./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-ipw2x00-ipw2100.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_d6bcc2f8-8b83-4945-b269-85ac47770ee0/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bcc2f8-8b83-4945-b269-85ac47770ee0/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bcc2f8-8b83-4945-b269-85ac47770ee0/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bcc2f8-8b83-4945-b269-85ac47770ee0/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-ipw2x00-ipw2100.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bcc2f8-8b83-4945-b269-85ac47770ee0/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bcc2f8-8b83-4945-b269-85ac47770ee0/bin/utaipan-7li7fVZpFI --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 3b1986f893b92b583df635a6037935ebceab765520aec8f1f2d3a2b6ea37b26f --- 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-5e519f3 [2022-11-03 02:14:52,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:14:52,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:14:52,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:14:52,490 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:14:52,491 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:14:52,492 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:14:52,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:14:52,496 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:14:52,497 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:14:52,502 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:14:52,504 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:14:52,505 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:14:52,506 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:14:52,507 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:14:52,508 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:14:52,509 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:14:52,510 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:14:52,512 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:14:52,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:14:52,528 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:14:52,535 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:14:52,536 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:14:52,540 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:14:52,544 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:14:52,551 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:14:52,552 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:14:52,553 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:14:52,553 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:14:52,556 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:14:52,557 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:14:52,558 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:14:52,559 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:14:52,561 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:14:52,562 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:14:52,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:14:52,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:14:52,565 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:14:52,565 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:14:52,566 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:14:52,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:14:52,568 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bcc2f8-8b83-4945-b269-85ac47770ee0/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:14:52,617 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:14:52,617 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:14:52,618 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:14:52,619 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:14:52,619 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:14:52,620 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:14:52,620 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:14:52,620 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:14:52,620 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:14:52,621 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:14:52,622 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:14:52,622 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:14:52,622 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:14:52,623 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:14:52,623 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:14:52,623 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:14:52,623 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:14:52,624 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:14:52,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:14:52,625 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:14:52,625 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:14:52,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:14:52,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:14:52,626 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:14:52,626 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:14:52,626 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:14:52,626 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:14:52,627 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:14:52,627 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:14:52,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:14:52,627 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:14:52,628 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:14:52,628 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:14:52,628 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:14:52,629 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:14:52,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:14:52,629 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:14:52,629 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:14:52,630 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_d6bcc2f8-8b83-4945-b269-85ac47770ee0/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bcc2f8-8b83-4945-b269-85ac47770ee0/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b1986f893b92b583df635a6037935ebceab765520aec8f1f2d3a2b6ea37b26f [2022-11-03 02:14:52,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:14:52,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:14:52,993 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:14:52,995 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:14:52,996 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:14:52,997 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bcc2f8-8b83-4945-b269-85ac47770ee0/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-ipw2x00-ipw2100.cil.i [2022-11-03 02:14:53,077 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bcc2f8-8b83-4945-b269-85ac47770ee0/bin/utaipan-7li7fVZpFI/data/419ad69fc/588855cbc779402ab35fbbb68a54ee0f/FLAG8e4097205 [2022-11-03 02:14:54,460 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:14:54,462 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bcc2f8-8b83-4945-b269-85ac47770ee0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-ipw2x00-ipw2100.cil.i [2022-11-03 02:14:54,582 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bcc2f8-8b83-4945-b269-85ac47770ee0/bin/utaipan-7li7fVZpFI/data/419ad69fc/588855cbc779402ab35fbbb68a54ee0f/FLAG8e4097205 [2022-11-03 02:14:54,901 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bcc2f8-8b83-4945-b269-85ac47770ee0/bin/utaipan-7li7fVZpFI/data/419ad69fc/588855cbc779402ab35fbbb68a54ee0f [2022-11-03 02:14:54,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:14:54,906 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:14:54,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:14:54,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:14:54,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:14:54,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:14:54" (1/1) ... [2022-11-03 02:14:54,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24627dd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:54, skipping insertion in model container [2022-11-03 02:14:54,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:14:54" (1/1) ... [2022-11-03 02:14:54,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:14:55,177 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:15:02,600 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bcc2f8-8b83-4945-b269-85ac47770ee0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-ipw2x00-ipw2100.cil.i[749649,749662] [2022-11-03 02:15:02,603 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bcc2f8-8b83-4945-b269-85ac47770ee0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-ipw2x00-ipw2100.cil.i[749796,749809] [2022-11-03 02:15:02,604 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bcc2f8-8b83-4945-b269-85ac47770ee0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-ipw2x00-ipw2100.cil.i[749935,749948] [2022-11-03 02:15:02,605 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bcc2f8-8b83-4945-b269-85ac47770ee0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-ipw2x00-ipw2100.cil.i[750093,750106] [2022-11-03 02:15:02,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:15:02,726 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:15:03,651 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bcc2f8-8b83-4945-b269-85ac47770ee0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-ipw2x00-ipw2100.cil.i[749649,749662] [2022-11-03 02:15:03,651 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bcc2f8-8b83-4945-b269-85ac47770ee0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-ipw2x00-ipw2100.cil.i[749796,749809] [2022-11-03 02:15:03,652 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bcc2f8-8b83-4945-b269-85ac47770ee0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-ipw2x00-ipw2100.cil.i[749935,749948] [2022-11-03 02:15:03,652 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bcc2f8-8b83-4945-b269-85ac47770ee0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-ipw2x00-ipw2100.cil.i[750093,750106] [2022-11-03 02:15:03,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:15:04,126 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:15:04,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:15:04 WrapperNode [2022-11-03 02:15:04,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:15:04,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:15:04,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:15:04,129 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:15:04,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:15:04" (1/1) ... [2022-11-03 02:15:04,392 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:15:04" (1/1) ... [2022-11-03 02:15:04,739 INFO L138 Inliner]: procedures = 617, calls = 11504, calls flagged for inlining = 310, calls inlined = 246, statements flattened = 12799 [2022-11-03 02:15:04,740 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:15:04,741 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:15:04,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:15:04,741 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:15:04,752 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:15:04" (1/1) ... [2022-11-03 02:15:04,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:15:04" (1/1) ... [2022-11-03 02:15:04,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:15:04" (1/1) ... [2022-11-03 02:15:04,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:15:04" (1/1) ... [2022-11-03 02:15:05,372 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:15:04" (1/1) ... [2022-11-03 02:15:05,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:15:04" (1/1) ... [2022-11-03 02:15:05,481 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:15:04" (1/1) ... [2022-11-03 02:15:05,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:15:04" (1/1) ... [2022-11-03 02:15:05,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:15:05,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:15:05,716 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:15:05,716 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:15:05,717 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:15:04" (1/1) ... [2022-11-03 02:15:05,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:15:05,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bcc2f8-8b83-4945-b269-85ac47770ee0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:15:05,800 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bcc2f8-8b83-4945-b269-85ac47770ee0/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:15:05,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bcc2f8-8b83-4945-b269-85ac47770ee0/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:15:05,937 