./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--libertas--libertas.ko-entry_point.cil.out.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_47bbd73d-f480-465b-98c0-c2ab7598f659/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bbd73d-f480-465b-98c0-c2ab7598f659/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_47bbd73d-f480-465b-98c0-c2ab7598f659/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bbd73d-f480-465b-98c0-c2ab7598f659/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--libertas--libertas.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bbd73d-f480-465b-98c0-c2ab7598f659/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_47bbd73d-f480-465b-98c0-c2ab7598f659/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 7d25bbb840c6f559a01e66a93b808b4e2f90bfa6cd2fb8a6d1b061ad8c317d14 --- 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 04:07:02,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 04:07:02,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 04:07:02,866 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 04:07:02,867 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 04:07:02,871 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 04:07:02,874 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 04:07:02,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 04:07:02,881 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 04:07:02,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 04:07:02,891 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 04:07:02,892 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 04:07:02,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 04:07:02,893 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 04:07:02,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 04:07:02,895 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 04:07:02,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 04:07:02,897 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 04:07:02,898 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 04:07:02,900 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 04:07:02,904 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 04:07:02,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 04:07:02,909 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 04:07:02,911 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 04:07:02,926 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 04:07:02,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 04:07:02,927 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 04:07:02,929 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 04:07:02,929 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 04:07:02,930 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 04:07:02,931 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 04:07:02,932 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 04:07:02,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 04:07:02,935 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 04:07:02,936 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 04:07:02,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 04:07:02,937 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 04:07:02,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 04:07:02,938 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 04:07:02,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 04:07:02,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 04:07:02,941 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bbd73d-f480-465b-98c0-c2ab7598f659/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 04:07:02,984 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 04:07:02,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 04:07:02,985 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 04:07:02,985 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 04:07:02,986 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 04:07:02,987 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 04:07:02,987 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 04:07:02,987 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 04:07:02,987 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 04:07:02,988 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 04:07:02,989 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 04:07:02,989 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 04:07:02,989 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 04:07:02,990 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 04:07:02,990 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 04:07:02,990 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 04:07:02,991 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 04:07:02,991 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 04:07:02,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 04:07:02,992 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 04:07:02,992 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 04:07:02,992 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 04:07:02,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 04:07:02,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 04:07:02,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 04:07:02,995 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 04:07:02,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 04:07:02,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 04:07:02,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 04:07:02,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:07:02,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 04:07:02,997 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 04:07:02,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 04:07:02,997 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 04:07:02,997 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 04:07:02,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 04:07:02,998 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 04:07:02,998 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 04:07:02,998 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_47bbd73d-f480-465b-98c0-c2ab7598f659/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bbd73d-f480-465b-98c0-c2ab7598f659/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d25bbb840c6f559a01e66a93b808b4e2f90bfa6cd2fb8a6d1b061ad8c317d14 [2022-11-03 04:07:03,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:07:03,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:07:03,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:07:03,323 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:07:03,324 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:07:03,325 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bbd73d-f480-465b-98c0-c2ab7598f659/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--libertas--libertas.ko-entry_point.cil.out.i [2022-11-03 04:07:03,395 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bbd73d-f480-465b-98c0-c2ab7598f659/bin/utaipan-7li7fVZpFI/data/412dfa256/25f3648d61574c2fb17a6f2b4c2a1a3a/FLAG2bb250a28 [2022-11-03 04:07:04,629 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:07:04,629 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bbd73d-f480-465b-98c0-c2ab7598f659/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--libertas--libertas.ko-entry_point.cil.out.i [2022-11-03 04:07:04,707 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bbd73d-f480-465b-98c0-c2ab7598f659/bin/utaipan-7li7fVZpFI/data/412dfa256/25f3648d61574c2fb17a6f2b4c2a1a3a/FLAG2bb250a28 [2022-11-03 04:07:04,771 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bbd73d-f480-465b-98c0-c2ab7598f659/bin/utaipan-7li7fVZpFI/data/412dfa256/25f3648d61574c2fb17a6f2b4c2a1a3a [2022-11-03 04:07:04,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:07:04,776 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:07:04,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:07:04,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:07:04,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:07:04,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:07:04" (1/1) ... [2022-11-03 04:07:04,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56c7bd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:04, skipping insertion in model container [2022-11-03 04:07:04,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:07:04" (1/1) ... [2022-11-03 04:07:04,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:07:04,997 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:07:12,845 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_47bbd73d-f480-465b-98c0-c2ab7598f659/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--libertas--libertas.ko-entry_point.cil.out.i[707977,707990] [2022-11-03 04:07:12,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:07:13,112 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:07:14,104 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_47bbd73d-f480-465b-98c0-c2ab7598f659/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--libertas--libertas.ko-entry_point.cil.out.i[707977,707990] [2022-11-03 04:07:14,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:07:14,666 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:07:14,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:14 WrapperNode [2022-11-03 04:07:14,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:07:14,668 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:07:14,668 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:07:14,668 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:07:14,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:14" (1/1) ... [2022-11-03 04:07:14,927 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:14" (1/1) ... [2022-11-03 04:07:15,420 INFO L138 Inliner]: procedures = 738, calls = 10941, calls flagged for inlining = 281, calls inlined = 249, statements flattened = 18182 [2022-11-03 04:07:15,421 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:07:15,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:07:15,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:07:15,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:07:15,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:14" (1/1) ... [2022-11-03 04:07:15,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:14" (1/1) ... [2022-11-03 04:07:15,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:14" (1/1) ... [2022-11-03 04:07:15,540 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:14" (1/1) ... [2022-11-03 04:07:15,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:14" (1/1) ... [2022-11-03 04:07:16,033 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:14" (1/1) ... [2022-11-03 04:07:16,110 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:14" (1/1) ... [2022-11-03 04:07:16,241 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:14" (1/1) ... [2022-11-03 04:07:16,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:07:16,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:07:16,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:07:16,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:07:16,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:14" (1/1) ... [2022-11-03 04:07:16,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:07:16,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bbd73d-f480-465b-98c0-c2ab7598f659/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:07:16,366 