss [2022-11-22 02:30:55,789 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_start_bssid_list_scan [2022-11-22 02:30:55,790 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_start_bssid_list_scan [2022-11-22 02:30:55,794 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 02:30:55,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 02:30:55,794 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_open [2022-11-22 02:30:55,794 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_open [2022-11-22 02:30:55,795 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_copy_module_params [2022-11-22 02:30:55,795 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_copy_module_params [2022-11-22 02:30:55,796 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-22 02:30:55,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-22 02:30:55,796 INFO L130 BoogieDeclarations]: Found specification of procedure set_auth_mode [2022-11-22 02:30:55,802 INFO L138 BoogieDeclarations]: Found implementation of procedure set_auth_mode [2022-11-22 02:30:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-11-22 02:30:55,802 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-11-22 02:30:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-22 02:30:55,803 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-22 02:30:55,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:30:55,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:30:55,803 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-22 02:30:55,803 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-22 02:30:55,803 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-22 02:30:55,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-22 02:30:55,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 02:30:55,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 02:30:55,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 02:30:55,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 02:30:55,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rndis_wlan_driver_exit_11_2 [2022-11-22 02:30:55,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rndis_wlan_driver_exit_11_2 [2022-11-22 02:30:55,804 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-22 02:30:55,804 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-22 02:30:55,805 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_cipher_to_alg [2022-11-22 02:30:55,805 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_cipher_to_alg [2022-11-22 02:30:55,805 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-22 02:30:55,805 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-22 02:30:55,805 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_channel [2022-11-22 02:30:55,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_channel [2022-11-22 02:30:55,805 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-11-22 02:30:55,806 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-11-22 02:30:55,806 INFO L130 BoogieDeclarations]: Found specification of procedure add_wep_key [2022-11-22 02:30:55,806 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wep_key [2022-11-22 02:30:55,806 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_stop [2022-11-22 02:30:55,806 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_stop [2022-11-22 02:30:55,806 INFO L130 BoogieDeclarations]: Found specification of procedure is_broadcast_ether_addr [2022-11-22 02:30:55,806 INFO L138 BoogieDeclarations]: Found implementation of procedure is_broadcast_ether_addr [2022-11-22 02:30:55,806 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-22 02:30:55,807 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-22 02:30:55,807 INFO L130 BoogieDeclarations]: Found specification of procedure set_bssid [2022-11-22 02:30:55,807 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bssid [2022-11-22 02:30:55,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 02:30:55,807 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 02:30:55,807 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-22 02:30:55,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-22 02:30:55,808 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-22 02:30:55,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-22 02:30:55,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:30:55,808 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-22 02:30:55,808 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-22 02:30:55,808 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bssid [2022-11-22 02:30:55,808 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bssid [2022-11-22 02:30:55,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 02:30:55,809 INFO L130 BoogieDeclarations]: Found specification of procedure set_device_pmkids [2022-11-22 02:30:55,809 INFO L138 BoogieDeclarations]: Found implementation of procedure set_device_pmkids [2022-11-22 02:30:55,809 INFO L130 BoogieDeclarations]: Found specification of procedure get_device_pmkids [2022-11-22 02:30:55,809 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device_pmkids [2022-11-22 02:30:55,809 INFO L130 BoogieDeclarations]: Found specification of procedure netif_addr_unlock_bh [2022-11-22 02:30:55,809 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_addr_unlock_bh [2022-11-22 02:30:55,809 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-11-22 02:30:55,809 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-11-22 02:30:55,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 02:30:55,810 INFO L130 BoogieDeclarations]: Found specification of procedure next_bssid_list_item [2022-11-22 02:30:55,810 INFO L138 BoogieDeclarations]: Found implementation of procedure next_bssid_list_item [2022-11-22 02:30:55,810 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-22 02:30:55,810 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-22 02:30:55,810 INFO L130 BoogieDeclarations]: Found specification of procedure set_priv_filter [2022-11-22 02:30:55,810 INFO L138 BoogieDeclarations]: Found implementation of procedure set_priv_filter [2022-11-22 02:30:55,811 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-22 02:30:55,811 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-22 02:30:55,811 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 02:30:55,811 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 02:30:55,811 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_wiphy_params [2022-11-22 02:30:55,811 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_wiphy_params [2022-11-22 02:30:55,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 02:30:55,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 02:30:55,812 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-22 02:30:55,812 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-22 02:30:55,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_7_4 [2022-11-22 02:30:55,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_7_4 [2022-11-22 02:30:55,812 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-11-22 02:30:55,812 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-11-22 02:30:55,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-22 02:30:55,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-22 02:30:55,813 INFO L130 BoogieDeclarations]: Found specification of procedure oid_to_string [2022-11-22 02:30:55,813 INFO L138 BoogieDeclarations]: Found implementation of procedure oid_to_string [2022-11-22 02:30:55,813 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2022-11-22 02:30:55,813 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2022-11-22 02:30:55,813 INFO L130 BoogieDeclarations]: Found specification of procedure deauthenticate [2022-11-22 02:30:55,813 INFO L138 BoogieDeclarations]: Found implementation of procedure deauthenticate [2022-11-22 02:30:55,814 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 02:30:55,814 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 02:30:55,814 INFO L130 BoogieDeclarations]: Found specification of procedure bcm4320a_early_init [2022-11-22 02:30:55,814 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm4320a_early_init [2022-11-22 02:30:55,814 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_michael_mic_failure [2022-11-22 02:30:55,814 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_michael_mic_failure [2022-11-22 02:30:55,814 INFO L130 BoogieDeclarations]: Found specification of procedure set_default_iw_params [2022-11-22 02:30:55,815 INFO L138 BoogieDeclarations]: Found implementation of procedure set_default_iw_params [2022-11-22 02:30:55,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:30:55,815 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_error_status [2022-11-22 02:30:55,815 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_error_status [2022-11-22 02:30:55,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 02:30:55,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 02:30:55,815 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume_rx [2022-11-22 02:30:55,815 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume_rx [2022-11-22 02:30:55,816 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-11-22 02:30:55,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-11-22 02:30:55,816 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-22 02:30:55,816 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-22 02:30:55,816 INFO L130 BoogieDeclarations]: Found specification of procedure get_bcm4320_power_dbm [2022-11-22 02:30:55,816 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bcm4320_power_dbm [2022-11-22 02:30:55,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 02:30:55,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 02:30:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-22 02:30:55,817 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-22 02:30:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_rx_fixup [2022-11-22 02:30:55,817 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_rx_fixup [2022-11-22 02:30:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_oid [2022-11-22 02:30:55,817 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_oid [2022-11-22 02:30:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_indication [2022-11-22 02:30:55,818 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_indication [2022-11-22 02:30:55,819 INFO L130 BoogieDeclarations]: Found specification of procedure get_bssid [2022-11-22 02:30:55,822 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bssid [2022-11-22 02:30:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure is_associated [2022-11-22 02:30:55,823 INFO L138 BoogieDeclarations]: Found implementation of procedure is_associated [2022-11-22 02:30:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-22 02:30:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:30:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-11-22 02:30:55,823 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-11-22 02:30:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure debug_print_pmkids [2022-11-22 02:30:55,823 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_print_pmkids [2022-11-22 02:30:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 02:30:55,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 02:30:57,030 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:30:57,037 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:30:57,617 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 02:31:17,748 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 02:31:18,111 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:31:20,169 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:31:20,169 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 02:31:20,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:31:20 BoogieIcfgContainer [2022-11-22 02:31:20,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:31:20,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:31:20,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:31:20,180 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:31:20,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:30:50" (1/3) ... [2022-11-22 02:31:20,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b62a56c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:31:20, skipping insertion in model container [2022-11-22 02:31:20,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:54" (2/3) ... [2022-11-22 02:31:20,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b62a56c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:31:20, skipping insertion in model container [2022-11-22 02:31:20,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:31:20" (3/3) ... [2022-11-22 02:31:20,183 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rndis_wlan.cil.i [2022-11-22 02:31:20,202 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:31:20,203 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-22 02:31:20,321 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:31:20,332 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;@4695718c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:31:20,332 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-22 02:31:20,345 INFO L276 IsEmpty]: Start isEmpty. Operand has 2014 states, 1226 states have (on average 1.3140293637846656) internal successors, (1611), 1229 states have internal predecessors, (1611), 674 states have call successors, (674), 113 states have call predecessors, (674), 112 states have return successors, (666), 666 states have call predecessors, (666), 666 states have call successors, (666) [2022-11-22 02:31:20,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2022-11-22 02:31:20,392 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:31:20,393 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 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] [2022-11-22 02:31:20,394 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:31:20,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:31:20,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1147486770, now seen corresponding path program 1 times [2022-11-22 02:31:20,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:31:20,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800779115] [2022-11-22 02:31:20,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:31:20,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:31:21,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:31:21,928 INFO L134 CoverageAnalysis]: Checked inductivity of 5115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5115 trivial. 0 not checked. [2022-11-22 02:31:21,928 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:31:21,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800779115] [2022-11-22 02:31:21,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800779115] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:31:21,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:31:21,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:31:21,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231733878] [2022-11-22 02:31:21,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:31:21,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:31:21,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:31:21,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:31:21,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:31:21,989 INFO L87 Difference]: Start difference. First operand has 2014 states, 1226 states have (on average 1.3140293637846656) internal successors, (1611), 1229 states have internal predecessors, (1611), 674 states have call successors, (674), 113 states have call predecessors, (674), 112 states have return successors, (666), 666 states have call predecessors, (666), 666 states have call successors, (666) Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-22 02:31:25,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:31:27,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:31:27,815 INFO L93 Difference]: Finished difference Result 5818 states and 8556 transitions. [2022-11-22 02:31:27,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:31:27,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 384 [2022-11-22 02:31:27,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:31:27,863 INFO L225 Difference]: With dead ends: 5818 [2022-11-22 02:31:27,863 INFO L226 Difference]: Without dead ends: 3865 [2022-11-22 