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-03 02:15:05,937 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-03 02:15:05,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:15:05,937 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:15:05,938 INFO L130 BoogieDeclarations]: Found specification of procedure read_register [2022-11-03 02:15:05,938 INFO L138 BoogieDeclarations]: Found implementation of procedure read_register [2022-11-03 02:15:05,938 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_send_data [2022-11-03 02:15:05,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_send_data [2022-11-03 02:15:05,938 INFO L130 BoogieDeclarations]: Found specification of procedure write_register_byte [2022-11-03 02:15:05,938 INFO L138 BoogieDeclarations]: Found implementation of procedure write_register_byte [2022-11-03 02:15:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:15:05,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:15:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-03 02:15:05,939 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-03 02:15:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-11-03 02:15:05,939 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-11-03 02:15:05,940 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_release_firmware [2022-11-03 02:15:05,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_release_firmware [2022-11-03 02:15:05,940 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_configure_security [2022-11-03 02:15:05,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_configure_security [2022-11-03 02:15:05,940 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 02:15:05,941 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 02:15:05,941 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-03 02:15:05,941 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-03 02:15:05,944 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_reset_adapter [2022-11-03 02:15:05,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_reset_adapter [2022-11-03 02:15:05,945 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_security_information [2022-11-03 02:15:05,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_security_information [2022-11-03 02:15:05,945 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-03 02:15:05,945 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-03 02:15:05,945 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 02:15:05,946 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 02:15:05,946 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-03 02:15:05,962 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-03 02:15:05,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 02:15:05,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 02:15:05,963 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 02:15:05,963 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 02:15:05,963 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 02:15:05,964 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 02:15:05,964 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_mandatory_bssid [2022-11-03 02:15:05,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_mandatory_bssid [2022-11-03 02:15:05,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 02:15:05,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 02:15:05,966 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 02:15:05,966 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 02:15:05,967 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_rfkill_set_hw_state [2022-11-03 02:15:05,968 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_rfkill_set_hw_state [2022-11-03 02:15:05,968 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_unregister [2022-11-03 02:15:05,968 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_unregister [2022-11-03 02:15:05,968 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_disable_adapter [2022-11-03 02:15:05,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_disable_adapter [2022-11-03 02:15:05,969 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-03 02:15:05,970 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-03 02:15:05,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:15:05,970 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_hw_send_command [2022-11-03 02:15:05,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_hw_send_command [2022-11-03 02:15:05,970 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-03 02:15:05,971 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-03 02:15:05,971 INFO L130 BoogieDeclarations]: Found specification of procedure read_nic_word [2022-11-03 02:15:05,971 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nic_word [2022-11-03 02:15:05,971 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 02:15:05,971 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 02:15:05,971 INFO L130 BoogieDeclarations]: Found specification of procedure isr_scan_complete [2022-11-03 02:15:05,972 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_scan_complete [2022-11-03 02:15:05,972 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_power_mode [2022-11-03 02:15:05,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_power_mode [2022-11-03 02:15:05,973 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 02:15:05,973 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 02:15:05,973 INFO L130 BoogieDeclarations]: Found specification of procedure write_nic_byte [2022-11-03 02:15:05,974 INFO L138 BoogieDeclarations]: Found implementation of procedure write_nic_byte [2022-11-03 02:15:05,974 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 02:15:05,974 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 02:15:05,974 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2022-11-03 02:15:05,975 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2022-11-03 02:15:05,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 02:15:05,975 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 02:15:05,976 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 02:15:05,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-03 02:15:05,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-03 02:15:05,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:15:05,976 INFO L130 BoogieDeclarations]: Found specification of procedure write_nic_dword [2022-11-03 02:15:05,977 INFO L138 BoogieDeclarations]: Found implementation of procedure write_nic_dword [2022-11-03 02:15:05,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 02:15:05,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 02:15:05,978 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_channel [2022-11-03 02:15:05,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_channel [2022-11-03 02:15:05,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:15:05,979 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 02:15:05,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 02:15:05,980 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_up [2022-11-03 02:15:05,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_up [2022-11-03 02:15:05,980 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_send_commands [2022-11-03 02:15:05,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_send_commands [2022-11-03 02:15:05,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 02:15:05,981 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 02:15:05,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-03 02:15:05,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-03 02:15:05,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 02:15:05,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 02:15:05,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 02:15:05,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 02:15:05,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ipw2100_exit_18_2 [2022-11-03 02:15:05,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ipw2100_exit_18_2 [2022-11-03 02:15:05,984 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-03 02:15:05,987 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-03 02:15:05,987 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-03 02:15:05,987 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-03 02:15:05,988 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_enable_adapter [2022-11-03 02:15:05,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_enable_adapter [2022-11-03 02:15:05,988 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 02:15:05,989 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 02:15:05,989 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_scan_options [2022-11-03 02:15:05,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_scan_options [2022-11-03 02:15:06,008 INFO L130 BoogieDeclarations]: Found specification of procedure libipw_txb_free [2022-11-03 02:15:06,009 INFO L138 BoogieDeclarations]: Found implementation of procedure libipw_txb_free [2022-11-03 02:15:06,009 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_reset_fatalerror [2022-11-03 02:15:06,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_reset_fatalerror [2022-11-03 02:15:06,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:15:06,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-03 02:15:06,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-03 02:15:06,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 02:15:06,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 02:15:06,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:15:06,010 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_tx_rates [2022-11-03 02:15:06,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_tx_rates [2022-11-03 02:15:06,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 02:15:06,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 02:15:06,011 INFO L130 BoogieDeclarations]: Found specification of procedure print_ssid [2022-11-03 02:15:06,011 INFO L138 BoogieDeclarations]: Found implementation of procedure print_ssid [2022-11-03 02:15:06,011 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 02:15:06,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 02:15:06,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:15:06,012 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-03 02:15:06,012 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-03 02:15:06,012 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 02:15:06,012 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_snapshot_free [2022-11-03 02:15:06,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_snapshot_free [2022-11-03 02:15:06,013 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:15:06,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:15:06,013 INFO L130 BoogieDeclarations]: Found specification of procedure snprint_line [2022-11-03 02:15:06,013 INFO L138 BoogieDeclarations]: Found implementation of procedure snprint_line [2022-11-03 02:15:06,013 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-03 02:15:06,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-03 02:15:06,014 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_reset [2022-11-03 02:15:06,014 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_reset [2022-11-03 02:15:06,014 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-03 02:15:06,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-03 02:15:06,014 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 02:15:06,015 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 02:15:06,015 INFO L130 BoogieDeclarations]: Found specification of procedure sw_reset_and_clock [2022-11-03 02:15:06,015 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_reset_and_clock [2022-11-03 02:15:06,015 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_enable_interrupts [2022-11-03 02:15:06,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_enable_interrupts [2022-11-03 02:15:06,015 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-03 02:15:06,016 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-03 02:15:06,016 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_resume [2022-11-03 02:15:06,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_resume [2022-11-03 02:15:06,016 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-11-03 02:15:06,016 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-11-03 02:15:06,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:15:06,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:15:06,017 