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bbd73d-f480-465b-98c0-c2ab7598f659/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:07:16,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bbd73d-f480-465b-98c0-c2ab7598f659/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:07:16,423 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mac_event_disconnected [2022-11-03 04:07:16,423 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mac_event_disconnected [2022-11-03 04:07:16,423 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2022-11-03 04:07:16,424 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2022-11-03 04:07:16,424 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-03 04:07:16,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 04:07:16,424 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 04:07:16,424 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_access [2022-11-03 04:07:16,425 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_access [2022-11-03 04:07:16,425 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_inform_bss [2022-11-03 04:07:16,425 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_inform_bss [2022-11-03 04:07:16,425 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 04:07:16,426 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 04:07:16,426 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-03 04:07:16,426 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-03 04:07:16,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-03 04:07:16,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-03 04:07:16,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 04:07:16,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 04:07:16,427 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_channel [2022-11-03 04:07:16,427 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_channel [2022-11-03 04:07:16,427 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_mesh [2022-11-03 04:07:16,427 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_mesh [2022-11-03 04:07:16,428 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-11-03 04:07:16,428 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-11-03 04:07:16,428 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-03 04:07:16,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-03 04:07:16,428 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2022-11-03 04:07:16,428 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2022-11-03 04:07:16,429 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_scan [2022-11-03 04:07:16,429 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_scan [2022-11-03 04:07:16,429 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_should_stop [2022-11-03 04:07:16,429 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_should_stop [2022-11-03 04:07:16,429 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-03 04:07:16,430 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-03 04:07:16,430 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_ps_confirm_sleep [2022-11-03 04:07:16,430 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_ps_confirm_sleep [2022-11-03 04:07:16,430 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~X~~u16~0~TO~int [2022-11-03 04:07:16,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~X~~u16~0~TO~int [2022-11-03 04:07:16,431 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_free [2022-11-03 04:07:16,431 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_free [2022-11-03 04:07:16,431 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_host_sleep_cfg [2022-11-03 04:07:16,432 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_host_sleep_cfg [2022-11-03 04:07:16,432 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2022-11-03 04:07:16,432 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2022-11-03 04:07:16,432 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-03 04:07:16,433 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 04:07:16,433 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 04:07:16,433 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 04:07:16,434 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 04:07:16,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 04:07:16,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 04:07:16,435 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 04:07:16,435 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 04:07:16,435 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2022-11-03 04:07:16,435 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_key_material [2022-11-03 04:07:16,436 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_key_material [2022-11-03 04:07:16,436 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_cmd_async [2022-11-03 04:07:16,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_cmd_async [2022-11-03 04:07:16,437 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_wep_keys [2022-11-03 04:07:16,437 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_wep_keys [2022-11-03 04:07:16,438 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-03 04:07:16,438 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-03 04:07:16,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 04:07:16,438 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_auth_to_authtype [2022-11-03 04:07:16,438 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_auth_to_authtype [2022-11-03 04:07:16,438 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-11-03 04:07:16,439 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-11-03 04:07:16,439 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2022-11-03 04:07:16,439 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2022-11-03 04:07:16,439 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-03 04:07:16,440 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-03 04:07:16,440 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_eth_stop [2022-11-03 04:07:16,440 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_eth_stop [2022-11-03 04:07:16,441 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-11-03 04:07:16,441 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-11-03 04:07:16,441 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_free_adapter [2022-11-03 04:07:16,441 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_free_adapter [2022-11-03 04:07:16,441 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 04:07:16,441 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 04:07:16,442 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_iface_active [2022-11-03 04:07:16,442 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_iface_active [2022-11-03 04:07:16,443 INFO L130 BoogieDeclarations]: Found specification of procedure _internal_start_scan [2022-11-03 04:07:16,443 INFO L138 BoogieDeclarations]: Found implementation of procedure _internal_start_scan [2022-11-03 04:07:16,443 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_ps_mode [2022-11-03 04:07:16,443 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_ps_mode [2022-11-03 04:07:16,443 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-03 04:07:16,443 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-03 04:07:16,443 INFO L130 BoogieDeclarations]: Found specification of procedure add_ie_rates [2022-11-03 04:07:16,444 INFO L138 BoogieDeclarations]: Found implementation of procedure add_ie_rates [2022-11-03 04:07:16,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 04:07:16,444 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_remove_mesh [2022-11-03 04:07:16,444 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_remove_mesh [2022-11-03 04:07:16,444 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_ethtool_get_eeprom_len [2022-11-03 04:07:16,444 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_ethtool_get_eeprom_len [2022-11-03 04:07:16,444 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-11-03 04:07:16,444 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-11-03 04:07:16,445 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cmd_async [2022-11-03 04:07:16,445 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cmd_async [2022-11-03 04:07:16,445 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_activated [2022-11-03 04:07:16,445 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_activated [2022-11-03 04:07:16,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 04:07:16,445 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_complete_command [2022-11-03 04:07:16,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_complete_command [2022-11-03 04:07:16,446 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2022-11-03 04:07:16,446 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2022-11-03 04:07:16,446 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_3 [2022-11-03 04:07:16,446 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_3 [2022-11-03 04:07:16,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 04:07:16,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 04:07:16,446 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 04:07:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_mcast_worker [2022-11-03 04:07:16,447 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_mcast_worker [2022-11-03 04:07:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-03 04:07:16,447 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-03 04:07:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 04:07:16,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 04:07:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-11-03 04:07:16,448 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-11-03 04:07:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-03 04:07:16,448 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-03 04:07:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_priv [2022-11-03 04:07:16,448 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_priv [2022-11-03 04:07:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_disconnect [2022-11-03 04:07:16,448 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_disconnect [2022-11-03 04:07:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-11-03 04:07:16,449 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-11-03 04:07:16,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-03 04:07:16,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-03 04:07:16,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 04:07:16,449 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2022-11-03 04:07:16,449 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2022-11-03 04:07:16,449 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-03 04:07:16,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-03 04:07:16,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 04:07:16,450 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_stop [2022-11-03 04:07:16,450 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_stop [2022-11-03 04:07:16,450 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_dev_open [2022-11-03 04:07:16,450 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_dev_open [2022-11-03 04:07:16,450 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_remove_wep_keys [2022-11-03 04:07:16,450 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_remove_wep_keys [2022-11-03 04:07:16,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 