02:31:27,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:31:27,881 INFO L413 NwaCegarLoop]: 3167 mSDtfsCounter, 2755 mSDsluCounter, 2461 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2755 SdHoareTripleChecker+Valid, 5628 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:31:27,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2755 Valid, 5628 Invalid, 925 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 911 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-22 02:31:27,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3865 states. [2022-11-22 02:31:28,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3865 to 3863. [2022-11-22 02:31:28,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3863 states, 2370 states have (on average 1.310548523206751) internal successors, (3106), 2375 states have internal predecessors, (3106), 1270 states have call successors, (1270), 222 states have call predecessors, (1270), 221 states have return successors, (1267), 1267 states have call predecessors, (1267), 1267 states have call successors, (1267) [2022-11-22 02:31:28,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3863 states to 3863 states and 5643 transitions. [2022-11-22 02:31:28,191 INFO L78 Accepts]: Start accepts. Automaton has 3863 states and 5643 transitions. Word has length 384 [2022-11-22 02:31:28,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:31:28,196 INFO L495 AbstractCegarLoop]: Abstraction has 3863 states and 5643 transitions. [2022-11-22 02:31:28,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-22 02:31:28,197 INFO L276 IsEmpty]: Start isEmpty. Operand 3863 states and 5643 transitions. [2022-11-22 02:31:28,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-22 02:31:28,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:31:28,220 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:31:28,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:31:28,221 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:31:28,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:31:28,222 INFO L85 PathProgramCache]: Analyzing trace with hash -218096415, now seen corresponding path program 1 times [2022-11-22 02:31:28,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:31:28,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333232238] [2022-11-22 02:31:28,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:31:28,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:31:28,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:31:29,241 INFO L134 CoverageAnalysis]: Checked inductivity of 5184 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5184 trivial. 0 not checked. [2022-11-22 02:31:29,242 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:31:29,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333232238] [2022-11-22 02:31:29,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333232238] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:31:29,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:31:29,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:31:29,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958205735] [2022-11-22 02:31:29,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:31:29,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:31:29,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:31:29,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:31:29,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:31:29,246 INFO L87 Difference]: Start difference. First operand 3863 states and 5643 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2022-11-22 02:31:33,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:31:35,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:31:35,291 INFO L93 Difference]: Finished difference Result 11261 states and 16442 transitions. [2022-11-22 02:31:35,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:31:35,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 438 [2022-11-22 02:31:35,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:31:35,350 INFO L225 Difference]: With dead ends: 11261 [2022-11-22 02:31:35,351 INFO L226 Difference]: Without dead ends: 7471 [2022-11-22 02:31:35,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:31:35,374 INFO L413 NwaCegarLoop]: 3139 mSDtfsCounter, 2642 mSDsluCounter, 2461 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2642 SdHoareTripleChecker+Valid, 5600 SdHoareTripleChecker+Invalid, 923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:31:35,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2642 Valid, 5600 Invalid, 923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 906 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-11-22 02:31:35,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7471 states. [2022-11-22 02:31:35,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7471 to 7460. [2022-11-22 02:31:35,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7460 states, 4587 states have (on average 1.3091345105733594) internal successors, (6005), 4601 states have internal predecessors, (6005), 2437 states have call successors, (2437), 435 states have call predecessors, (2437), 434 states have return successors, (2434), 2427 states have call predecessors, (2434), 2434 states have call successors, (2434) [2022-11-22 02:31:35,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7460 states to 7460 states and 10876 transitions. [2022-11-22 02:31:35,827 INFO L78 Accepts]: Start accepts. Automaton has 7460 states and 10876 transitions. Word has length 438 [2022-11-22 02:31:35,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:31:35,829 INFO L495 AbstractCegarLoop]: Abstraction has 7460 states and 10876 transitions. [2022-11-22 02:31:35,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2022-11-22 02:31:35,833 INFO L276 IsEmpty]: Start isEmpty. Operand 7460 states and 10876 transitions. [2022-11-22 02:31:35,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2022-11-22 02:31:35,854 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:31:35,854 INFO L195 NwaCegarLoop]: trace histogram [40, 36, 36, 36, 36, 36, 36, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:31:35,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:31:35,855 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:31:35,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:31:35,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1526132255, now seen corresponding path program 1 times [2022-11-22 02:31:35,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:31:35,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091779978] [2022-11-22 02:31:35,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:31:35,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:31:36,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:31:37,382 INFO L134 CoverageAnalysis]: Checked inductivity of 5375 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5375 trivial. 0 not checked. [2022-11-22 02:31:37,384 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:31:37,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091779978] [2022-11-22 02:31:37,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091779978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:31:37,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:31:37,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:31:37,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823542781] [2022-11-22 02:31:37,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:31:37,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:31:37,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:31:37,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:31:37,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:31:37,388 INFO L87 Difference]: Start difference. First operand 7460 states and 10876 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-11-22 02:31:41,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:31:44,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:31:44,332 INFO L93 Difference]: Finished difference Result 11221 states and 16358 transitions. [2022-11-22 02:31:44,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:31:44,333 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 