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_send_event [2022-11-03 02:15:06,017 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_send_event [2022-11-03 02:15:06,017 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_pci_remove_one [2022-11-03 02:15:06,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_pci_remove_one [2022-11-03 02:15:06,017 INFO L130 BoogieDeclarations]: Found specification of procedure bd_queue_free [2022-11-03 02:15:06,018 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_queue_free [2022-11-03 02:15:06,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-03 02:15:06,019 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-03 02:15:06,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 02:15:06,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:15:06,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:15:06,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:15:06,021 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_alloc_skb [2022-11-03 02:15:06,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_alloc_skb [2022-11-03 02:15:06,021 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-03 02:15:06,022 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-03 02:15:06,023 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_get_ordinal [2022-11-03 02:15:06,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_get_ordinal [2022-11-03 02:15:06,023 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_hw_stop_adapter [2022-11-03 02:15:06,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_hw_stop_adapter [2022-11-03 02:15:06,024 INFO L130 BoogieDeclarations]: Found specification of procedure write_register [2022-11-03 02:15:06,024 INFO L138 BoogieDeclarations]: Found implementation of procedure write_register [2022-11-03 02:15:06,024 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_hw_set_gpio [2022-11-03 02:15:06,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_hw_set_gpio [2022-11-03 02:15:06,024 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-03 02:15:06,025 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-03 02:15:06,025 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_down [2022-11-03 02:15:06,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_down [2022-11-03 02:15:06,025 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_close [2022-11-03 02:15:06,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_close [2022-11-03 02:15:06,025 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_wait_for_card_state [2022-11-03 02:15:06,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_wait_for_card_state [2022-11-03 02:15:06,026 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_rf_kill [2022-11-03 02:15:06,026 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_rf_kill [2022-11-03 02:15:06,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-03 02:15:06,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-03 02:15:06,026 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 02:15:06,027 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 02:15:06,027 INFO L130 BoogieDeclarations]: Found specification of procedure read_register_byte [2022-11-03 02:15:06,027 INFO L138 BoogieDeclarations]: Found implementation of procedure read_register_byte [2022-11-03 02:15:06,027 INFO L130 BoogieDeclarations]: Found specification of procedure status_queue_free [2022-11-03 02:15:06,027 INFO L138 BoogieDeclarations]: Found implementation of procedure status_queue_free [2022-11-03 02:15:06,027 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-03 02:15:06,027 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-03 02:15:06,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 02:15:06,028 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 02:15:06,028 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 02:15:06,028 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 02:15:06,028 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_rx_free [2022-11-03 02:15:06,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_rx_free [2022-11-03 02:15:06,029 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-03 02:15:06,029 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-03 02:15:06,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-11-03 02:15:06,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-11-03 02:15:06,029 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 02:15:06,029 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 02:15:06,029 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-03 02:15:06,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-03 02:15:06,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:15:06,030 INFO L130 BoogieDeclarations]: Found specification of procedure mod_delayed_work [2022-11-03 02:15:06,030 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_delayed_work [2022-11-03 02:15:06,030 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 02:15:06,030 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 02:15:06,031 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_shutdown [2022-11-03 02:15:06,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_shutdown [2022-11-03 02:15:06,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:15:06,031 INFO L130 BoogieDeclarations]: Found specification of procedure write_nic_word [2022-11-03 02:15:06,031 INFO L138 BoogieDeclarations]: Found implementation of procedure write_nic_word [2022-11-03 02:15:06,031 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_association_lost [2022-11-03 02:15:06,033 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_association_lost [2022-11-03 02:15:06,037 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_free [2022-11-03 02:15:06,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_free [2022-11-03 02:15:06,037 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_mac_address [2022-11-03 02:15:06,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_mac_address [2022-11-03 02:15:06,038 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_essid [2022-11-03 02:15:06,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_essid [2022-11-03 02:15:06,038 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-11-03 02:15:06,038 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-11-03 02:15:06,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:15:06,039 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_disable_interrupts [2022-11-03 02:15:06,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_disable_interrupts [2022-11-03 02:15:06,040 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-03 02:15:06,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-03 02:15:06,040 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 02:15:06,040 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 02:15:06,040 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_rts_threshold [2022-11-03 02:15:06,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_rts_threshold [2022-11-03 02:15:06,041 INFO L130 BoogieDeclarations]: Found specification of procedure read_nic_byte [2022-11-03 02:15:06,041 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nic_byte [2022-11-03 02:15:06,041 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-03 02:15:06,041 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-03 02:15:06,041 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 02:15:06,041 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 02:15:06,042 INFO L130 BoogieDeclarations]: Found specification of procedure free_libipw [2022-11-03 02:15:06,042 INFO L138 BoogieDeclarations]: Found implementation of procedure free_libipw [2022-11-03 02:15:06,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 02:15:06,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 02:15:06,042 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-03 02:15:06,042 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-03 02:15:06,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-03 02:15:06,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-03 02:15:06,043 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_msg_free [2022-11-03 02:15:06,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_msg_free [2022-11-03 02:15:06,043 INFO L130 BoogieDeclarations]: Found specification of procedure printk_buf [2022-11-03 02:15:06,043 INFO L138 BoogieDeclarations]: Found implementation of procedure printk_buf [2022-11-03 02:15:06,043 INFO L130 BoogieDeclarations]: Found specification of procedure ipw_ethtool_get_drvinfo [2022-11-03 02:15:06,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw_ethtool_get_drvinfo [2022-11-03 02:15:06,044 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-11-03 02:15:06,044 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-11-03 02:15:06,044 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_tx_power [2022-11-03 02:15:06,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_tx_power [2022-11-03 02:15:06,044 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-03 02:15:06,044 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-03 02:15:06,044 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2022-11-03 02:15:06,045 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2022-11-03 02:15:06,045 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-03 02:15:06,045 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-03 02:15:06,045 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-11-03 02:15:06,045 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-11-03 02:15:06,045 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_system_config [2022-11-03 02:15:06,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_system_config [2022-11-03 02:15:06,046 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_kill_works [2022-11-03 02:15:06,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_kill_works [2022-11-03 02:15:06,046 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2022-11-03 02:15:06,046 INFO L138 BoogieDeclarations]: Found implementation of procedure strnlen [2022-11-03 02:15:06,046 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 02:15:06,046 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 02:15:06,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:15:06,047 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_queues_free [2022-11-03 02:15:06,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_queues_free [2022-11-03 02:15:06,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:15:06,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:15:06,047 INFO L130 BoogieDeclarations]: Found specification of procedure rf_kill_active [2022-11-03 02:15:06,047 INFO L138 BoogieDeclarations]: Found implementation of procedure rf_kill_active [2022-11-03 02:15:06,047 INFO L130 BoogieDeclarations]: Found specification of procedure get_seconds [2022-11-03 02:15:06,048 INFO L138 BoogieDeclarations]: Found implementation of procedure get_seconds [2022-11-03 02:15:06,048 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-03 02:15:06,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-03 02:15:06,048 INFO L130 BoogieDeclarations]: Found specification of procedure bd_queue_allocate [2022-11-03 02:15:06,048 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_queue_allocate [2022-11-03 02:15:06,048 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 02:15:06,048 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 02:15:06,048 INFO L130 BoogieDeclarations]: Found specification of procedure libipw_priv [2022-11-03 02:15:06,049 INFO L138 BoogieDeclarations]: Found implementation of procedure libipw_priv [2022-11-03 02:15:06,049 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-03 02:15:06,049 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-03 02:15:06,049 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-03 02:15:06,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-03 02:15:06,049 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_timeout [2022-11-03 02:15:06,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_timeout [2022-11-03 02:15:06,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 02:15:06,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 02:15:06,050 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-03 02:15:06,050 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-03 02:15:06,050 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-03 02:15:06,050 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-03 02:15:06,050 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-03 02:15:06,051 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-03 02:15:06,051 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-03 02:15:06,051 