04:07:16,451 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_complete_command [2022-11-03 04:07:16,451 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_complete_command [2022-11-03 04:07:16,451 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 04:07:16,451 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_put_bss [2022-11-03 04:07:16,451 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_put_bss [2022-11-03 04:07:16,451 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 04:07:16,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 04:07:16,452 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-03 04:07:16,452 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-03 04:07:16,452 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 04:07:16,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 04:07:16,452 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-03 04:07:16,452 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-03 04:07:16,453 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_snmp_mib [2022-11-03 04:07:16,453 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_snmp_mib [2022-11-03 04:07:16,453 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_update_mcast [2022-11-03 04:07:16,453 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_update_mcast [2022-11-03 04:07:16,453 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_11d_domain_info [2022-11-03 04:07:16,453 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_11d_domain_info [2022-11-03 04:07:16,453 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-03 04:07:16,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-03 04:07:16,454 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 04:07:16,454 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 04:07:16,454 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_rates [2022-11-03 04:07:16,454 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_rates [2022-11-03 04:07:16,454 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-11-03 04:07:16,454 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-11-03 04:07:16,454 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-03 04:07:16,455 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-03 04:07:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_iface_type [2022-11-03 04:07:16,455 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_iface_type [2022-11-03 04:07:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_mac_control [2022-11-03 04:07:16,455 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_mac_control [2022-11-03 04:07:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-03 04:07:16,455 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-03 04:07:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:07:16,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:07:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_resume [2022-11-03 04:07:16,456 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_resume [2022-11-03 04:07:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_add_key [2022-11-03 04:07:16,456 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_add_key [2022-11-03 04:07:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 04:07:16,457 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 04:07:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_dev_open [2022-11-03 04:07:16,457 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_dev_open [2022-11-03 04:07:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_set_mesh_channel [2022-11-03 04:07:16,457 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_set_mesh_channel [2022-11-03 04:07:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_leave_ibss [2022-11-03 04:07:16,457 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_leave_ibss [2022-11-03 04:07:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 04:07:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 04:07:16,458 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_get_chandef_type [2022-11-03 04:07:16,458 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_get_chandef_type [2022-11-03 04:07:16,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 04:07:16,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 04:07:16,458 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_scan_worker [2022-11-03 04:07:16,458 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_scan_worker [2022-11-03 04:07:16,458 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-03 04:07:16,459 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-03 04:07:16,459 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_get_channel [2022-11-03 04:07:16,459 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_get_channel [2022-11-03 04:07:16,459 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-03 04:07:16,459 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-03 04:07:16,459 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-03 04:07:16,459 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-03 04:07:16,460 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_suspend [2022-11-03 04:07:16,460 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_suspend [2022-11-03 04:07:16,460 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-03 04:07:16,460 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-03 04:07:16,460 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 04:07:16,460 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 04:07:16,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 04:07:16,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 04:07:16,461 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_multicast_list [2022-11-03 04:07:16,461 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_multicast_list [2022-11-03 04:07:16,461 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-03 04:07:16,461 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-03 04:07:16,461 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_set_monitor_channel [2022-11-03 04:07:16,461 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_set_monitor_channel [2022-11-03 04:07:16,461 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2022-11-03 04:07:16,461 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2022-11-03 04:07:16,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 04:07:16,462 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 04:07:16,462 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_get_bss [2022-11-03 04:07:16,462 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_get_bss [2022-11-03 04:07:16,462 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 04:07:16,462 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 04:07:16,462 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_thread [2022-11-03 04:07:16,463 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_thread [2022-11-03 04:07:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_scan_done [2022-11-03 04:07:16,463 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_scan_done [2022-11-03 04:07:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 04:07:16,463 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 04:07:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure eth_broadcast_addr [2022-11-03 04:07:16,463 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_broadcast_addr [2022-11-03 04:07:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-03 04:07:16,464 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-03 04:07:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-03 04:07:16,464 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-03 04:07:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-03 04:07:16,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-03 04:07:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_4 [2022-11-03 04:07:16,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_4 [2022-11-03 04:07:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_3 [2022-11-03 04:07:16,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_3 [2022-11-03 04:07:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 04:07:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_5 [2022-11-03 04:07:16,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_5 [2022-11-03 04:07:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 04:07:16,465 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 04:07:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_deep_sleep [2022-11-03 04:07:16,465 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_deep_sleep [2022-11-03 04:07:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_change_intf [2022-11-03 04:07:16,466 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_change_intf [2022-11-03 04:07:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_deb_hex [2022-11-03 04:07:16,466 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_deb_hex [2022-11-03 04:07:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 04:07:16,466 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 04:07:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 04:07:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_2 [2022-11-03 04:07:16,467 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_2 [2022-11-03 04:07:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-03 04:07:16,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-03 04:07:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_setup_firmware [2022-11-03 04:07:16,467 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_setup_firmware [2022-11-03 04:07:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_del_key [2022-11-03 04:07:16,467 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_del_key [2022-11-03 04:07:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_2 [2022-11-03 04:07:16,467 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_2 [2022-11-03 04:07:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 04:07:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-03 04:07:16,468 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-03 04:07:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_config [2022-11-03 04:07:16,468 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_config [2022-11-03 04:07:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 04:07:16,468 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 04:07:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-03 04:07:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-03 04:07:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-11-03 04:07:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-11-03 04:07:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-03 04:07:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-03 04:07:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_monitor_mode [2022-11-03 04:07:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_monitor_mode [2022-11-03 04:07:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_join_ibss [2022-11-03 04:07:16,470 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_join_ibss [2022-11-03 04:07:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure simple_read_from_buffer [2022-11-03 04:07:16,470 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_read_from_buffer [2022-11-03 04:07:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-03 04:07:16,470 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-03 04:07:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2022-11-03 