432 [2022-11-22 02:31:44,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:31:44,421 INFO L225 Difference]: With dead ends: 11221 [2022-11-22 02:31:44,421 INFO L226 Difference]: Without dead ends: 11196 [2022-11-22 02:31:44,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:31:44,436 INFO L413 NwaCegarLoop]: 3206 mSDtfsCounter, 2811 mSDsluCounter, 5581 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2811 SdHoareTripleChecker+Valid, 8787 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:31:44,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2811 Valid, 8787 Invalid, 1341 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1340 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-11-22 02:31:44,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11196 states. [2022-11-22 02:31:45,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11196 to 11194. [2022-11-22 02:31:45,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11194 states, 6887 states have (on average 1.3100043560331058) internal successors, (9022), 6905 states have internal predecessors, (9022), 3649 states have call successors, (3649), 657 states have call predecessors, (3649), 656 states have return successors, (3646), 3637 states have call predecessors, (3646), 3646 states have call successors, (3646) [2022-11-22 02:31:45,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11194 states to 11194 states and 16317 transitions. [2022-11-22 02:31:45,388 INFO L78 Accepts]: Start accepts. Automaton has 11194 states and 16317 transitions. Word has length 432 [2022-11-22 02:31:45,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:31:45,390 INFO L495 AbstractCegarLoop]: Abstraction has 11194 states and 16317 transitions. [2022-11-22 02:31:45,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-11-22 02:31:45,391 INFO L276 IsEmpty]: Start isEmpty. Operand 11194 states and 16317 transitions. [2022-11-22 02:31:45,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2022-11-22 02:31:45,426 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:31:45,427 INFO L195 NwaCegarLoop]: trace histogram [38, 36, 36, 36, 36, 36, 36, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-22 02:31:45,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:31:45,427 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:31:45,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:31:45,428 INFO L85 PathProgramCache]: Analyzing trace with hash -864113302, now seen corresponding path program 1 times [2022-11-22 02:31:45,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:31:45,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977733899] [2022-11-22 02:31:45,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:31:45,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:31:45,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:31:46,186 INFO L134 CoverageAnalysis]: Checked inductivity of 5287 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5276 trivial. 0 not checked. [2022-11-22 02:31:46,187 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:31:46,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977733899] [2022-11-22 02:31:46,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977733899] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:31:46,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:31:46,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:31:46,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647426878] [2022-11-22 02:31:46,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:31:46,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:31:46,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:31:46,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:31:46,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:31:46,193 INFO L87 Difference]: Start difference. First operand 11194 states and 16317 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-22 02:31:49,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:31:51,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:31:51,802 INFO L93 Difference]: Finished difference Result 24105 states and 35112 transitions. [2022-11-22 02:31:51,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:31:51,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 460 [2022-11-22 02:31:51,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:31:51,900 INFO L225 Difference]: With dead ends: 24105 [2022-11-22 02:31:51,901 INFO L226 Difference]: Without dead ends: 12984 [2022-11-22 02:31:51,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:31:51,963 INFO L413 NwaCegarLoop]: 3186 mSDtfsCounter, 2643 mSDsluCounter, 2479 mSDsCounter, 0 mSdLazyCounter, 890 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2643 SdHoareTripleChecker+Valid, 5665 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 890 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:31:51,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2643 Valid, 5665 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 890 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-11-22 02:31:51,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12984 states. [2022-11-22 02:31:52,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12984 to 12976. [2022-11-22 02:31:52,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12976 states, 7981 states have (on average 1.30835734870317) internal successors, (10442), 8003 states have internal predecessors, (10442), 4226 states have call successors, (4226), 769 states have call predecessors, (4226), 767 states have return successors, (4223), 4210 states have call predecessors, (4223), 4223 states have call successors, (4223) [2022-11-22 02:31:52,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12976 states to 12976 states and 18891 transitions. [2022-11-22 02:31:52,735 INFO L78 Accepts]: Start accepts. Automaton has 12976 states and 18891 transitions. Word has length 460 [2022-11-22 02:31:52,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:31:52,738 INFO L495 AbstractCegarLoop]: Abstraction has 12976 states and 18891 transitions. [2022-11-22 02:31:52,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-22 02:31:52,738 INFO L276 IsEmpty]: Start isEmpty. Operand 12976 states and 18891 transitions. [2022-11-22 02:31:52,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2022-11-22 02:31:52,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:31:52,789 INFO L195 NwaCegarLoop]: trace histogram [39, 36, 36, 36, 36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:31:52,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:31:52,790 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:31:52,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:31:52,790 INFO L85 PathProgramCache]: Analyzing trace with hash 955107186, now seen corresponding path program 1 times [2022-11-22 02:31:52,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:31:52,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659199332] [2022-11-22 02:31:52,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:31:52,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:31:53,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:31:53,503 INFO L134 CoverageAnalysis]: Checked inductivity of 5277 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5274 trivial. 