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-03 02:15:06,051 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_open [2022-11-03 02:15:06,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_open [2022-11-03 02:15:06,051 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-03 02:15:06,051 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-03 02:15:06,052 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_queues_initialize [2022-11-03 02:15:06,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_queues_initialize [2022-11-03 02:15:06,052 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-03 02:15:06,052 INFO L130 BoogieDeclarations]: Found specification of procedure pm_qos_update_request [2022-11-03 02:15:06,052 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_qos_update_request [2022-11-03 02:15:06,052 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_associated [2022-11-03 02:15:06,052 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_associated [2022-11-03 02:15:06,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:15:06,053 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_scanning [2022-11-03 02:15:06,053 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_scanning [2022-11-03 02:15:06,053 INFO L130 BoogieDeclarations]: Found specification of procedure read_nic_dword [2022-11-03 02:15:06,053 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nic_dword [2022-11-03 02:15:06,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 02:15:06,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 02:15:06,054 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-03 02:15:06,054 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-03 02:15:06,054 INFO L130 BoogieDeclarations]: Found specification of procedure bd_queue_initialize [2022-11-03 02:15:06,054 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_queue_initialize [2022-11-03 02:15:06,054 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_start_scan [2022-11-03 02:15:06,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_start_scan [2022-11-03 02:15:06,054 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-03 02:15:06,054 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-03 02:15:07,616 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:15:07,626 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:15:21,338 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:17:51,120 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 02:17:51,341 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:17:57,070 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:17:57,071 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-03 02:17:57,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:17:57 BoogieIcfgContainer [2022-11-03 02:17:57,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:17:57,081 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:17:57,082 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:17:57,085 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:17:57,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:14:54" (1/3) ... [2022-11-03 02:17:57,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2181eab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:17:57, skipping insertion in model container [2022-11-03 02:17:57,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:15:04" (2/3) ... [2022-11-03 02:17:57,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2181eab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:17:57, skipping insertion in model container [2022-11-03 02:17:57,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:17:57" (3/3) ... [2022-11-03 02:17:57,089 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-ipw2x00-ipw2100.cil.i [2022-11-03 02:17:57,111 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:17:57,112 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-03 02:17:57,230 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:17:57,237 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;@66ce70fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:17:57,237 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-03 02:17:57,251 INFO L276 IsEmpty]: Start isEmpty. Operand has 2804 states, 1764 states have (on average 1.3395691609977325) internal successors, (2363), 1780 states have internal predecessors, (2363), 874 states have call successors, (874), 165 states have call predecessors, (874), 164 states have return successors, (868), 866 states have call predecessors, (868), 868 states have call successors, (868) [2022-11-03 02:17:57,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-03 02:17:57,276 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:17:57,277 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 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] [2022-11-03 02:17:57,278 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:17:57,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:17:57,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1975603794, now seen corresponding path program 1 times [2022-11-03 02:17:57,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:17:57,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67774427] [2022-11-03 02:17:57,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:57,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:17:58,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:59,893 INFO L134 CoverageAnalysis]: Checked inductivity of 995 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 995 trivial. 0 not checked. [2022-11-03 02:17:59,896 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:17:59,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67774427] [2022-11-03 02:17:59,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67774427] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:17:59,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:17:59,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:17:59,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761365523] [2022-11-03 02:17:59,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:17:59,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:17:59,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:17:59,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:17:59,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:17:59,960 INFO L87 Difference]: Start difference. First operand has 2804 states, 1764 states have (on average 1.3395691609977325) internal successors, (2363), 1780 states have internal predecessors, (2363), 874 states have call successors, (874), 165 states have call predecessors, (874), 164 states have return successors, (868), 866 states have call predecessors, (868), 868 states have call successors, (868) Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-03 02:18:03,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:18:05,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:18:08,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:11,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:15,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:20,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:25,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:27,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:30,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:32,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:35,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:37,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:38,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:18:38,170 INFO L93 Difference]: Finished difference Result 7854 states and 11503 transitions. [2022-11-03 02:18:38,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:18:38,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 183 [2022-11-03 02:18:38,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:18:38,236 INFO L225 Difference]: With dead ends: 7854 [2022-11-03 02:18:38,236 INFO L226 Difference]: Without dead ends: 5073 [2022-11-03 02:18:38,261 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 [2022-11-03 02:18:38,264 INFO L413 NwaCegarLoop]: 4289 mSDtfsCounter, 3330 mSDsluCounter, 4025 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 14 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3335 SdHoareTripleChecker+Valid, 7833 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:18:38,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3335 Valid, 7833 Invalid, 1055 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 1031 Invalid, 10 Unknown, 0 Unchecked, 37.6s Time] [2022-11-03 02:18:38,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5073 states. [2022-11-03 02:18:38,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5073 to 5070. [2022-11-03 02:18:38,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5070 states, 3192 states have (on average 1.3323934837092732) internal successors, (4253), 3223 states have internal predecessors, (4253), 1567 states have call successors, (1567), 311 states have call predecessors, (1567), 309 states have return successors, (1567), 1559 states have call predecessors, (1567), 1564 states have call successors, (1567) [2022-11-03 02:18:38,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5070 states to 5070 states and 7387 transitions. [2022-11-03 02:18:38,700 INFO L78 Accepts]: Start accepts. Automaton has 5070 states and 7387 transitions. Word has length 183 [2022-11-03 02:18:38,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:18:38,705 INFO L495 AbstractCegarLoop]: Abstraction has 5070 states and 7387 transitions. [2022-11-03 02:18:38,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-03 02:18:38,706 INFO L276 IsEmpty]: Start isEmpty. Operand 5070 states and 7387 transitions. [2022-11-03 02:18:38,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-11-03 02:18:38,727 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:18:38,728 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:18:38,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:18:38,728 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:18:38,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:18:38,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1220244726, now seen corresponding path program 1 times [2022-11-03 02:18:38,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:18:38,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790832154] [2022-11-03 02:18:38,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:18:38,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:18:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:18:40,988 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2022-11-03 02:18:40,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:18:40,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790832154] [2022-11-03 02:18:40,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790832154] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:18:40,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:18:40,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:18:40,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486545265] [2022-11-03 02:18:40,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:18:40,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:18:40,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:18:40,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:18:40,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:18:40,992 INFO L87 Difference]: Start difference. First operand 5070 states and 7387 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-03 02:18:47,281 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 [] [2022-11-03 02:18:50,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:18:52,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:18:54,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:18:57,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:59,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:02,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:07,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:09,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:11,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:14,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:16,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:18,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:19,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:19:19,484 INFO L93 Difference]: Finished difference Result 10966 states and 15981 transitions. [2022-11-03 02:19:19,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:19:19,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 198 [2022-11-03 02:19:19,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:19:19,533 