04:07:16,470 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2022-11-03 04:07:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_bss_get_ie [2022-11-03 04:07:16,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_bss_get_ie [2022-11-03 04:07:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-03 04:07:16,471 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-03 04:07:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_cmd [2022-11-03 04:07:16,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_cmd [2022-11-03 04:07:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_command_queue_empty [2022-11-03 04:07:16,471 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_command_queue_empty [2022-11-03 04:07:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2022-11-03 04:07:16,472 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2022-11-03 04:07:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_set_default_key [2022-11-03 04:07:16,472 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_set_default_key [2022-11-03 04:07:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_enable_rsn [2022-11-03 04:07:16,472 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_enable_rsn [2022-11-03 04:07:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_process_event [2022-11-03 04:07:16,472 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_process_event [2022-11-03 04:07:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 04:07:16,473 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 04:07:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-11-03 04:07:16,473 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-11-03 04:07:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_send_mic_failureevent [2022-11-03 04:07:16,473 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_send_mic_failureevent [2022-11-03 04:07:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_3 [2022-11-03 04:07:16,473 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_3 [2022-11-03 04:07:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 04:07:16,474 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 04:07:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_join_post [2022-11-03 04:07:16,474 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_join_post [2022-11-03 04:07:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 04:07:16,474 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 04:07:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure ether_setup [2022-11-03 04:07:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2022-11-03 04:07:16,475 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2022-11-03 04:07:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 04:07:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_stop_iface [2022-11-03 04:07:16,475 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_stop_iface [2022-11-03 04:07:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-03 04:07:16,475 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-03 04:07:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 04:07:16,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 04:07:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_radio [2022-11-03 04:07:16,476 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_radio [2022-11-03 04:07:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_debugfs_write [2022-11-03 04:07:16,476 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_debugfs_write [2022-11-03 04:07:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_mcast_addrs [2022-11-03 04:07:16,476 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_mcast_addrs [2022-11-03 04:07:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_start_iface [2022-11-03 04:07:16,477 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_start_iface [2022-11-03 04:07:16,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-03 04:07:16,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-03 04:07:16,477 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_mac_address [2022-11-03 04:07:16,477 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_mac_address [2022-11-03 04:07:16,477 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-03 04:07:16,477 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-03 04:07:16,478 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-03 04:07:16,478 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-03 04:07:16,478 INFO L130 BoogieDeclarations]: Found specification of procedure mesh_get_default_parameters [2022-11-03 04:07:16,478 INFO L138 BoogieDeclarations]: Found implementation of procedure mesh_get_default_parameters [2022-11-03 04:07:16,478 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_deb_hex___3 [2022-11-03 04:07:16,478 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_deb_hex___3 [2022-11-03 04:07:16,478 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_deb_hex___0 [2022-11-03 04:07:16,478 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_deb_hex___0 [2022-11-03 04:07:16,479 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-03 04:07:16,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-03 04:07:16,479 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_ssid_tlv [2022-11-03 04:07:16,479 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_ssid_tlv [2022-11-03 04:07:16,479 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_2 [2022-11-03 04:07:16,479 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_2 [2022-11-03 04:07:16,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_17 [2022-11-03 04:07:16,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_17 [2022-11-03 04:07:16,480 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_hard_start_xmit [2022-11-03 04:07:16,480 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_hard_start_xmit [2022-11-03 04:07:16,480 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_mesh_config_send [2022-11-03 04:07:16,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_mesh_config_send [2022-11-03 04:07:16,480 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_config_send [2022-11-03 04:07:16,480 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_config_send [2022-11-03 04:07:16,480 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_disconnected [2022-11-03 04:07:16,480 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_disconnected [2022-11-03 04:07:16,481 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-03 04:07:16,481 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-03 04:07:16,481 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_cleanup_and_insert_cmd [2022-11-03 04:07:16,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_cleanup_and_insert_cmd [2022-11-03 04:07:16,481 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-11-03 04:07:16,481 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-11-03 04:07:16,481 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_host_sleep [2022-11-03 04:07:16,481 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_host_sleep [2022-11-03 04:07:16,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 04:07:16,482 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_get_station [2022-11-03 04:07:16,482 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_get_station [2022-11-03 04:07:16,482 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-03 04:07:16,482 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-03 04:07:16,482 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-03 04:07:16,482 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-03 04:07:18,305 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:07:18,310 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:07:18,800 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 04:15:44,296 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:15:50,652 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:15:50,652 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 04:15:50,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:15:50 BoogieIcfgContainer [2022-11-03 04:15:50,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:15:50,661 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:15:50,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:15:50,671 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:15:50,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:07:04" (1/3) ... [2022-11-03 04:15:50,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6189b511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:15:50, skipping insertion in model container [2022-11-03 04:15:50,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:14" (2/3) ... [2022-11-03 04:15:50,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6189b511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:15:50, skipping insertion in model container [2022-11-03 04:15:50,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:15:50" (3/3) ... [2022-11-03 04:15:50,674 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--libertas--libertas.ko-entry_point.cil.out.i [2022-11-03 04:15:50,694 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:15:50,694 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 04:15:50,837 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:15:50,846 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;@170e42c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:15:50,847 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 04:15:50,862 INFO L276 IsEmpty]: Start isEmpty. Operand has 4009 states, 2645 states have (on average 1.375803402646503) internal successors, (3639), 2745 states have internal predecessors, (3639), 1180 states have call successors, (1180), 183 states have call predecessors, (1180), 182 states have return successors, (1159), 1138 states have call predecessors, (1159), 1159 states have call successors, (1159) [2022-11-03 04:15:50,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-03 04:15:50,905 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:15:50,906 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-03 04:15:50,907 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:15:50,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:15:50,914 INFO L85 PathProgramCache]: Analyzing trace with hash 304817484, now seen corresponding path program 1 times [2022-11-03 04:15:50,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:15:50,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308204146] [2022-11-03 04:15:50,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:15:50,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:15:51,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:15:53,267 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-11-03 04:15:53,267 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:15:53,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308204146] [2022-11-03 04:15:53,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308204146] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:15:53,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:15:53,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:15:53,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086608671] [2022-11-03 04:15:53,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:15:53,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:15:53,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:15:53,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:15:53,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:15:53,319 