0 not checked. [2022-11-22 02:31:53,503 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:31:53,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659199332] [2022-11-22 02:31:53,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659199332] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:31:53,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:31:53,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:31:53,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798914478] [2022-11-22 02:31:53,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:31:53,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:31:53,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:31:53,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:31:53,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:31:53,508 INFO L87 Difference]: Start difference. First operand 12976 states and 18891 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2022-11-22 02:31:58,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:31:59,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:31:59,339 INFO L93 Difference]: Finished difference Result 31305 states and 45366 transitions. [2022-11-22 02:31:59,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:31:59,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) Word has length 479 [2022-11-22 02:31:59,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:31:59,459 INFO L225 Difference]: With dead ends: 31305 [2022-11-22 02:31:59,459 INFO L226 Difference]: Without dead ends: 18402 [2022-11-22 02:31:59,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:31:59,534 INFO L413 NwaCegarLoop]: 2958 mSDtfsCounter, 1569 mSDsluCounter, 2427 mSDsCounter, 0 mSdLazyCounter, 951 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1569 SdHoareTripleChecker+Valid, 5385 SdHoareTripleChecker+Invalid, 964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 951 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:31:59,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1569 Valid, 5385 Invalid, 964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 951 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-11-22 02:31:59,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18402 states. [2022-11-22 02:32:00,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18402 to 18381. [2022-11-22 02:32:00,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18381 states, 11365 states have (on average 1.3114826220853497) internal successors, (14905), 11413 states have internal predecessors, (14905), 5800 states have call successors, (5800), 1217 states have call predecessors, (5800), 1214 states have return successors, (5797), 5756 states have call predecessors, (5797), 5797 states have call successors, (5797) [2022-11-22 02:32:00,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18381 states to 18381 states and 26502 transitions. [2022-11-22 02:32:00,752 INFO L78 Accepts]: Start accepts. Automaton has 18381 states and 26502 transitions. Word has length 479 [2022-11-22 02:32:00,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:32:00,756 INFO L495 AbstractCegarLoop]: Abstraction has 18381 states and 26502 transitions. [2022-11-22 02:32:00,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2022-11-22 02:32:00,757 INFO L276 IsEmpty]: Start isEmpty. Operand 18381 states and 26502 transitions. [2022-11-22 02:32:00,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2022-11-22 02:32:00,809 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:32:00,810 INFO L195 NwaCegarLoop]: trace histogram [41, 36, 36, 36, 36, 36, 36, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:32:00,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:32:00,810 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:32:00,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:32:00,811 INFO L85 PathProgramCache]: Analyzing trace with hash 630694675, now seen corresponding path program 1 times [2022-11-22 02:32:00,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:32:00,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100322996] [2022-11-22 02:32:00,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:32:00,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:32:01,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:32:02,218 INFO L134 CoverageAnalysis]: Checked inductivity of 5629 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5629 trivial. 0 not checked. [2022-11-22 02:32:02,218 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:32:02,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100322996] [2022-11-22 02:32:02,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100322996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:32:02,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:32:02,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:32:02,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899873487] [2022-11-22 02:32:02,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:32:02,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:32:02,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:32:02,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:32:02,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:32:02,221 INFO L87 Difference]: Start difference. First operand 18381 states and 26502 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-22 02:32:06,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:32:12,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:32:12,318 INFO L93 Difference]: Finished difference Result 26014 states and 38784 transitions. [2022-11-22 02:32:12,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:32:12,319 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 513 [2022-11-22 02:32:12,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:32:12,519 INFO L225 Difference]: With dead ends: 26014 [2022-11-22 02:32:12,519 INFO L226 Difference]: Without dead ends: 26012 [2022-11-22 02:32:12,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:32:12,547 INFO L413 NwaCegarLoop]: 4468 mSDtfsCounter, 4787 mSDsluCounter, 7216 mSDsCounter, 0 mSdLazyCounter, 2148 mSolverCounterSat, 367 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5158 SdHoareTripleChecker+Valid, 11684 SdHoareTripleChecker+Invalid, 2516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 2148 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:32:12,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5158 Valid, 11684 Invalid, 2516 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [367 Valid, 2148 Invalid, 1 Unknown, 0 Unchecked, 8.8s Time] [2022-11-22 02:32:12,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26012 states. [2022-11-22 02:32:14,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26012 to 18381. [2022-11-22 02:32:14,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18381 states, 11365 states have (on average 1.3113066432028158) internal successors, (14903), 11413 states have internal predecessors, (14903), 5800 states have call successors, (5800), 1217 states have call predecessors, (5800), 1214 states have return successors, (5797), 5756 states have call predecessors, (5797), 5797 states have call successors, (5797) [2022-11-22 02:32:14,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18381 states to 18381 states and 26500 transitions. [2022-11-22 02:32:14,188 INFO L78 Accepts]: Start accepts. Automaton has 18381 states and 26500 transitions. Word has length 513 [2022-11-22 02:32:14,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:32:14,190 INFO L495 AbstractCegarLoop]: Abstraction has 18381 states and 26500 transitions. [2022-11-22 02:32:14,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-22 02:32:14,190 INFO L276 IsEmpty]: Start isEmpty. Operand 18381 states and 26500 transitions. [2022-11-22 02:32:14,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2022-11-22 02:32:14,260 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:32:14,260 INFO L195 NwaCegarLoop]: trace histogram [43, 36, 36, 36, 36, 36, 36, 6, 6, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:32:14,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 02:32:14,261 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:32:14,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:32:14,262 INFO L85 PathProgramCache]: Analyzing trace with hash 628996581, now seen corresponding path program 1 times [2022-11-22 02:32:14,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:32:14,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853225806] [2022-11-22 02:32:14,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:32:14,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:32:14,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:32:14,916 INFO L134 CoverageAnalysis]: Checked inductivity of 5672 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 5652 trivial. 