INFO L225 Difference]: With dead ends: 10966 [2022-11-03 02:19:19,534 INFO L226 Difference]: Without dead ends: 5929 [2022-11-03 02:19:19,563 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 [2022-11-03 02:19:19,564 INFO L413 NwaCegarLoop]: 4163 mSDtfsCounter, 2286 mSDsluCounter, 4017 mSDsCounter, 0 mSdLazyCounter, 1061 mSolverCounterSat, 17 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2288 SdHoareTripleChecker+Valid, 7700 SdHoareTripleChecker+Invalid, 1088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1061 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:19:19,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2288 Valid, 7700 Invalid, 1088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1061 Invalid, 10 Unknown, 0 Unchecked, 38.0s Time] [2022-11-03 02:19:19,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5929 states. [2022-11-03 02:19:19,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5929 to 5922. [2022-11-03 02:19:19,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5922 states, 3792 states have (on average 1.3380801687763713) internal successors, (5074), 3817 states have internal predecessors, (5074), 1767 states have call successors, (1767), 365 states have call predecessors, (1767), 361 states have return successors, (1766), 1757 states have call predecessors, (1766), 1764 states have call successors, (1766) [2022-11-03 02:19:19,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5922 states to 5922 states and 8607 transitions. [2022-11-03 02:19:19,950 INFO L78 Accepts]: Start accepts. Automaton has 5922 states and 8607 transitions. Word has length 198 [2022-11-03 02:19:19,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:19:19,952 INFO L495 AbstractCegarLoop]: Abstraction has 5922 states and 8607 transitions. [2022-11-03 02:19:19,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-03 02:19:19,953 INFO L276 IsEmpty]: Start isEmpty. Operand 5922 states and 8607 transitions. [2022-11-03 02:19:19,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-11-03 02:19:19,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:19:19,960 INFO L195 NwaCegarLoop]: trace histogram [20, 16, 16, 16, 16, 16, 16, 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] [2022-11-03 02:19:19,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:19:19,961 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:19:19,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:19:19,961 INFO L85 PathProgramCache]: Analyzing trace with hash -268431891, now seen corresponding path program 1 times [2022-11-03 02:19:19,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:19:19,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602410197] [2022-11-03 02:19:19,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:19:19,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:19:20,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:19:22,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1135 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1135 trivial. 0 not checked. [2022-11-03 02:19:22,466 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:19:22,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602410197] [2022-11-03 02:19:22,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602410197] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:19:22,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:19:22,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:19:22,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602853450] [2022-11-03 02:19:22,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:19:22,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:19:22,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:19:22,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:19:22,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:19:22,468 INFO L87 Difference]: Start difference. First operand 5922 states and 8607 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-03 02:19:28,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:30,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:19:34,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:19:37,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:39,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:19:40,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:19:43,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:45,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:49,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:54,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:57,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:59,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:02,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:04,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:06,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:07,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:20:07,478 INFO L93 Difference]: Finished difference Result 9855 states and 14316 transitions. [2022-11-03 02:20:07,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:20:07,480 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 232 [2022-11-03 02:20:07,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:20:07,566 INFO L225 Difference]: With dead ends: 9855 [2022-11-03 02:20:07,567 INFO L226 Difference]: Without dead ends: 9832 [2022-11-03 02:20:07,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:20:07,579 INFO L413 NwaCegarLoop]: 4293 mSDtfsCounter, 3366 mSDsluCounter, 8805 mSDsCounter, 0 mSdLazyCounter, 1490 mSolverCounterSat, 0 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3373 SdHoareTripleChecker+Valid, 12109 SdHoareTripleChecker+Invalid, 1502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1490 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:20:07,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3373 Valid, 12109 Invalid, 1502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1490 Invalid, 12 Unknown, 0 Unchecked, 44.6s Time] [2022-11-03 02:20:07,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9832 states. [2022-11-03 02:20:08,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9832 to 9827. [2022-11-03 02:20:08,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9827 states, 6278 states have (on average 1.3367314431347563) internal successors, (8392), 6320 states have internal predecessors, (8392), 2939 states have call successors, (2939), 614 states have call predecessors, (2939), 608 states have return successors, (2942), 2925 states have call predecessors, (2942), 2936 states have call successors, (2942) [2022-11-03 02:20:08,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9827 states to 9827 states and 14273 transitions. [2022-11-03 02:20:08,288 INFO L78 Accepts]: Start accepts. Automaton has 9827 states and 14273 transitions. Word has length 232 [2022-11-03 02:20:08,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:20:08,290 INFO L495 AbstractCegarLoop]: Abstraction has 9827 states and 14273 transitions. [2022-11-03 02:20:08,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-03 02:20:08,290 INFO L276 IsEmpty]: Start isEmpty. Operand 9827 states and 14273 transitions. [2022-11-03 02:20:08,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-11-03 02:20:08,304 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:20:08,304 INFO L195 NwaCegarLoop]: trace histogram [18, 16, 16, 16, 16, 16, 16, 4, 4, 4, 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] [2022-11-03 02:20:08,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:20:08,305 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:20:08,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:20:08,307 INFO L85 PathProgramCache]: Analyzing trace with hash 813568829, now seen corresponding path program 1 times [2022-11-03 02:20:08,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:20:08,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686639946] [2022-11-03 02:20:08,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:20:08,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:20:08,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:20:10,140 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1053 trivial. 0 not checked. [2022-11-03 02:20:10,141 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:20:10,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686639946] [2022-11-03 02:20:10,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686639946] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:20:10,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:20:10,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:20:10,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149139570] [2022-11-03 02:20:10,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:20:10,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:20:10,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:20:10,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:20:10,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:20:10,143 INFO L87 Difference]: Start difference. First operand 9827 states and 14273 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-03 02:20:15,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:20:18,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:20:21,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:23,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:26,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:29,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:34,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:36,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:38,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:41,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:44,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:46,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:47,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:20:47,022 INFO L93 Difference]: Finished difference Result 27234 states and 39534 transitions. [2022-11-03 02:20:47,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:20:47,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 247 [2022-11-03 02:20:47,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:20:47,150 INFO L225 Difference]: With dead ends: 27234 [2022-11-03 02:20:47,151 INFO L226 Difference]: Without dead ends: 17440 [2022-11-03 02:20:47,211 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 [2022-11-03 02:20:47,212 INFO L413 NwaCegarLoop]: 4310 mSDtfsCounter, 3275 mSDsluCounter, 4052 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 5 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3282 SdHoareTripleChecker+Valid, 7877 SdHoareTripleChecker+Invalid, 1026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:20:47,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3282 Valid, 7877 Invalid, 1026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1009 Invalid, 12 Unknown, 0 Unchecked, 36.1s Time] [2022-11-03 02:20:47,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17440 states. [2022-11-03 02:20:48,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17440 to 17391. [2022-11-03 02:20:48,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17391 states, 11066 states have (on average 1.335803361648292) internal successors, (14782), 11173 states have internal predecessors, (14782), 5221 states have call successors, (5221), 1113 states have call predecessors, (5221), 1102 states have return successors, (5240), 5167 states have call predecessors, (5240), 5218 states have call successors, (5240) [2022-11-03 02:20:48,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17391 states to 17391 states and 25243 transitions. [2022-11-03 02:20:48,441 INFO L78 Accepts]: Start accepts. Automaton has 17391 states and 25243 transitions. Word has length 247 [2022-11-03 02:20:48,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:20:48,441 INFO L495 AbstractCegarLoop]: Abstraction has 17391 states and 25243 transitions. [2022-11-03 02:20:48,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-03 02:20:48,442 INFO L276 IsEmpty]: Start isEmpty. Operand 17391 states and 25243 transitions. [2022-11-03 02:20:48,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-11-03 02:20:48,460 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:20:48,460 INFO L195 NwaCegarLoop]: trace histogram [20, 16, 16, 16, 16, 16, 16, 5, 5, 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] [2022-11-03 02:20:48,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:20:48,461 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:20:48,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:20:48,461 INFO L85 PathProgramCache]: Analyzing trace with hash -876851377, now seen corresponding path program 1 times [2022-11-03 02:20:48,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:20:48,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887331595] [2022-11-03 02:20:48,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:20:48,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:20:48,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:20:50,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1133 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1130 trivial. 