INFO L87 Difference]: Start difference. First operand has 4009 states, 2645 states have (on average 1.375803402646503) internal successors, (3639), 2745 states have internal predecessors, (3639), 1180 states have call successors, (1180), 183 states have call predecessors, (1180), 182 states have return successors, (1159), 1138 states have call predecessors, (1159), 1159 states have call successors, (1159) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-03 04:15:55,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:15:59,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:16:02,010 WARN L539 Checker$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 04:16:06,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:16:06,191 INFO L93 Difference]: Finished difference Result 11848 states and 17767 transitions. [2022-11-03 04:16:06,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:16:06,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 91 [2022-11-03 04:16:06,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:16:06,270 INFO L225 Difference]: With dead ends: 11848 [2022-11-03 04:16:06,270 INFO L226 Difference]: Without dead ends: 7767 [2022-11-03 04:16:06,299 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 04:16:06,302 INFO L413 NwaCegarLoop]: 6326 mSDtfsCounter, 5718 mSDsluCounter, 5958 mSDsCounter, 0 mSdLazyCounter, 1497 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5726 SdHoareTripleChecker+Valid, 11541 SdHoareTripleChecker+Invalid, 1501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1497 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:16:06,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5726 Valid, 11541 Invalid, 1501 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1497 Invalid, 2 Unknown, 0 Unchecked, 12.3s Time] [2022-11-03 04:16:06,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7767 states. [2022-11-03 04:16:06,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7767 to 7762. [2022-11-03 04:16:06,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7762 states, 5150 states have (on average 1.3677669902912621) internal successors, (7044), 5304 states have internal predecessors, (7044), 2253 states have call successors, (2253), 359 states have call predecessors, (2253), 358 states have return successors, (2260), 2208 states have call predecessors, (2260), 2252 states have call successors, (2260) [2022-11-03 04:16:07,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7762 states to 7762 states and 11557 transitions. [2022-11-03 04:16:07,014 INFO L78 Accepts]: Start accepts. Automaton has 7762 states and 11557 transitions. Word has length 91 [2022-11-03 04:16:07,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:16:07,015 INFO L495 AbstractCegarLoop]: Abstraction has 7762 states and 11557 transitions. [2022-11-03 04:16:07,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-03 04:16:07,015 INFO L276 IsEmpty]: Start isEmpty. Operand 7762 states and 11557 transitions. [2022-11-03 04:16:07,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-03 04:16:07,032 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:16:07,032 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 04:16:07,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 04:16:07,033 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:16:07,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:16:07,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1573157069, now seen corresponding path program 1 times [2022-11-03 04:16:07,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:16:07,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921555584] [2022-11-03 04:16:07,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:16:07,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:16:07,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:16:09,496 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-03 04:16:09,496 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:16:09,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921555584] [2022-11-03 04:16:09,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921555584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:16:09,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:16:09,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:16:09,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913249059] [2022-11-03 04:16:09,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:16:09,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:16:09,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:16:09,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:16:09,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:16:09,503 INFO L87 Difference]: Start difference. First operand 7762 states and 11557 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, (13), 2 states have call predecessors, (13), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 04:16:11,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:16:14,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:16:16,971 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 04:16:18,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:16:18,156 INFO L93 Difference]: Finished difference Result 15563 states and 23145 transitions. [2022-11-03 04:16:18,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:16:18,158 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, (13), 2 states have call predecessors, (13), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 84 [2022-11-03 04:16:18,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:16:18,204 INFO L225 Difference]: With dead ends: 15563 [2022-11-03 04:16:18,205 INFO L226 Difference]: Without dead ends: 7808 [2022-11-03 04:16:18,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:16:18,241 INFO L413 NwaCegarLoop]: 5165 mSDtfsCounter, 5861 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5863 SdHoareTripleChecker+Valid, 5263 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:16:18,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5863 Valid, 5263 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 791 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2022-11-03 04:16:18,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7808 states. [2022-11-03 04:16:18,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7808 to 7805. [2022-11-03 04:16:18,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7805 states, 5173 states have (on average 1.3657452155422385) internal successors, (7065), 5327 states have internal predecessors, (7065), 2259 states have call successors, (2259), 373 states have call predecessors, (2259), 372 states have return successors, (2266), 2215 states have call predecessors, (2266), 2258 states have call successors, (2266) [2022-11-03 04:16:18,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7805 states to 7805 states and 11590 transitions. [2022-11-03 04:16:18,853 INFO L78 Accepts]: Start accepts. Automaton has 7805 states and 11590 transitions. Word has length 84 [2022-11-03 04:16:18,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:16:18,853 INFO L495 AbstractCegarLoop]: Abstraction has 7805 states and 11590 transitions. [2022-11-03 04:16:18,853 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, (13), 2 states have call predecessors, (13), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 04:16:18,854 INFO L276 IsEmpty]: Start isEmpty. Operand 7805 states and 11590 transitions. [2022-11-03 04:16:18,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-03 04:16:18,860 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:16:18,860 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 04:16:18,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 04:16:18,861 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:16:18,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:16:18,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1649483316, now seen corresponding path program 1 times [2022-11-03 04:16:18,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:16:18,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211393336] [2022-11-03 04:16:18,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:16:18,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:16:19,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:16:21,003 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-03 04:16:21,003 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:16:21,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211393336] [2022-11-03 04:16:21,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211393336] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:16:21,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:16:21,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:16:21,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491129437] [2022-11-03 04:16:21,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:16:21,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:16:21,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:16:21,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:16:21,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:16:21,006 INFO L87 Difference]: Start difference. First operand 7805 states and 11590 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 04:16:23,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:16:26,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:16:28,227 WARN L539 Checker$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 04:16:29,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:16:29,507 INFO L93 Difference]: Finished difference Result 15587 states and 23154 transitions. [2022-11-03 04:16:29,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:16:29,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 83 [2022-11-03 04:16:29,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:16:29,614 INFO L225 Difference]: With dead ends: 15587 [2022-11-03 04:16:29,614 INFO L226 Difference]: Without dead ends: 7806 [2022-11-03 04:16:29,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:16:29,644 INFO L413 NwaCegarLoop]: 5162 mSDtfsCounter, 5858 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5860 SdHoareTripleChecker+Valid, 5260 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:16:29,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5860 Valid, 5260 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 791 Invalid, 2 Unknown, 0 Unchecked, 8.0s Time] [2022-11-03 04:16:29,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7806 states. [2022-11-03 04:16:30,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7806 to 7803. [2022-11-03 04:16:30,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7803 states, 5173 states have (on average 1.3653585926928282) internal successors, (7063), 5325 states have internal predecessors, (7063), 2257 states have call successors, (2257), 373 states have call predecessors, (2257), 372 states have return successors, (2264), 2215 states have call predecessors, (2264), 2256 states have call successors, (2264) [2022-11-03 04:16:30,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7803 states to 7803 states and 11584 transitions. [2022-11-03 04:16:30,337 INFO L78 Accepts]: Start accepts. Automaton has 7803 states and 11584 transitions. Word has length 83 [2022-11-03 04:16:30,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:16:30,338 INFO L495 AbstractCegarLoop]: Abstraction has 7803 states and 11584 transitions. [2022-11-03 04:16:30,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 04:16:30,339 INFO L276 IsEmpty]: Start isEmpty. Operand 7803 states and 11584 transitions. [2022-11-03 04:16:30,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-03 04:16:30,345 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:16:30,346 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 04:16:30,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 04:16:30,346 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:16:30,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:16:30,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1201198773, now seen corresponding path program 1 times [2022-11-03 04:16:30,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:16:30,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933160764] [2022-11-03 04:16:30,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:16:30,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:16:30,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:16:32,137 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-03 04:16:32,137 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:16:32,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933160764] [2022-11-03 04:16:32,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933160764] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:16:32,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:16:32,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:16:32,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976052414] [2022-11-03 04:16:32,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:16:32,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:16:32,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:16:32,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:16:32,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:16:32,139 INFO L87 Difference]: Start difference. First operand 7803 states and 11584 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 04:16:34,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:16:39,555 WARN L539 Checker$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 04:16:42,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:16:47,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:16:47,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:16:47,517 INFO L93 Difference]: Finished difference Result 15663 states and 23244 transitions. [2022-11-03 04:16:47,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:16:47,519 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 82 [2022-11-03 04:16:47,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:16:47,561 INFO L225 Difference]: With dead ends: 15663 [2022-11-03 04:16:47,561 INFO L226 Difference]: Without dead ends: 7884 [2022-11-03 04:16:47,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:16:47,585 INFO L413 NwaCegarLoop]: 5202 mSDtfsCounter, 9270 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 2269 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9279 SdHoareTripleChecker+Valid, 5388 SdHoareTripleChecker+Invalid, 3075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2269 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2022-11-03 04:16:47,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9279 Valid, 5388 Invalid, 3075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2269 Valid, 802 Invalid, 4 Unknown, 0 Unchecked, 14.9s Time] [2022-11-03 04:16:47,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7884 states. [2022-11-03 04:16:48,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7884 to 7881. [2022-11-03 04:16:48,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7881 states, 5220 states have (on average 1.3636015325670499) internal successors, (7118), 5372 states have internal predecessors, (7118), 2274 states have call successors, (2274), 386 states have call predecessors, (2274), 386 states have return successors, (2290), 2234 states have call predecessors, (2290), 2273 states have call successors, (2290) [2022-11-03 04:16:48,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7881 states to 7881 states and 11682 transitions. [2022-11-03 04:16:48,200 INFO L78 Accepts]: Start accepts. Automaton has 7881 states and 11682 transitions. Word has length 82 [2022-11-03 04:16:48,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:16:48,201 INFO L495 AbstractCegarLoop]: Abstraction has 7881 states and 11682 transitions. [2022-11-03 04:16:48,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 04:16:48,201 INFO L276 IsEmpty]: Start isEmpty. Operand 7881 states and 11682 transitions. [2022-11-03 04:16:48,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-03 04:16:48,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:16:48,208 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 04:16:48,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 04:16:48,209 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:16:48,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:16:48,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1881201780, now seen corresponding path program 1 times [2022-11-03 04:16:48,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:16:48,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144159781] [2022-11-03 04:16:48,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:16:48,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:16:48,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:16:50,072 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-03 04:16:50,073 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:16:50,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144159781] [2022-11-03 04:16:50,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144159781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:16:50,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:16:50,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:16:50,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884552389] [2022-11-03 04:16:50,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:16:50,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:16:50,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:16:50,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:16:50,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:16:50,075 INFO L87 Difference]: Start difference. First operand 7881 states and 11682 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 04:16:52,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:16:54,366 WARN L539 Checker$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 04:16:57,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:16:59,655 WARN L539 Checker$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 04:17:00,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:17:00,943 INFO L93 Difference]: Finished difference Result 15703 states and 23284 transitions. [2022-11-03 04:17:00,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:17:00,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 85 [2022-11-03 04:17:00,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:17:00,974 INFO L225 Difference]: With dead ends: 15703 [2022-11-03 04:17:00,975 INFO L226 Difference]: Without dead ends: 7846 [2022-11-03 04:17:00,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:17:00,998 INFO L413 NwaCegarLoop]: 5178 mSDtfsCounter, 5770 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5779 SdHoareTripleChecker+Valid, 5528 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:17:00,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5779 Valid, 5528 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 855 Invalid, 3 Unknown, 0 Unchecked, 10.5s Time] [2022-11-03 04:17:01,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7846 states. [2022-11-03 04:17:01,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7846 to 7843. [2022-11-03 04:17:01,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7843 states, 5198 states have (on average 1.363601385148134) internal successors, (7088), 5348 states have internal predecessors, (7088), 2260 states have call successors, (2260), 384 states have call predecessors, (2260), 384 states have return successors, (2276), 2220 states have call predecessors, (2276), 2259 states have call successors, (2276) [2022-11-03 04:17:01,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7843 states to 7843 states and 11624 transitions. [2022-11-03 04:17:01,672 INFO L78 Accepts]: Start accepts. Automaton has 7843 states and 11624 transitions. Word has length 85 [2022-11-03 04:17:01,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:17:01,673 INFO L495 AbstractCegarLoop]: Abstraction has 7843 states and 11624 transitions. [2022-11-03 04:17:01,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 04:17:01,673 INFO L276 IsEmpty]: Start isEmpty. Operand 7843 states and 11624 transitions. [2022-11-03 04:17:01,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-11-03 04:17:01,684 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:17:01,685 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:17:01,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 04:17:01,685 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:17:01,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:17:01,686 INFO L85 PathProgramCache]: Analyzing trace with hash 39750751, now seen corresponding path program 1 times [2022-11-03 04:17:01,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:17:01,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218455530] [2022-11-03 04:17:01,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:17:01,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:17:02,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:17:02,778 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-11-03 04:17:02,779 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:17:02,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218455530] [2022-11-03 04:17:02,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218455530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:17:02,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:17:02,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:17:02,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326226125] [2022-11-03 04:17:02,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:17:02,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:17:02,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:17:02,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:17:02,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:17:02,782 INFO L87 Difference]: Start difference. First operand 7843 states and 11624 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 04:17:05,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:17:08,576 WARN L539 Checker$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 04:17:11,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:17:14,936 WARN L539 Checker$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 04:17:16,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:17:16,679 INFO L93 Difference]: Finished difference Result 23111 states and 34318 transitions. [2022-11-03 04:17:16,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:17:16,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 151 [2022-11-03 04:17:16,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:17:16,737 INFO L225 Difference]: With dead ends: 23111 [2022-11-03 04:17:16,737 INFO L226 Difference]: Without dead ends: 15292 [2022-11-03 04:17:16,765 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 04:17:16,766 INFO L413 NwaCegarLoop]: 6276 mSDtfsCounter, 5556 mSDsluCounter, 5846 mSDsCounter, 0 mSdLazyCounter, 1507 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5565 SdHoareTripleChecker+Valid, 11386 SdHoareTripleChecker+Invalid, 1512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1507 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:17:16,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5565 Valid, 11386 Invalid, 1512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1507 Invalid, 4 Unknown, 0 Unchecked, 13.1s Time] [2022-11-03 04:17:16,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15292 states. [2022-11-03 04:17:17,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15292 to 15287. [2022-11-03 04:17:17,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15287 states, 10151 states have (on average 1.365678258299675) internal successors, (13863), 10449 states have internal predecessors, (13863), 4409 states have call successors, (4409), 726 states have call predecessors, (4409), 726 states have return successors, (4442), 4329 states have call predecessors, (4442), 4408 states have call successors, (4442) [2022-11-03 04:17:18,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15287 states to 15287 states and 22714 transitions. [2022-11-03 04:17:18,022 INFO L78 Accepts]: Start accepts. Automaton has 15287 states and 22714 transitions. Word has length 151 [2022-11-03 04:17:18,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:17:18,023 INFO L495 AbstractCegarLoop]: Abstraction has 15287 states and 22714 transitions. [2022-11-03 04:17:18,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 04:17:18,023 INFO L276 IsEmpty]: Start isEmpty. Operand 15287 states and 22714 transitions. [2022-11-03 04:17:18,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-11-03 04:17:18,034 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:17:18,034 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:17:18,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 04:17:18,035 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:17:18,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:17:18,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1800528405, now seen corresponding path program 1 times [2022-11-03 04:17:18,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:17:18,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863448714] [2022-11-03 04:17:18,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:17:18,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:17:18,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:17:19,429 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-11-03 04:17:19,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:17:19,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863448714] [2022-11-03 04:17:19,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863448714] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:17:19,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:17:19,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:17:19,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472715599] [2022-11-03 04:17:19,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:17:19,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:17:19,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:17:19,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:17:19,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:17:19,431 INFO L87 Difference]: Start difference. First operand 15287 states and 22714 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-03 04:17:20,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:17:23,999 WARN L539 Checker$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 04:17:26,259 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 04:17:27,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:17:27,812 INFO L93 Difference]: Finished difference Result 30389 states and 45132 transitions. [2022-11-03 04:17:27,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:17:27,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 166 [2022-11-03 04:17:27,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:17:27,863 INFO L225 Difference]: With dead ends: 30389 [2022-11-03 04:17:27,863 INFO L226 Difference]: Without dead ends: 15126 [2022-11-03 04:17:27,903 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 04:17:27,903 INFO L413 NwaCegarLoop]: 5119 mSDtfsCounter, 5674 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5683 SdHoareTripleChecker+Valid, 5293 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:17:27,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5683 Valid, 5293 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 790 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2022-11-03 04:17:27,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15126 states. [2022-11-03 04:17:28,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15126 to 15123. [2022-11-03 04:17:28,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15123 states, 10031 states have (on average 1.3632738510617086) internal successors, (13675), 10329 states have internal predecessors, (13675), 4365 states have call successors, (4365), 726 states have call predecessors, (4365), 726 states have return successors, (4398), 4285 states have call predecessors, (4398), 4364 states have call successors, (4398) [2022-11-03 04:17:29,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15123 states to 15123 states and 22438 transitions. [2022-11-03 04:17:29,048 INFO L78 Accepts]: Start accepts. Automaton has 15123 states and 22438 transitions. Word has length 166 [2022-11-03 04:17:29,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:17:29,048 INFO L495 AbstractCegarLoop]: Abstraction has 15123 states and 22438 transitions. [2022-11-03 04:17:29,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-03 04:17:29,049 INFO L276 IsEmpty]: Start isEmpty. Operand 15123 states and 22438 transitions. [2022-11-03 04:17:29,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-11-03 04:17:29,060 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:17:29,060 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 04:17:29,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 04:17:29,060 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:17:29,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:17:29,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1186763201, now seen corresponding path program 1 times [2022-11-03 04:17:29,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:17:29,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602315288] [2022-11-03 04:17:29,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:17:29,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:17:29,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:17:30,376 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-03 04:17:30,377 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:17:30,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602315288] [2022-11-03 04:17:30,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602315288] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:17:30,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:17:30,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:17:30,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234886033] [2022-11-03 04:17:30,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:17:30,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:17:30,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:17:30,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:17:30,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:17:30,379 INFO L87 Difference]: Start difference. First operand 15123 states and 22438 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 04:17:32,642 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 04:17:37,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:17:40,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:17:42,124 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 04:17:44,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:17:44,991 INFO L93 Difference]: Finished difference Result 44591 states and 66440 transitions. [2022-11-03 04:17:44,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:17:44,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 137 [2022-11-03 04:17:44,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:17:45,108 INFO L225 Difference]: With dead ends: 44591 [2022-11-03 04:17:45,109 INFO L226 Difference]: Without dead ends: 29492 [2022-11-03 04:17:45,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:17:45,160 INFO L413 NwaCegarLoop]: 7769 mSDtfsCounter, 5525 mSDsluCounter, 5746 mSDsCounter, 0 mSdLazyCounter, 1841 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5525 SdHoareTripleChecker+Valid, 12788 SdHoareTripleChecker+Invalid, 1852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1841 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:17:45,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5525 Valid, 12788 Invalid, 1852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1841 Invalid, 3 Unknown, 0 Unchecked, 13.2s Time] [2022-11-03 04:17:45,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29492 states. [2022-11-03 04:17:47,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29492 to 29352. [2022-11-03 04:17:47,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29352 states, 19485 states have (on average 1.3642802155504234) internal successors, (26583), 20090 states have internal predecessors, (26583), 8478 states have call successors, (8478), 1386 states have call predecessors, (8478), 1388 states have return successors, (8812), 8308 states have call predecessors, (8812), 8477 states have call successors, (8812) [2022-11-03 04:17:47,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29352 states to 29352 states and 43873 transitions. [2022-11-03 04:17:47,679 INFO L78 Accepts]: Start accepts. Automaton has 29352 states and 43873 transitions. Word has length 137 [2022-11-03 04:17:47,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:17:47,680 INFO L495 AbstractCegarLoop]: Abstraction has 29352 states and 43873 transitions. [2022-11-03 04:17:47,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 04:17:47,680 INFO L276 IsEmpty]: Start isEmpty. Operand 29352 states and 43873 transitions. [2022-11-03 04:17:47,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2022-11-03 04:17:47,691 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:17:47,691 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:17:47,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 04:17:47,691 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:17:47,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:17:47,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1242522390, now seen corresponding path program 1 times [2022-11-03 04:17:47,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:17:47,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26845525] [2022-11-03 04:17:47,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:17:47,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:17:48,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:17:49,013 INFO L134 CoverageAnalysis]: Checked inductivity of 1225 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2022-11-03 04:17:49,014 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:17:49,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26845525] [2022-11-03 04:17:49,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26845525] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:17:49,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:17:49,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:17:49,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125943871] [2022-11-03 04:17:49,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:17:49,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:17:49,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:17:49,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:17:49,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:17:49,017 INFO L87 Difference]: Start difference. First operand 29352 states and 43873 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-03 04:17:51,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:17:54,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:18:00,263 WARN L539 Checker$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 04:18:02,351 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 04:18:05,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:18:05,957 INFO L93 Difference]: Finished difference Result 80698 states and 120667 transitions. [2022-11-03 04:18:05,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:18:05,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 305 [2022-11-03 04:18:05,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:18:06,109 INFO L225 Difference]: With dead ends: 80698 [2022-11-03 04:18:06,110 INFO L226 Difference]: Without dead ends: 51370 [2022-11-03 04:18:06,191 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 04:18:06,192 INFO L413 NwaCegarLoop]: 7969 mSDtfsCounter, 4314 mSDsluCounter, 5691 mSDsCounter, 0 mSdLazyCounter, 1985 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4323 SdHoareTripleChecker+Valid, 12927 SdHoareTripleChecker+Invalid, 1990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1985 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:18:06,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4323 Valid, 12927 Invalid, 1990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1985 Invalid, 4 Unknown, 0 Unchecked, 14.3s Time] [2022-11-03 04:18:06,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51370 states. [2022-11-03 04:18:09,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51370 to 51364. [2022-11-03 04:18:09,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51364 states, 34077 states have (on average 1.3667576371159433) internal successors, (46575), 35230 states have internal predecessors, (46575), 14782 states have call successors, (14782), 2502 states have call predecessors, (14782), 2504 states have return successors, (15450), 14440 states have call predecessors, (15450), 14781 states have call successors, (15450) [2022-11-03 04:18:09,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51364 states to 51364 states and 76807 transitions. [2022-11-03 04:18:09,663 INFO L78 Accepts]: Start accepts. Automaton has 51364 states and 76807 transitions. Word has length 305 [2022-11-03 04:18:09,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:18:09,663 INFO L495 AbstractCegarLoop]: Abstraction has 51364 states and 76807 transitions. [2022-11-03 04:18:09,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-03 04:18:09,664 INFO L276 IsEmpty]: Start isEmpty. Operand 51364 states and 76807 transitions. [2022-11-03 04:18:09,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2022-11-03 04:18:09,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:18:09,680 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:18:09,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 04:18:09,680 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:18:09,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:18:09,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1514094556, now seen corresponding path program 1 times [2022-11-03 04:18:09,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:18:09,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754633285] [2022-11-03 04:18:09,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:18:09,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:18:10,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:18:11,640 INFO L134 CoverageAnalysis]: Checked inductivity of 4371 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4371 trivial. 0 not checked. [2022-11-03 04:18:11,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:18:11,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754633285] [2022-11-03 04:18:11,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754633285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:18:11,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:18:11,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:18:11,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743455392] [2022-11-03 04:18:11,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:18:11,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:18:11,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:18:11,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:18:11,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:18:11,644 INFO L87 Difference]: Start difference. First operand 51364 states and 76807 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-03 04:18:13,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:18:16,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:18:19,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:18:22,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:18:22,545 INFO L93 Difference]: Finished difference Result 59714 states and 88468 transitions. [2022-11-03 04:18:22,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:18:22,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 427 [2022-11-03 04:18:22,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:18:22,730 INFO L225 Difference]: With dead ends: 59714 [2022-11-03 04:18:22,730 INFO L226 Difference]: Without dead ends: 59711 [2022-11-03 04:18:22,750 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 04:18:22,750 INFO L413 NwaCegarLoop]: 5577 mSDtfsCounter, 5200 mSDsluCounter, 1398 mSDsCounter, 0 mSdLazyCounter, 1017 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5202 SdHoareTripleChecker+Valid, 6771 SdHoareTripleChecker+Invalid, 1019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1017 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:18:22,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5202 Valid, 6771 Invalid, 1019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1017 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2022-11-03 04:18:22,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59711 states. [2022-11-03 04:18:26,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59711 to 59519. [2022-11-03 04:18:26,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59519 states, 39191 states have (on average 1.3603123166033018) internal successors, (53312), 40640 states have internal predecessors, (53312), 16902 states have call successors, (16902), 3406 states have call predecessors, (16902), 3425 states have return successors, (17939), 16521 states have call predecessors, (17939), 16901 states have call successors, (17939) [2022-11-03 04:18:27,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59519 states to 59519 states and 88153 transitions. [2022-11-03 04:18:27,227 INFO L78 Accepts]: Start accepts. Automaton has 59519 states and 88153 transitions. Word has length 427 [2022-11-03 04:18:27,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:18:27,247 INFO L495 AbstractCegarLoop]: Abstraction has 59519 states and 88153 transitions. [2022-11-03 04:18:27,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-03 04:18:27,248 INFO L276 IsEmpty]: Start isEmpty. Operand 59519 states and 88153 transitions. [2022-11-03 04:18:27,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 590 [2022-11-03 04:18:27,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:18:27,357 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 31, 31, 31, 31, 31, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:18:27,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 04:18:27,357 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:18:27,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:18:27,358 INFO L85 PathProgramCache]: Analyzing trace with hash 2061240744, now seen corresponding path program 1 times [2022-11-03 04:18:27,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:18:27,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572165929] [2022-11-03 04:18:27,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:18:27,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:18:28,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:18:29,688 INFO L134 CoverageAnalysis]: Checked inductivity of 4716 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2022-11-03 04:18:29,689 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:18:29,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572165929] [2022-11-03 04:18:29,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572165929] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:18:29,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:18:29,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:18:29,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902576009] [2022-11-03 04:18:29,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:18:29,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:18:29,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:18:29,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:18:29,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:18:29,693 INFO L87 Difference]: Start difference. First operand 59519 states and 88153 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 3 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-03 04:18:31,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:18:33,184 WARN L539 Checker$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 04:18:36,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:18:41,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:18:47,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:18:47,802 INFO L93 Difference]: Finished difference Result 144816 states and 214792 transitions. [2022-11-03 04:18:47,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:18:47,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 3 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 589 [2022-11-03 04:18:47,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:18:48,107 INFO L225 Difference]: With dead ends: 144816 [2022-11-03 04:18:48,108 INFO L226 Difference]: Without dead ends: 85321 [2022-11-03 04:18:48,402 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 04:18:48,402 INFO L413 NwaCegarLoop]: 9798 mSDtfsCounter, 5594 mSDsluCounter, 5691 mSDsCounter, 0 mSdLazyCounter, 2202 mSolverCounterSat, 22 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5594 SdHoareTripleChecker+Valid, 14777 SdHoareTripleChecker+Invalid, 2226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2202 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:18:48,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5594 Valid, 14777 Invalid, 2226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2202 Invalid, 2 Unknown, 0 Unchecked, 13.7s Time] [2022-11-03 04:18:48,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85321 states.