0 not checked. [2022-11-22 02:32:14,917 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:32:14,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853225806] [2022-11-22 02:32:14,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853225806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:32:14,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:32:14,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:32:14,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179243794] [2022-11-22 02:32:14,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:32:14,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:32:14,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:32:14,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:32:14,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:32:14,921 INFO L87 Difference]: Start difference. First operand 18381 states and 26500 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 3 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2022-11-22 02:32:20,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:32:21,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:32:21,498 INFO L93 Difference]: Finished difference Result 41970 states and 60447 transitions. [2022-11-22 02:32:21,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:32:21,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 3 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) Word has length 547 [2022-11-22 02:32:21,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:32:21,669 INFO L225 Difference]: With dead ends: 41970 [2022-11-22 02:32:21,669 INFO L226 Difference]: Without dead ends: 24611 [2022-11-22 02:32:21,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:32:21,760 INFO L413 NwaCegarLoop]: 3798 mSDtfsCounter, 1599 mSDsluCounter, 2395 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1599 SdHoareTripleChecker+Valid, 6193 SdHoareTripleChecker+Invalid, 1202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:32:21,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1599 Valid, 6193 Invalid, 1202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1193 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-11-22 02:32:21,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24611 states. [2022-11-22 02:32:23,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24611 to 24590. [2022-11-22 02:32:23,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24590 states, 15230 states have (on average 1.3129349967170059) internal successors, (19996), 15305 states have internal predecessors, (19996), 7666 states have call successors, (7666), 1696 states have call predecessors, (7666), 1692 states have return successors, (7663), 7594 states have call predecessors, (7663), 7663 states have call successors, (7663) [2022-11-22 02:32:23,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24590 states to 24590 states and 35325 transitions. [2022-11-22 02:32:23,411 INFO L78 Accepts]: Start accepts. Automaton has 24590 states and 35325 transitions. Word has length 547 [2022-11-22 02:32:23,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:32:23,412 INFO L495 AbstractCegarLoop]: Abstraction has 24590 states and 35325 transitions. [2022-11-22 02:32:23,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 3 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2022-11-22 02:32:23,413 INFO L276 IsEmpty]: Start isEmpty. Operand 24590 states and 35325 transitions. [2022-11-22 02:32:23,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 737 [2022-11-22 02:32:23,492 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:32:23,493 INFO L195 NwaCegarLoop]: trace histogram [45, 36, 36, 36, 36, 36, 36, 26, 26, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:32:23,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 02:32:23,493 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:32:23,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:32:23,494 INFO L85 PathProgramCache]: Analyzing trace with hash 629410155, now seen corresponding path program 1 times [2022-11-22 02:32:23,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:32:23,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426462306] [2022-11-22 02:32:23,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:32:23,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:32:23,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:32:25,043 INFO L134 CoverageAnalysis]: Checked inductivity of 7242 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 7221 trivial. 0 not checked. [2022-11-22 02:32:25,044 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:32:25,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426462306] [2022-11-22 02:32:25,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426462306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:32:25,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:32:25,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:32:25,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284919337] [2022-11-22 02:32:25,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:32:25,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:32:25,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:32:25,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:32:25,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:32:25,054 INFO L87 Difference]: Start difference. First operand 24590 states and 35325 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 3 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) [2022-11-22 02:32:31,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:32:33,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:32:33,003 INFO L93 Difference]: Finished difference Result 70780 states and 101723 transitions. [2022-11-22 02:32:33,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:32:33,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 3 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) Word has length 736 [2022-11-22 02:32:33,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:32:33,299 INFO L225 Difference]: With dead ends: 70780 [2022-11-22 02:32:33,300 INFO L226 Difference]: Without dead ends: 47212 [2022-11-22 02:32:33,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:32:33,421 INFO L413 NwaCegarLoop]: 4778 mSDtfsCounter, 2653 mSDsluCounter, 2458 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2653 SdHoareTripleChecker+Valid, 7236 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:32:33,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2653 Valid, 7236 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1313 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-11-22 02:32:33,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47212 states. [2022-11-22 02:32:36,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47212 to 47210. [2022-11-22 02:32:36,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47210 states, 29318 states have (on average 1.311242240261955) internal successors, (38443), 29411 states have internal predecessors, (38443), 14638 states have call successors, (14638), 3256 states have call predecessors, (14638), 3252 states have return successors, (14635), 14554 states have call predecessors, (14635), 14635 states have call successors, (14635) [2022-11-22 02:32:36,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47210 states to 47210 states and 67716 transitions. [2022-11-22 02:32:36,872 INFO L78 Accepts]: Start accepts. Automaton has 47210 states and 67716 transitions. Word has length 736 [2022-11-22 02:32:36,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:32:36,875 INFO L495 AbstractCegarLoop]: Abstraction has 47210 states and 67716 transitions. [2022-11-22 02:32:36,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 3 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) [2022-11-22 02:32:36,876 INFO L276 IsEmpty]: Start isEmpty. Operand 47210 states and 67716 transitions. [2022-11-22 02:32:37,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 756 [2022-11-22 02:32:37,281 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:32:37,282 INFO L195 NwaCegarLoop]: trace histogram [46, 36, 36, 36, 36, 36, 36, 27, 27, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:32:37,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 02:32:37,283 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:32:37,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:32:37,284 INFO L85 PathProgramCache]: Analyzing trace with hash -357129829, now seen corresponding path program 1 times [2022-11-22 02:32:37,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:32:37,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802438658] [2022-11-22 02:32:37,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:32:37,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:32:37,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:32:39,004 INFO L134 CoverageAnalysis]: Checked inductivity of 7444 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 7403 trivial. 