0 not checked. [2022-11-03 02:20:50,146 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:20:50,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887331595] [2022-11-03 02:20:50,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887331595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:20:50,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:20:50,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:20:50,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666454929] [2022-11-03 02:20:50,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:20:50,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:20:50,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:20:50,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:20:50,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:20:50,148 INFO L87 Difference]: Start difference. First operand 17391 states and 25243 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-03 02:20:58,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:21:00,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:02,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:07,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:10,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:13,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:17,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:20,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:22,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:25,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:27,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:29,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:30,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:21:30,758 INFO L93 Difference]: Finished difference Result 39240 states and 57040 transitions. [2022-11-03 02:21:30,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:21:30,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 251 [2022-11-03 02:21:30,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:21:30,935 INFO L225 Difference]: With dead ends: 39240 [2022-11-03 02:21:30,935 INFO L226 Difference]: Without dead ends: 23458 [2022-11-03 02:21:31,032 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 [2022-11-03 02:21:31,034 INFO L413 NwaCegarLoop]: 5394 mSDtfsCounter, 2208 mSDsluCounter, 4013 mSDsCounter, 0 mSdLazyCounter, 1317 mSolverCounterSat, 15 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2211 SdHoareTripleChecker+Valid, 8929 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1317 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:21:31,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2211 Valid, 8929 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1317 Invalid, 12 Unknown, 0 Unchecked, 39.7s Time] [2022-11-03 02:21:31,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23458 states. [2022-11-03 02:21:32,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23458 to 23441. [2022-11-03 02:21:32,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23441 states, 14986 states have (on average 1.33844921927132) internal successors, (20058), 15125 states have internal predecessors, (20058), 6973 states have call successors, (6973), 1497 states have call predecessors, (6973), 1480 states have return successors, (7002), 6893 states have call predecessors, (7002), 6970 states have call successors, (7002) [2022-11-03 02:21:32,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23441 states to 23441 states and 34033 transitions. [2022-11-03 02:21:32,761 INFO L78 Accepts]: Start accepts. Automaton has 23441 states and 34033 transitions. Word has length 251 [2022-11-03 02:21:32,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:21:32,762 INFO L495 AbstractCegarLoop]: Abstraction has 23441 states and 34033 transitions. [2022-11-03 02:21:32,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-03 02:21:32,763 INFO L276 IsEmpty]: Start isEmpty. Operand 23441 states and 34033 transitions. [2022-11-03 02:21:32,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-11-03 02:21:32,797 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:21:32,797 INFO L195 NwaCegarLoop]: trace histogram [22, 16, 16, 16, 16, 16, 16, 9, 9, 3, 3, 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, 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] [2022-11-03 02:21:32,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:21:32,798 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:21:32,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:21:32,799 INFO L85 PathProgramCache]: Analyzing trace with hash 450594115, now seen corresponding path program 1 times [2022-11-03 02:21:32,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:21:32,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219155414] [2022-11-03 02:21:32,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:21:32,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:21:33,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:21:35,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1325 trivial. 0 not checked. [2022-11-03 02:21:35,794 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:21:35,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219155414] [2022-11-03 02:21:35,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219155414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:21:35,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:21:35,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:21:35,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516831664] [2022-11-03 02:21:35,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:21:35,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:21:35,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:21:35,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:21:35,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:21:35,796 INFO L87 Difference]: Start difference. First operand 23441 states and 34033 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-03 02:21:43,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:21:46,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:48,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:52,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:21:53,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:55,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:21:58,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:22:02,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:22:05,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:22:09,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:22:13,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:22:17,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:22:20,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:22:22,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:22:25,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:22:27,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:22:29,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:29,905 INFO L93 Difference]: Finished difference Result 41044 states and 60695 transitions. [2022-11-03 02:22:29,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:22:29,906 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 313 [2022-11-03 02:22:29,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:30,122 INFO L225 Difference]: With dead ends: 41044 [2022-11-03 02:22:30,122 INFO L226 Difference]: Without dead ends: 41042 [2022-11-03 02:22:30,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:22:30,144 INFO L413 NwaCegarLoop]: 5193 mSDtfsCounter, 4687 mSDsluCounter, 10029 mSDsCounter, 0 mSdLazyCounter, 1970 mSolverCounterSat, 209 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4900 SdHoareTripleChecker+Valid, 14098 SdHoareTripleChecker+Invalid, 2192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 1970 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:30,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4900 Valid, 14098 Invalid, 2192 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [209 Valid, 1970 Invalid, 13 Unknown, 0 Unchecked, 52.7s Time] [2022-11-03 02:22:30,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41042 states. [2022-11-03 02:22:32,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41042 to 34184. [2022-11-03 02:22:32,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34184 states, 21850 states have (on average 1.3377116704805492) internal successors, (29229), 22047 states have internal predecessors, (29229), 10162 states have call successors, (10162), 2192 states have call predecessors, (10162), 2170 states have return successors, (10208), 10055 states have call predecessors, (10208), 10159 states have call successors, (10208) [2022-11-03 02:22:32,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34184 states to 34184 states and 49599 transitions. [2022-11-03 02:22:32,710 INFO L78 Accepts]: Start accepts. Automaton has 34184 states and 49599 transitions. Word has length 313 [2022-11-03 02:22:32,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:32,711 INFO L495 AbstractCegarLoop]: Abstraction has 34184 states and 49599 transitions. [2022-11-03 02:22:32,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-03 02:22:32,711 INFO L276 IsEmpty]: Start isEmpty. Operand 34184 states and 49599 transitions. [2022-11-03 02:22:32,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2022-11-03 02:22:32,914 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:32,914 INFO L195 NwaCegarLoop]: trace histogram [22, 16, 16, 16, 16, 16, 16, 6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-11-03 02:22:32,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:22:32,915 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:32,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:32,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1688003165, now seen corresponding path program 1 times [2022-11-03 02:22:32,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:22:32,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479548254] [2022-11-03 02:22:32,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:32,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:22:33,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:34,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1284 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1264 trivial. 0 not checked. [2022-11-03 02:22:34,363 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:22:34,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479548254] [2022-11-03 02:22:34,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479548254] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:34,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:34,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:22:34,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605282862] [2022-11-03 02:22:34,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:34,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:22:34,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:22:34,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:22:34,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:22:34,365 INFO L87 Difference]: Start difference. First operand 34184 states and 49599 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-03 02:22:41,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:22:44,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:22:46,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:22:49,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:22:53,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:22:56,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:00,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:03,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:07,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:10,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:12,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:14,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:16,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:18,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:18,476 INFO L93 Difference]: Finished difference Result 82599 states and 119874 transitions. [2022-11-03 02:23:18,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:23:18,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 316 [2022-11-03 02:23:18,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:18,789 INFO L225 Difference]: With dead ends: 82599 [2022-11-03 02:23:18,790 INFO L226 Difference]: Without dead ends: 50024 [2022-11-03 02:23:19,137 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 [2022-11-03 02:23:19,138 INFO L413 NwaCegarLoop]: 6393 mSDtfsCounter, 3279 mSDsluCounter, 4050 mSDsCounter, 0 mSdLazyCounter, 1418 mSolverCounterSat, 4 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3285 SdHoareTripleChecker+Valid, 9958 SdHoareTripleChecker+Invalid, 1435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1418 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:19,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3285 Valid, 9958 Invalid, 1435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1418 Invalid, 13 Unknown, 0 Unchecked, 42.3s Time] [2022-11-03 02:23:19,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50024 states. [2022-11-03 02:23:21,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50024 to 49978. [2022-11-03 02:23:21,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49978 states, 31922 states have (on average 1.3374162019923563) internal successors, (42693), 32224 states have internal predecessors, (42693), 14872 states have call successors, (14872), 3215 states have call predecessors, (14872), 3182 states have return successors, (14942), 14703 states have call predecessors, (14942), 14869 states have call successors, (14942) [2022-11-03 02:23:21,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49978 states to 49978 states and 72507 transitions. [2022-11-03 02:23:21,956 INFO L78 Accepts]: Start accepts. Automaton has 49978 states and 72507 transitions. Word has length 316 [2022-11-03 02:23:21,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:21,958 INFO L495 AbstractCegarLoop]: Abstraction has 49978 states and 72507 transitions. [2022-11-03 02:23:21,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-03 02:23:21,959 INFO L276 IsEmpty]: Start isEmpty. Operand 49978 states and 72507 transitions. [2022-11-03 02:23:22,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2022-11-03 02:23:22,012 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:22,012 INFO L195 NwaCegarLoop]: trace histogram [24, 16, 16, 16, 16, 16, 16, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 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] [2022-11-03 02:23:22,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:23:22,013 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:22,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:22,013 INFO L85 PathProgramCache]: Analyzing trace with hash -2015939742, now seen corresponding path program 1 times [2022-11-03 02:23:22,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:22,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108446611] [2022-11-03 02:23:22,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:22,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:22,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:24,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1400 backedges. 23 proven. 16 refuted. 0 times theorem prover too weak. 1361 trivial. 0 not checked. [2022-11-03 02:23:24,350 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:24,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108446611] [2022-11-03 02:23:24,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108446611] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:23:24,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595755845] [2022-11-03 02:23:24,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:24,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:23:24,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bcc2f8-8b83-4945-b269-85ac47770ee0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:23:24,360 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bcc2f8-8b83-4945-b269-85ac47770ee0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:23:24,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bcc2f8-8b83-4945-b269-85ac47770ee0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:23:29,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:29,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 14301 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 02:23:29,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:30,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1400 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 1193 trivial. 0 not checked. [2022-11-03 02:23:30,059 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:30,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595755845] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:30,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:23:30,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-11-03 02:23:30,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245150348] [2022-11-03 02:23:30,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:30,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:23:30,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:30,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:23:30,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:30,063 INFO L87 Difference]: Start difference. First operand 49978 states and 72507 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-03 02:23:34,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:23:36,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:23:38,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:41,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:44,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:23:47,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:50,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:55,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:58,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:02,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:05,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:07,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:10,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:12,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:13,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:13,746 INFO L93 Difference]: Finished difference Result 145041 states and 210518 transitions. [2022-11-03 02:24:13,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:24:13,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 340 [2022-11-03 02:24:13,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:14,676 INFO L225 Difference]: With dead ends: 145041 [2022-11-03 02:24:14,676 INFO L226 Difference]: Without dead ends: 96672 [2022-11-03 02:24:14,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:24:14,875 INFO L413 NwaCegarLoop]: 4314 mSDtfsCounter, 3310 mSDsluCounter, 3996 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 14 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3315 SdHoareTripleChecker+Valid, 7831 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:14,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3315 Valid, 7831 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1027 Invalid, 12 Unknown, 0 Unchecked, 40.0s Time] [2022-11-03 02:24:14,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96672 states. [2022-11-03 02:24:19,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96672 to 96665. [2022-11-03 02:24:19,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96665 states, 61915 states have (on average 1.3373334410078332) internal successors, (82801), 62430 states have internal predecessors, (82801), 28596 states have call successors, (28596), 6212 states have call predecessors, (28596), 6152 states have return successors, (28741), 28349 states have call predecessors, (28741), 28593 states have call successors, (28741) [2022-11-03 02:24:20,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96665 states to 96665 states and 140138 transitions. [2022-11-03 02:24:20,708 INFO L78 Accepts]: Start accepts. Automaton has 96665 states and 140138 transitions. Word has length 340 [2022-11-03 02:24:20,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:20,709 INFO L495 AbstractCegarLoop]: Abstraction has 96665 states and 140138 transitions. [2022-11-03 02:24:20,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-03 02:24:20,710 INFO L276 IsEmpty]: Start isEmpty. Operand 96665 states and 140138 transitions. [2022-11-03 02:24:20,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2022-11-03 02:24:20,809 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:20,809 INFO L195 NwaCegarLoop]: trace histogram [24, 16, 16, 16, 16, 16, 16, 5, 5, 5, 5, 5, 4, 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, 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] [2022-11-03 02:24:20,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bcc2f8-8b83-4945-b269-85ac47770ee0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:24:21,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bcc2f8-8b83-4945-b269-85ac47770ee0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:24:21,027 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:21,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:21,028 INFO L85 PathProgramCache]: Analyzing trace with hash 2134475037, now seen corresponding path program 1 times [2022-11-03 02:24:21,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:21,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634927424] [2022-11-03 02:24:21,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:21,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:21,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:22,701 INFO L134 CoverageAnalysis]: Checked inductivity of 1403 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 1362 trivial. 0 not checked. [2022-11-03 02:24:22,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:22,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634927424] [2022-11-03 02:24:22,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634927424] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:22,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:22,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:24:22,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699378986] [2022-11-03 02:24:22,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:22,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:24:22,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:22,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:24:22,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:24:22,705 INFO L87 Difference]: Start difference. First operand 96665 states and 140138 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, (35), 2 states have call predecessors, (35), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-03 02:24:23,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:28,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:24:29,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:24:33,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:24:36,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:40,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:44,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:48,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:53,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:57,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:01,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:04,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:06,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:09,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:11,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:13,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:13,679 INFO L93 Difference]: Finished difference Result 222985 states and 323209 transitions. [2022-11-03 02:25:13,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:25:13,680 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, (35), 2 states have call predecessors, (35), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 342 [2022-11-03 02:25:13,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:14,491 INFO L225 Difference]: With dead ends: 222985 [2022-11-03 02:25:14,491 INFO L226 Difference]: Without dead ends: 127929 [2022-11-03 02:25:14,829 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 [2022-11-03 02:25:14,830 INFO L413 NwaCegarLoop]: 6363 mSDtfsCounter, 3274 mSDsluCounter, 4029 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 1 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3279 SdHoareTripleChecker+Valid, 