0 not checked. [2022-11-22 02:32:39,005 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:32:39,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802438658] [2022-11-22 02:32:39,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802438658] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:32:39,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:32:39,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:32:39,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723773947] [2022-11-22 02:32:39,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:32:39,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:32:39,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:32:39,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:32:39,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:32:39,010 INFO L87 Difference]: Start difference. First operand 47210 states and 67716 transitions. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 3 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (79), 3 states have call predecessors, (79), 3 states have call successors, (79) [2022-11-22 02:32:47,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:32:50,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:32:50,918 INFO L93 Difference]: Finished difference Result 109294 states and 156156 transitions. [2022-11-22 02:32:50,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:32:50,918 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 3 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (79), 3 states have call predecessors, (79), 3 states have call successors, (79) Word has length 755 [2022-11-22 02:32:50,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:32:51,540 INFO L225 Difference]: With dead ends: 109294 [2022-11-22 02:32:51,540 INFO L226 Difference]: Without dead ends: 63106 [2022-11-22 02:32:51,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:32:51,797 INFO L413 NwaCegarLoop]: 3995 mSDtfsCounter, 2151 mSDsluCounter, 5187 mSDsCounter, 0 mSdLazyCounter, 2634 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2151 SdHoareTripleChecker+Valid, 9182 SdHoareTripleChecker+Invalid, 2644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2634 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:32:51,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2151 Valid, 9182 Invalid, 2644 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2634 Invalid, 1 Unknown, 0 Unchecked, 9.0s Time] [2022-11-22 02:32:51,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63106 states. [2022-11-22 02:32:54,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63106 to 63085. [2022-11-22 02:32:55,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63085 states, 39211 states have (on average 1.309964040702864) internal successors, (51365), 39335 states have internal predecessors, (51365), 19216 states have call successors, (19216), 4661 states have call predecessors, (19216), 4656 states have return successors, (19213), 19100 states have call predecessors, (19213), 19213 states have call successors, (19213) [2022-11-22 02:32:55,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63085 states to 63085 states and 89794 transitions. [2022-11-22 02:32:55,416 INFO L78 Accepts]: Start accepts. Automaton has 63085 states and 89794 transitions. Word has length 755 [2022-11-22 02:32:55,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:32:55,418 INFO L495 AbstractCegarLoop]: Abstraction has 63085 states and 89794 transitions. [2022-11-22 02:32:55,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 3 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (79), 3 states have call predecessors, (79), 3 states have call successors, (79) [2022-11-22 02:32:55,419 INFO L276 IsEmpty]: Start isEmpty. Operand 63085 states and 89794 transitions. [2022-11-22 02:32:56,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 810 [2022-11-22 02:32:56,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:32:56,136 INFO L195 NwaCegarLoop]: trace histogram [48, 36, 36, 36, 36, 36, 36, 28, 28, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:32:56,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 02:32:56,136 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:32:56,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:32:56,137 INFO L85 PathProgramCache]: Analyzing trace with hash -568163361, now seen corresponding path program 1 times [2022-11-22 02:32:56,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:32:56,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70285616] [2022-11-22 02:32:56,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:32:56,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:32:56,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:32:57,864 INFO L134 CoverageAnalysis]: Checked inductivity of 7764 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 7703 trivial. 0 not checked. [2022-11-22 02:32:57,865 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:32:57,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70285616] [2022-11-22 02:32:57,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70285616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:32:57,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:32:57,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:32:57,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003232466] [2022-11-22 02:32:57,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:32:57,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:32:57,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:32:57,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:32:57,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:32:57,869 INFO L87 Difference]: Start difference. First operand 63085 states and 89794 transitions. Second operand has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 3 states have call successors, (85), 2 states have call predecessors, (85), 1 states have return successors, (84), 3 states have call predecessors, (84), 3 states have call successors, (84) [2022-11-22 02:33:05,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:33:09,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:33:09,257 INFO L93 Difference]: Finished difference Result 137324 states and 195416 transitions. [2022-11-22 02:33:09,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:33:09,257 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 3 states have call successors, (85), 2 states have call predecessors, (85), 1 states have return successors, (84), 3 states have call predecessors, (84), 3 states have call successors, (84) Word has length 809 [2022-11-22 02:33:09,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:33:09,846 INFO L225 Difference]: With dead ends: 137324 [2022-11-22 02:33:09,846 INFO L226 Difference]: Without dead ends: 75261 [2022-11-22 02:33:10,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:33:10,203 INFO L413 NwaCegarLoop]: 3799 mSDtfsCounter, 1582 mSDsluCounter, 3060 mSDsCounter, 0 mSdLazyCounter, 2136 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1582 SdHoareTripleChecker+Valid, 6859 SdHoareTripleChecker+Invalid, 2148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2136 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:33:10,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1582 Valid, 6859 Invalid, 2148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2136 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2022-11-22 02:33:10,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75261 states. [2022-11-22 02:33:14,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75261 to 75240. [2022-11-22 02:33:14,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75240 states, 46800 states have (on average 1.3108333333333333) internal successors, (61347), 46955 states have internal predecessors, (61347), 22822 states have call successors, (22822), 5622 states have call predecessors, (22822), 5616 states have return successors, (22819), 22674 states have call predecessors, (22819), 22819 states have call successors, (22819) [2022-11-22 02:33:14,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75240 states to 75240 states and 106988 transitions. [2022-11-22 02:33:14,589 INFO L78 Accepts]: Start accepts. Automaton has 75240 states and 106988 transitions. Word has length 809 [2022-11-22 02:33:14,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:33:14,591 INFO L495 AbstractCegarLoop]: Abstraction has 75240 states and 106988 transitions. [2022-11-22 02:33:14,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 3 states have call successors, (85), 2 states have call predecessors, (85), 1 states have return successors, (84), 3 states have call predecessors, (84), 3 states have call successors, (84) [2022-11-22 02:33:14,591 INFO L276 IsEmpty]: Start isEmpty. Operand 75240 states and 106988 transitions. [2022-11-22 02:33:14,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 832 [2022-11-22 02:33:14,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:33:14,821 INFO L195 NwaCegarLoop]: trace histogram [50, 36, 36, 36, 36, 36, 36, 29, 29, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:33:14,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 02:33:14,822 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:33:14,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:33:14,823 INFO L85 PathProgramCache]: Analyzing trace with hash -37433509, now seen corresponding path program 1 times [2022-11-22 02:33:14,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:33:14,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381721601] [2022-11-22 02:33:14,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:33:14,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:33:15,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:33:16,698 INFO L134 CoverageAnalysis]: Checked inductivity of 8090 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 8013 trivial. 0 not checked. [2022-11-22 02:33:16,699 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:33:16,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381721601] [2022-11-22 02:33:16,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381721601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:33:16,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:33:16,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:33:16,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149862247] [2022-11-22 02:33:16,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:33:16,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:33:16,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:33:16,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:33:16,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:33:16,703 INFO L87 Difference]: Start difference. First operand 75240 states and 106988 transitions. Second operand has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 3 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (86), 3 states have call predecessors, (86), 3 states have call successors, (86) [2022-11-22 02:33:25,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:33:30,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:33:30,168 INFO L93 Difference]: Finished difference Result 161802 states and 230044 transitions. [2022-11-22 02:33:30,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:33:30,169 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 3 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (86), 3 states have call predecessors, (86), 3 states have call successors, (86) Word has length 831 [2022-11-22 02:33:30,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:33:30,648 INFO L225 Difference]: With dead ends: 161802 [2022-11-22 02:33:30,648 INFO L226 Difference]: Without dead ends: 87584 [2022-11-22 02:33:30,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:33:30,932 INFO L413 NwaCegarLoop]: 3803 mSDtfsCounter, 1633 mSDsluCounter, 5433 mSDsCounter, 0 mSdLazyCounter, 2603 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1633 SdHoareTripleChecker+Valid, 9236 SdHoareTripleChecker+Invalid, 2616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2603 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:33:30,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1633 Valid, 9236 Invalid, 2616 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 2603 Invalid, 1 Unknown, 0 Unchecked, 8.8s Time] [2022-11-22 02:33:31,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87584 states. [2022-11-22 02:33:35,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87584 to 87563. [2022-11-22 02:33:35,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87563 states, 54497 states have (on average 1.3108427986861662) internal successors, (71437), 54683 states have internal predecessors, (71437), 26464 states have call successors, (26464), 6607 states have call predecessors, (26464), 6600 states have return successors, (26461), 26284 states have call predecessors, (26461), 26461 states have call successors, (26461) [2022-11-22 02:33:35,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87563 states to 87563 states and 124362 transitions. [2022-11-22 02:33:35,867 INFO L78 Accepts]: Start accepts. Automaton has 87563 states and 124362 transitions. Word has length 831 [2022-11-22 02:33:35,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:33:35,868 INFO L495 AbstractCegarLoop]: Abstraction has 87563 states and 124362 transitions. [2022-11-22 02:33:35,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 3 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (86), 3 states have call predecessors, (86), 3 states have call successors, (86) [2022-11-22 02:33:35,869 INFO L276 IsEmpty]: Start isEmpty. Operand 87563 states and 124362 transitions. [2022-11-22 02:33:36,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 873 [2022-11-22 02:33:36,159 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:33:36,160 INFO L195 NwaCegarLoop]: trace histogram [52, 36, 36, 36, 36, 36, 36, 31, 31, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:33:36,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 02:33:36,160 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:33:36,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:33:36,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1207464172, now seen corresponding path program 1 times [2022-11-22 02:33:36,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:33:36,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71083894] [2022-11-22 02:33:36,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:33:36,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:33:36,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:33:37,521 INFO L134 CoverageAnalysis]: Checked inductivity of 8628 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 8533 trivial. 0 not checked. [2022-11-22 02:33:37,522 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:33:37,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71083894] [2022-11-22 02:33:37,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71083894] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:33:37,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:33:37,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:33:37,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145374088] [2022-11-22 02:33:37,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:33:37,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:33:37,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:33:37,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:33:37,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:33:37,525 INFO L87 Difference]: Start difference. First operand 87563 states and 124362 transitions. Second operand has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 3 states have call successors, (89), 2 states have call predecessors, (89), 1 states have return successors, (88), 3 states have call predecessors, (88), 3 states have call successors, (88)