9908 SdHoareTripleChecker+Invalid, 1457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:14,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3279 Valid, 9908 Invalid, 1457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1444 Invalid, 12 Unknown, 0 Unchecked, 45.1s Time] [2022-11-03 02:25:14,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127929 states. [2022-11-03 02:25:21,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127929 to 127926. [2022-11-03 02:25:21,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127926 states, 81978 states have (on average 1.3366756934787383) internal successors, (109578), 82625 states have internal predecessors, (109578), 37799 states have call successors, (37799), 8225 states have call predecessors, (37799), 8147 states have return successors, (37986), 37510 states have call predecessors, (37986), 37796 states have call successors, (37986) [2022-11-03 02:25:22,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127926 states to 127926 states and 185363 transitions. [2022-11-03 02:25:22,453 INFO L78 Accepts]: Start accepts. Automaton has 127926 states and 185363 transitions. Word has length 342 [2022-11-03 02:25:22,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:22,454 INFO L495 AbstractCegarLoop]: Abstraction has 127926 states and 185363 transitions. [2022-11-03 02:25:22,455 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, (35), 2 states have call predecessors, (35), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-03 02:25:22,455 INFO L276 IsEmpty]: Start isEmpty. Operand 127926 states and 185363 transitions. [2022-11-03 02:25:22,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-11-03 02:25:22,541 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:22,541 INFO L195 NwaCegarLoop]: trace histogram [24, 16, 16, 16, 16, 16, 16, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 02:25:22,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 02:25:22,542 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:22,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:22,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1815707076, now seen corresponding path program 1 times [2022-11-03 02:25:22,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:25:22,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126318785] [2022-11-03 02:25:22,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:22,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:25:23,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:24,710 INFO L134 CoverageAnalysis]: Checked inductivity of 1390 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1368 trivial. 0 not checked. [2022-11-03 02:25:24,711 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:25:24,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126318785] [2022-11-03 02:25:24,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126318785] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:24,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:24,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:25:24,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776857366] [2022-11-03 02:25:24,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:24,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:25:24,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:25:24,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:25:24,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:25:24,714 INFO L87 Difference]: Start difference. First operand 127926 states and 185363 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-03 02:25:34,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:25:38,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:40,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:25:43,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:47,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:52,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:56,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:00,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:02,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:05,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:08,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:10,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:12,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:26:12,102 INFO L93 Difference]: Finished difference Result 236655 states and 343105 transitions. [2022-11-03 02:26:12,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:26:12,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 350 [2022-11-03 02:26:12,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:26:13,211 INFO L225 Difference]: With dead ends: 236655 [2022-11-03 02:26:13,212 INFO L226 Difference]: Without dead ends: 152314 [2022-11-03 02:26:13,500 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 [2022-11-03 02:26:13,501 INFO L413 NwaCegarLoop]: 5444 mSDtfsCounter, 2235 mSDsluCounter, 4015 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 15 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2237 SdHoareTripleChecker+Valid, 8979 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:26:13,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2237 Valid, 8979 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1340 Invalid, 11 Unknown, 0 Unchecked, 41.3s Time] [2022-11-03 02:26:13,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152314 states. [2022-11-03 02:26:19,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152314 to 152057. [2022-11-03 02:26:20,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152057 states, 97582 states have (on average 1.3381463794552273) internal successors, (130579), 98311 states have internal predecessors, (130579), 44767 states have call successors, (44767), 9800 states have call predecessors, (44767), 9706 states have return successors, (44984), 44428 states have call predecessors, (44984), 44764 states have call successors, (44984) [2022-11-03 02:26:21,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152057 states to 152057 states and 220330 transitions. [2022-11-03 02:26:21,293 INFO L78 Accepts]: Start accepts. Automaton has 152057 states and 220330 transitions. Word has length 350 [2022-11-03 02:26:21,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:26:21,294 INFO L495 AbstractCegarLoop]: Abstraction has 152057 states and 220330 transitions. [2022-11-03 02:26:21,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-03 02:26:21,295 INFO L276 IsEmpty]: Start isEmpty. Operand 152057 states and 220330 transitions. [2022-11-03 02:26:21,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-11-03 02:26:21,385 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:26:21,385 INFO L195 NwaCegarLoop]: trace histogram [25, 16, 16, 16, 16, 16, 16, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:26:21,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 02:26:21,386 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:26:21,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:26:21,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1365608133, now seen corresponding path program 1 times [2022-11-03 02:26:21,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:26:21,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537307107] [2022-11-03 02:26:21,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:26:21,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:26:21,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:26:22,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1503 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 1468 trivial. 0 not checked. [2022-11-03 02:26:22,754 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:26:22,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537307107] [2022-11-03 02:26:22,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537307107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:26:22,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:26:22,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:26:22,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165412340] [2022-11-03 02:26:22,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:26:22,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:26:22,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:26:22,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:26:22,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:26:22,756 INFO L87 Difference]: Start difference. First operand 152057 states and 220330 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-03 02:26:28,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:26:34,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:36,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:39,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:26:41,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:45,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:51,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:55,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:59,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:27:02,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:27:04,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:27:07,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:27:09,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:27:11,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:27:11,634 INFO L93 Difference]: Finished difference Result 357946 states and 518810 transitions. [2022-11-03 02:27:11,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:27:11,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 360 [2022-11-03 02:27:11,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:27:12,955 INFO L225 Difference]: With dead ends: 357946 [2022-11-03 02:27:12,955 INFO L226 Difference]: Without dead ends: 207498 [2022-11-03 02:27:13,367 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 [2022-11-03 02:27:13,368 INFO L413 NwaCegarLoop]: 6381 mSDtfsCounter, 3281 mSDsluCounter, 4028 mSDsCounter, 0 mSdLazyCounter, 1436 mSolverCounterSat, 8 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3286 SdHoareTripleChecker+Valid, 9926 SdHoareTripleChecker+Invalid, 1455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1436 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:27:13,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3286 Valid, 9926 Invalid, 1455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1436 Invalid, 11 Unknown, 0 Unchecked, 41.2s Time] [2022-11-03 02:27:13,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207498 states. [2022-11-03 02:27:21,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207498 to 207495. [2022-11-03 02:27:21,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207495 states, 133196 states have (on average 1.3376527823658368) internal successors, (178170), 134161 states have internal predecessors, (178170), 61047 states have call successors, (61047), 13376 states have call predecessors, (61047), 13250 states have return successors, (61351), 60620 states have call predecessors, (61351), 61044 states have call successors, (61351) [2022-11-03 02:27:22,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207495 states to 207495 states and 300568 transitions. [2022-11-03 02:27:22,697 INFO L78 Accepts]: Start accepts. Automaton has 207495 states and 300568 transitions. Word has length 360 [2022-11-03 02:27:22,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:27:22,698 INFO L495 AbstractCegarLoop]: Abstraction has 207495 states and 300568 transitions. [2022-11-03 02:27:22,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-03 02:27:22,699 INFO L276 IsEmpty]: Start isEmpty. Operand 207495 states and 300568 transitions. [2022-11-03 02:27:22,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-11-03 02:27:22,786 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:27:22,786 INFO L195 NwaCegarLoop]: trace histogram [24, 16, 16, 16, 16, 16, 16, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 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] [2022-11-03 02:27:22,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 02:27:22,786 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:27:22,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:27:22,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1758474996, now seen corresponding path program 1 times [2022-11-03 02:27:22,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:27:22,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807890469] [2022-11-03 02:27:22,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:27:22,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:27:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat