./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c44e266-d824-4d7b-800c-ab5cf7d02b10/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c44e266-d824-4d7b-800c-ab5cf7d02b10/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c44e266-d824-4d7b-800c-ab5cf7d02b10/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c44e266-d824-4d7b-800c-ab5cf7d02b10/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c44e266-d824-4d7b-800c-ab5cf7d02b10/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c44e266-d824-4d7b-800c-ab5cf7d02b10/bin/utaipan-eEHZpOm5b7 --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 817bea8ab76945a5848f42772e9b8e947c5db1a5578e423e156f0a053a32f550 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:16:51,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:16:51,152 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:16:51,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:16:51,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:16:51,191 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:16:51,193 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:16:51,195 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:16:51,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:16:51,199 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:16:51,200 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:16:51,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:16:51,202 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:16:51,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:16:51,205 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:16:51,207 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:16:51,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:16:51,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:16:51,211 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:16:51,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:16:51,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:16:51,217 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:16:51,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:16:51,219 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:16:51,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:16:51,223 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:16:51,224 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:16:51,224 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:16:51,225 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:16:51,226 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:16:51,227 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:16:51,228 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:16:51,228 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:16:51,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:16:51,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:16:51,231 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:16:51,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:16:51,232 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:16:51,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:16:51,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:16:51,234 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:16:51,235 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c44e266-d824-4d7b-800c-ab5cf7d02b10/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 20:16:51,276 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:16:51,283 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:16:51,284 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:16:51,285 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:16:51,288 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:16:51,289 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:16:51,289 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:16:51,290 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:16:51,290 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:16:51,290 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:16:51,291 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:16:51,291 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:16:51,292 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:16:51,292 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:16:51,292 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:16:51,292 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:16:51,293 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:16:51,293 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:16:51,293 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:16:51,294 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:16:51,295 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:16:51,296 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:16:51,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:16:51,297 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:16:51,297 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:16:51,297 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:16:51,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:16:51,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:16:51,300 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:16:51,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:16:51,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:16:51,301 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:16:51,301 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:16:51,301 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:16:51,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:16:51,302 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:16:51,302 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:16:51,302 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:16:51,302 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_6c44e266-d824-4d7b-800c-ab5cf7d02b10/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c44e266-d824-4d7b-800c-ab5cf7d02b10/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 817bea8ab76945a5848f42772e9b8e947c5db1a5578e423e156f0a053a32f550 [2021-11-25 20:16:51,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:16:51,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:16:51,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:16:51,599 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:16:51,600 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:16:51,601 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c44e266-d824-4d7b-800c-ab5cf7d02b10/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i [2021-11-25 20:16:51,663 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c44e266-d824-4d7b-800c-ab5cf7d02b10/bin/utaipan-eEHZpOm5b7/data/b891cc63c/8d9c1720a6704b09994af905c12aa1b8/FLAG936aaef7c [2021-11-25 20:16:52,743 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:16:52,744 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c44e266-d824-4d7b-800c-ab5cf7d02b10/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i [2021-11-25 20:16:52,829 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c44e266-d824-4d7b-800c-ab5cf7d02b10/bin/utaipan-eEHZpOm5b7/data/b891cc63c/8d9c1720a6704b09994af905c12aa1b8/FLAG936aaef7c [2021-11-25 20:16:52,958 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c44e266-d824-4d7b-800c-ab5cf7d02b10/bin/utaipan-eEHZpOm5b7/data/b891cc63c/8d9c1720a6704b09994af905c12aa1b8 [2021-11-25 20:16:52,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:16:52,966 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:16:52,967 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:16:52,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:16:52,971 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:16:52,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:16:52" (1/1) ... [2021-11-25 20:16:52,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fe3484f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:16:52, skipping insertion in model container [2021-11-25 20:16:52,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:16:52" (1/1) ... [2021-11-25 20:16:52,987 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:16:53,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:17:00,410 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_6c44e266-d824-4d7b-800c-ab5cf7d02b10/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i[649077,649090] [2021-11-25 20:17:00,412 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_6c44e266-d824-4d7b-800c-ab5cf7d02b10/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i[649246,649259] [2021-11-25 20:17:00,413 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_6c44e266-d824-4d7b-800c-ab5cf7d02b10/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i[649413,649426] [2021-11-25 20:17:00,414 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_6c44e266-d824-4d7b-800c-ab5cf7d02b10/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i[649581,649594] [2021-11-25 20:17:00,447 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:17:00,494 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:17:01,229 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_6c44e266-d824-4d7b-800c-ab5cf7d02b10/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i[649077,649090] [2021-11-25 20:17:01,230 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_6c44e266-d824-4d7b-800c-ab5cf7d02b10/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i[649246,649259] [2021-11-25 20:17:01,230 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_6c44e266-d824-4d7b-800c-ab5cf7d02b10/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i[649413,649426] [2021-11-25 20:17:01,231 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_6c44e266-d824-4d7b-800c-ab5cf7d02b10/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i[649581,649594] [2021-11-25 20:17:01,242 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:17:01,673 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:17:01,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:17:01 WrapperNode [2021-11-25 20:17:01,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:17:01,675 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:17:01,675 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:17:01,676 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:17:01,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:17:01" (1/1) ... [2021-11-25 20:17:01,912 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:17:01" (1/1) ... [2021-11-25 20:17:02,340 INFO L137 Inliner]: procedures = 732, calls = 6977, calls flagged for inlining = 351, calls inlined = 332, statements flattened = 14608 [2021-11-25 20:17:02,341 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:17:02,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:17:02,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:17:02,343 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:17:02,354 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:17:01" (1/1) ... [2021-11-25 20:17:02,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:17:01" (1/1) ... [2021-11-25 20:17:02,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:17:01" (1/1) ... [2021-11-25 20:17:02,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:17:01" (1/1) ... [2021-11-25 20:17:02,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:17:01" (1/1) ... [2021-11-25 20:17:03,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:17:01" (1/1) ... [2021-11-25 20:17:03,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:17:01" (1/1) ... [2021-11-25 20:17:03,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:17:03,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:17:03,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:17:03,199 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:17:03,200 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:17:01" (1/1) ... [2021-11-25 20:17:03,207 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:17:03,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c44e266-d824-4d7b-800c-ab5cf7d02b10/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:17:03,232 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c44e266-d824-4d7b-800c-ab5cf7d02b10/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:17:03,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c44e266-d824-4d7b-800c-ab5cf7d02b10/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:17:03,285 INFO L130 BoogieDeclarations]: Found specification of procedure PC4500_writerid [2021-11-25 20:17:03,285 INFO L138 BoogieDeclarations]: Found implementation of procedure PC4500_writerid [2021-11-25 20:17:03,285 INFO L130 BoogieDeclarations]: Found specification of procedure reset_card [2021-11-25 20:17:03,285 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_card [2021-11-25 20:17:03,285 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-25 20:17:03,286 INFO L130 BoogieDeclarations]: Found specification of procedure readStatusRid [2021-11-25 20:17:03,286 INFO L138 BoogieDeclarations]: Found implementation of procedure readStatusRid [2021-11-25 20:17:03,286 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-25 20:17:03,286 INFO L130 BoogieDeclarations]: Found specification of procedure reset_airo_card [2021-11-25 20:17:03,286 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_airo_card [2021-11-25 20:17:03,287 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2021-11-25 20:17:03,287 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2021-11-25 20:17:03,287 INFO L130 BoogieDeclarations]: Found specification of procedure crypto_cipher_crt [2021-11-25 20:17:03,287 INFO L138 BoogieDeclarations]: Found implementation of procedure crypto_cipher_crt [2021-11-25 20:17:03,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 20:17:03,288 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 20:17:03,288 INFO L130 BoogieDeclarations]: Found specification of procedure wifi_setup [2021-11-25 20:17:03,288 INFO L138 BoogieDeclarations]: Found implementation of procedure wifi_setup [2021-11-25 20:17:03,288 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-25 20:17:03,288 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-25 20:17:03,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 20:17:03,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 20:17:03,289 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_spy_update [2021-11-25 20:17:03,289 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_spy_update [2021-11-25 20:17:03,289 INFO L130 BoogieDeclarations]: Found specification of procedure age_mic_context [2021-11-25 20:17:03,290 INFO L138 BoogieDeclarations]: Found implementation of procedure age_mic_context [2021-11-25 20:17:03,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 20:17:03,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 20:17:03,290 INFO L130 BoogieDeclarations]: Found specification of procedure setup_card [2021-11-25 20:17:03,291 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_card [2021-11-25 20:17:03,291 INFO L130 BoogieDeclarations]: Found specification of procedure airo_networks_free [2021-11-25 20:17:03,291 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_networks_free [2021-11-25 20:17:03,292 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_should_stop [2021-11-25 20:17:03,292 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_should_stop [2021-11-25 20:17:03,292 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2021-11-25 20:17:03,292 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2021-11-25 20:17:03,293 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-25 20:17:03,293 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-25 20:17:03,293 INFO L130 BoogieDeclarations]: Found specification of procedure airo_close [2021-11-25 20:17:03,293 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_close [2021-11-25 20:17:03,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_62 [2021-11-25 20:17:03,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_62 [2021-11-25 20:17:03,294 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_error [2021-11-25 20:17:03,295 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_error [2021-11-25 20:17:03,295 INFO L130 BoogieDeclarations]: Found specification of procedure sniffing_mode [2021-11-25 20:17:03,295 INFO L138 BoogieDeclarations]: Found implementation of procedure sniffing_mode [2021-11-25 20:17:03,296 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 20:17:03,296 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 20:17:03,296 INFO L130 BoogieDeclarations]: Found specification of procedure header_len [2021-11-25 20:17:03,296 INFO L138 BoogieDeclarations]: Found implementation of procedure header_len [2021-11-25 20:17:03,296 INFO L130 BoogieDeclarations]: Found specification of procedure ssleep [2021-11-25 20:17:03,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ssleep [2021-11-25 20:17:03,297 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2021-11-25 20:17:03,297 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2021-11-25 20:17:03,297 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2021-11-25 20:17:03,298 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2021-11-25 20:17:03,298 INFO L130 BoogieDeclarations]: Found specification of procedure readSsidRid [2021-11-25 20:17:03,298 INFO L138 BoogieDeclarations]: Found implementation of procedure readSsidRid [2021-11-25 20:17:03,298 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-25 20:17:03,298 INFO L130 BoogieDeclarations]: Found specification of procedure emmh32_final [2021-11-25 20:17:03,298 INFO L138 BoogieDeclarations]: Found implementation of procedure emmh32_final [2021-11-25 20:17:03,299 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-25 20:17:03,299 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-25 20:17:03,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 20:17:03,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 20:17:03,299 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2021-11-25 20:17:03,300 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2021-11-25 20:17:03,300 INFO L130 BoogieDeclarations]: Found specification of procedure down_trylock [2021-11-25 20:17:03,300 INFO L138 BoogieDeclarations]: Found implementation of procedure down_trylock [2021-11-25 20:17:03,300 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-11-25 20:17:03,300 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-11-25 20:17:03,300 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-25 20:17:03,301 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-25 20:17:03,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 20:17:03,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 20:17:03,301 INFO L130 BoogieDeclarations]: Found specification of procedure enable_MAC [2021-11-25 20:17:03,302 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_MAC [2021-11-25 20:17:03,302 INFO L130 BoogieDeclarations]: Found specification of procedure OUT4500 [2021-11-25 20:17:03,302 INFO L138 BoogieDeclarations]: Found implementation of procedure OUT4500 [2021-11-25 20:17:03,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:17:03,303 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-25 20:17:03,303 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-25 20:17:03,304 INFO L130 BoogieDeclarations]: Found specification of procedure mpi_send_packet [2021-11-25 20:17:03,304 INFO L138 BoogieDeclarations]: Found implementation of procedure mpi_send_packet [2021-11-25 20:17:03,304 INFO L130 BoogieDeclarations]: Found specification of procedure PDE_DATA [2021-11-25 20:17:03,304 INFO L138 BoogieDeclarations]: Found implementation of procedure PDE_DATA [2021-11-25 20:17:03,305 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-25 20:17:03,306 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-25 20:17:03,306 INFO L130 BoogieDeclarations]: Found specification of procedure airo_ioctl [2021-11-25 20:17:03,306 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_ioctl [2021-11-25 20:17:03,306 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-25 20:17:03,306 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-25 20:17:03,306 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-25 20:17:03,307 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-25 20:17:03,307 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 20:17:03,307 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 20:17:03,307 INFO L130 BoogieDeclarations]: Found specification of procedure airo_end_xmit11 [2021-11-25 20:17:03,307 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_end_xmit11 [2021-11-25 20:17:03,307 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-11-25 20:17:03,308 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-11-25 20:17:03,308 INFO L130 BoogieDeclarations]: Found specification of procedure airo_change_mtu [2021-11-25 20:17:03,308 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_change_mtu [2021-11-25 20:17:03,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 20:17:03,309 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-25 20:17:03,309 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-25 20:17:03,310 INFO L130 BoogieDeclarations]: Found specification of procedure disable_interrupts [2021-11-25 20:17:03,312 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_interrupts [2021-11-25 20:17:03,313 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 20:17:03,314 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 20:17:03,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-25 20:17:03,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-25 20:17:03,315 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-25 20:17:03,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-25 20:17:03,316 INFO L130 BoogieDeclarations]: Found specification of procedure down_interruptible [2021-11-25 20:17:03,316 INFO L138 BoogieDeclarations]: Found implementation of procedure down_interruptible [2021-11-25 20:17:03,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 20:17:03,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 20:17:03,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 20:17:03,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:17:03,324 INFO L130 BoogieDeclarations]: Found specification of procedure airo_pci_remove [2021-11-25 20:17:03,324 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_pci_remove [2021-11-25 20:17:03,324 INFO L130 BoogieDeclarations]: Found specification of procedure aux_setup [2021-11-25 20:17:03,325 INFO L138 BoogieDeclarations]: Found implementation of procedure aux_setup [2021-11-25 20:17:03,325 INFO L130 BoogieDeclarations]: Found specification of procedure writeConfigRid [2021-11-25 20:17:03,325 INFO L138 BoogieDeclarations]: Found implementation of procedure writeConfigRid [2021-11-25 20:17:03,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 20:17:03,325 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 20:17:03,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-25 20:17:03,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-25 20:17:03,326 INFO L130 BoogieDeclarations]: Found specification of procedure readCapabilityRid [2021-11-25 20:17:03,326 INFO L138 BoogieDeclarations]: Found implementation of procedure readCapabilityRid [2021-11-25 20:17:03,326 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2021-11-25 20:17:03,326 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2021-11-25 20:17:03,326 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2021-11-25 20:17:03,326 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2021-11-25 20:17:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 20:17:03,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 20:17:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_netdev_mqs [2021-11-25 20:17:03,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_netdev_mqs [2021-11-25 20:17:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-25 20:17:03,327 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-25 20:17:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-25 20:17:03,328 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-25 20:17:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-25 20:17:03,328 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-25 20:17:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-25 20:17:03,328 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-25 20:17:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-25 20:17:03,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-25 20:17:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure writeWepKeyRid [2021-11-25 20:17:03,329 INFO L138 BoogieDeclarations]: Found implementation of procedure writeWepKeyRid [2021-11-25 20:17:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure proc_create_data [2021-11-25 20:17:03,329 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_create_data [2021-11-25 20:17:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:17:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-25 20:17:03,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-25 20:17:03,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-25 20:17:03,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-25 20:17:03,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-25 20:17:03,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-25 20:17:03,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2021-11-25 20:17:03,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2021-11-25 20:17:03,332 INFO L130 BoogieDeclarations]: Found specification of procedure del_airo_dev [2021-11-25 20:17:03,332 INFO L138 BoogieDeclarations]: Found implementation of procedure del_airo_dev [2021-11-25 20:17:03,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:17:03,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 20:17:03,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 20:17:03,332 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 20:17:03,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 20:17:03,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:17:03,333 INFO L130 BoogieDeclarations]: Found specification of procedure writeSsidRid [2021-11-25 20:17:03,333 INFO L138 BoogieDeclarations]: Found implementation of procedure writeSsidRid [2021-11-25 20:17:03,333 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 20:17:03,333 INFO L130 BoogieDeclarations]: Found specification of procedure MoveWindow [2021-11-25 20:17:03,334 INFO L138 BoogieDeclarations]: Found implementation of procedure MoveWindow [2021-11-25 20:17:03,334 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_stop [2021-11-25 20:17:03,334 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_stop [2021-11-25 20:17:03,334 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 20:17:03,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 20:17:03,334 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-25 20:17:03,334 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-25 20:17:03,335 INFO L130 BoogieDeclarations]: Found specification of procedure crypto_cipher_tfm [2021-11-25 20:17:03,335 INFO L138 BoogieDeclarations]: Found implementation of procedure crypto_cipher_tfm [2021-11-25 20:17:03,335 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2021-11-25 20:17:03,335 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2021-11-25 20:17:03,335 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-25 20:17:03,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-25 20:17:03,336 INFO L130 BoogieDeclarations]: Found specification of procedure proc_close [2021-11-25 20:17:03,336 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_close [2021-11-25 20:17:03,336 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 20:17:03,336 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 20:17:03,336 INFO L130 BoogieDeclarations]: Found specification of procedure airo_set_multicast_list [2021-11-25 20:17:03,336 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_set_multicast_list [2021-11-25 20:17:03,337 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-25 20:17:03,337 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-25 20:17:03,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-25 20:17:03,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-25 20:17:03,337 INFO L130 BoogieDeclarations]: Found specification of procedure set_wep_key [2021-11-25 20:17:03,337 INFO L138 BoogieDeclarations]: Found implementation of procedure set_wep_key [2021-11-25 20:17:03,338 INFO L130 BoogieDeclarations]: Found specification of procedure writeAPListRid [2021-11-25 20:17:03,338 INFO L138 BoogieDeclarations]: Found implementation of procedure writeAPListRid [2021-11-25 20:17:03,338 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-25 20:17:03,338 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-25 20:17:03,338 INFO L130 BoogieDeclarations]: Found specification of procedure freezing [2021-11-25 20:17:03,338 INFO L138 BoogieDeclarations]: Found implementation of procedure freezing [2021-11-25 20:17:03,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:17:03,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:17:03,339 INFO L130 BoogieDeclarations]: Found specification of procedure proc_stats_rid_open [2021-11-25 20:17:03,339 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_stats_rid_open [2021-11-25 20:17:03,339 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-25 20:17:03,339 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-25 20:17:03,339 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_send_event [2021-11-25 20:17:03,340 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_send_event [2021-11-25 20:17:03,340 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-25 20:17:03,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-25 20:17:03,340 INFO L130 BoogieDeclarations]: Found specification of procedure insb [2021-11-25 20:17:03,340 INFO L138 BoogieDeclarations]: Found implementation of procedure insb [2021-11-25 20:17:03,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-25 20:17:03,341 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-25 20:17:03,341 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-25 20:17:03,341 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-25 20:17:03,341 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2021-11-25 20:17:03,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2021-11-25 20:17:03,341 INFO L130 BoogieDeclarations]: Found specification of procedure IN4500 [2021-11-25 20:17:03,342 INFO L138 BoogieDeclarations]: Found implementation of procedure IN4500 [2021-11-25 20:17:03,342 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2021-11-25 20:17:03,342 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2021-11-25 20:17:03,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 20:17:03,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 20:17:03,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 20:17:03,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 20:17:03,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_aux_lock_of_airo_info [2021-11-25 20:17:03,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_aux_lock_of_airo_info [2021-11-25 20:17:03,348 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2021-11-25 20:17:03,348 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2021-11-25 20:17:03,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 20:17:03,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 20:17:03,349 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-25 20:17:03,349 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-25 20:17:03,349 INFO L130 BoogieDeclarations]: Found specification of procedure bap_write [2021-11-25 20:17:03,349 INFO L138 BoogieDeclarations]: Found implementation of procedure bap_write [2021-11-25 20:17:03,349 INFO L130 BoogieDeclarations]: Found specification of procedure _init_airo_card [2021-11-25 20:17:03,350 INFO L138 BoogieDeclarations]: Found implementation of procedure _init_airo_card [2021-11-25 20:17:03,350 INFO L130 BoogieDeclarations]: Found specification of procedure waitbusy [2021-11-25 20:17:03,351 INFO L138 BoogieDeclarations]: Found implementation of procedure waitbusy [2021-11-25 20:17:03,351 INFO L130 BoogieDeclarations]: Found specification of procedure decapsulate [2021-11-25 20:17:03,351 INFO L138 BoogieDeclarations]: Found implementation of procedure decapsulate [2021-11-25 20:17:03,351 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2021-11-25 20:17:03,351 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2021-11-25 20:17:03,352 INFO L130 BoogieDeclarations]: Found specification of procedure proc_mkdir_mode [2021-11-25 20:17:03,352 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_mkdir_mode [2021-11-25 20:17:03,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 20:17:03,352 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 20:17:03,352 INFO L130 BoogieDeclarations]: Found specification of procedure readBSSListRid [2021-11-25 20:17:03,352 INFO L138 BoogieDeclarations]: Found implementation of procedure readBSSListRid [2021-11-25 20:17:03,353 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-25 20:17:03,353 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-25 20:17:03,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_airo_cleanup_module_23_2 [2021-11-25 20:17:03,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_airo_cleanup_module_23_2 [2021-11-25 20:17:03,353 INFO L130 BoogieDeclarations]: Found specification of procedure insw [2021-11-25 20:17:03,353 INFO L138 BoogieDeclarations]: Found implementation of procedure insw [2021-11-25 20:17:03,354 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-11-25 20:17:03,354 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-11-25 20:17:03,354 INFO L130 BoogieDeclarations]: Found specification of procedure set_wep_tx_idx [2021-11-25 20:17:03,354 INFO L138 BoogieDeclarations]: Found implementation of procedure set_wep_tx_idx [2021-11-25 20:17:03,354 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-25 20:17:03,354 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-25 20:17:03,355 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-25 20:17:03,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-25 20:17:03,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:17:03,355 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-25 20:17:03,355 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-25 20:17:03,356 INFO L130 BoogieDeclarations]: Found specification of procedure proc_write [2021-11-25 20:17:03,356 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_write [2021-11-25 20:17:03,356 INFO L130 BoogieDeclarations]: Found specification of procedure up [2021-11-25 20:17:03,356 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2021-11-25 20:17:03,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:17:03,356 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2021-11-25 20:17:03,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2021-11-25 20:17:03,357 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_subtree [2021-11-25 20:17:03,357 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_subtree [2021-11-25 20:17:03,357 INFO L130 BoogieDeclarations]: Found specification of procedure transmit_allocate [2021-11-25 20:17:03,357 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit_allocate [2021-11-25 20:17:03,357 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-25 20:17:03,358 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-25 20:17:03,358 INFO L130 BoogieDeclarations]: Found specification of procedure proc_read [2021-11-25 20:17:03,358 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_read [2021-11-25 20:17:03,358 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-25 20:17:03,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-25 20:17:03,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 20:17:03,359 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-25 20:17:03,359 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-25 20:17:03,359 INFO L130 BoogieDeclarations]: Found specification of procedure PC4500_accessrid [2021-11-25 20:17:03,359 INFO L138 BoogieDeclarations]: Found implementation of procedure PC4500_accessrid [2021-11-25 20:17:03,359 INFO L130 BoogieDeclarations]: Found specification of procedure airo_send_event [2021-11-25 20:17:03,360 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_send_event [2021-11-25 20:17:03,360 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-25 20:17:03,360 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-25 20:17:03,360 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-25 20:17:03,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-25 20:17:03,360 INFO L130 BoogieDeclarations]: Found specification of procedure airo_pci_resume [2021-11-25 20:17:03,361 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_pci_resume [2021-11-25 20:17:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-25 20:17:03,361 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-25 20:17:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 20:17:03,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 20:17:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure hex_to_bin [2021-11-25 20:17:03,362 INFO L138 BoogieDeclarations]: Found implementation of procedure hex_to_bin [2021-11-25 20:17:03,362 INFO L130 BoogieDeclarations]: Found specification of procedure try_auto_wep [2021-11-25 20:17:03,362 INFO L138 BoogieDeclarations]: Found implementation of procedure try_auto_wep [2021-11-25 20:17:03,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-25 20:17:03,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-25 20:17:03,362 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-25 20:17:03,363 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-25 20:17:03,363 INFO L130 BoogieDeclarations]: Found specification of procedure bap_read [2021-11-25 20:17:03,363 INFO L138 BoogieDeclarations]: Found implementation of procedure bap_read [2021-11-25 20:17:03,363 INFO L130 BoogieDeclarations]: Found specification of procedure issuecommand [2021-11-25 20:17:03,363 INFO L138 BoogieDeclarations]: Found implementation of procedure issuecommand [2021-11-25 20:17:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-25 20:17:03,364 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-25 20:17:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure bap_setup [2021-11-25 20:17:03,364 INFO L138 BoogieDeclarations]: Found implementation of procedure bap_setup [2021-11-25 20:17:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure readAPListRid [2021-11-25 20:17:03,364 INFO L138 BoogieDeclarations]: Found implementation of procedure readAPListRid [2021-11-25 20:17:03,365 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-25 20:17:03,365 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-25 20:17:03,365 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-25 20:17:03,365 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-25 20:17:03,365 INFO L130 BoogieDeclarations]: Found specification of procedure airo_read_stats [2021-11-25 20:17:03,365 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_read_stats [2021-11-25 20:17:03,366 INFO L130 BoogieDeclarations]: Found specification of procedure airo_end_xmit [2021-11-25 20:17:03,366 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_end_xmit [2021-11-25 20:17:03,366 INFO L130 BoogieDeclarations]: Found specification of procedure readConfigRid [2021-11-25 20:17:03,366 INFO L138 BoogieDeclarations]: Found implementation of procedure readConfigRid [2021-11-25 20:17:03,366 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-25 20:17:03,367 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-25 20:17:03,367 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-25 20:17:03,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-25 20:17:03,367 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 20:17:03,367 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 20:17:03,367 INFO L130 BoogieDeclarations]: Found specification of procedure ether_setup [2021-11-25 20:17:03,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_setup [2021-11-25 20:17:03,368 INFO L130 BoogieDeclarations]: Found specification of procedure airo_open [2021-11-25 20:17:03,368 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_open [2021-11-25 20:17:03,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:17:03,368 INFO L130 BoogieDeclarations]: Found specification of procedure stop_airo_card [2021-11-25 20:17:03,368 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_airo_card [2021-11-25 20:17:03,369 INFO L130 BoogieDeclarations]: Found specification of procedure emmh32_update [2021-11-25 20:17:03,369 INFO L138 BoogieDeclarations]: Found implementation of procedure emmh32_update [2021-11-25 20:17:03,369 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-11-25 20:17:03,369 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-11-25 20:17:03,369 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-11-25 20:17:03,369 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-11-25 20:17:03,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 20:17:03,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 20:17:03,370 INFO L130 BoogieDeclarations]: Found specification of procedure readWepKeyRid [2021-11-25 20:17:03,370 INFO L138 BoogieDeclarations]: Found implementation of procedure readWepKeyRid [2021-11-25 20:17:03,370 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2021-11-25 20:17:03,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2021-11-25 20:17:03,371 INFO L130 BoogieDeclarations]: Found specification of procedure mpi_unmap_card [2021-11-25 20:17:03,371 INFO L138 BoogieDeclarations]: Found implementation of procedure mpi_unmap_card [2021-11-25 20:17:03,371 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-25 20:17:03,371 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-25 20:17:03,371 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-25 20:17:03,372 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-25 20:17:03,372 INFO L130 BoogieDeclarations]: Found specification of procedure proc_set_user [2021-11-25 20:17:03,372 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_set_user [2021-11-25 20:17:03,372 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-25 20:17:03,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-25 20:17:03,372 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2021-11-25 20:17:03,373 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2021-11-25 20:17:03,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 20:17:03,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 20:17:03,373 INFO L130 BoogieDeclarations]: Found specification of procedure airo_get_stats [2021-11-25 20:17:03,373 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_get_stats [2021-11-25 20:17:03,374 INFO L130 BoogieDeclarations]: Found specification of procedure PC4500_readrid [2021-11-25 20:17:03,374 INFO L138 BoogieDeclarations]: Found implementation of procedure PC4500_readrid [2021-11-25 20:17:03,374 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-25 20:17:03,374 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-25 20:17:03,374 INFO L130 BoogieDeclarations]: Found specification of procedure mpi_init_descriptors [2021-11-25 20:17:03,374 INFO L138 BoogieDeclarations]: Found implementation of procedure mpi_init_descriptors [2021-11-25 20:17:03,375 INFO L130 BoogieDeclarations]: Found specification of procedure get_dec_u16 [2021-11-25 20:17:03,375 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dec_u16 [2021-11-25 20:17:03,375 INFO L130 BoogieDeclarations]: Found specification of procedure enable_interrupts [2021-11-25 20:17:03,375 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_interrupts [2021-11-25 20:17:03,375 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-25 20:17:03,376 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-25 20:17:03,376 INFO L130 BoogieDeclarations]: Found specification of procedure airo_read_wireless_stats [2021-11-25 20:17:03,376 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_read_wireless_stats [2021-11-25 20:17:03,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:17:03,376 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2021-11-25 20:17:03,376 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2021-11-25 20:17:03,377 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-11-25 20:17:03,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-11-25 20:17:03,377 INFO L130 BoogieDeclarations]: Found specification of procedure airo_set_mac_address [2021-11-25 20:17:03,377 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_set_mac_address [2021-11-25 20:17:03,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 20:17:03,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 20:17:03,378 INFO L130 BoogieDeclarations]: Found specification of procedure emmh32_init [2021-11-25 20:17:03,378 INFO L138 BoogieDeclarations]: Found implementation of procedure emmh32_init [2021-11-25 20:17:03,378 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-25 20:17:03,378 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-25 20:17:03,378 INFO L130 BoogieDeclarations]: Found specification of procedure disable_MAC [2021-11-25 20:17:03,378 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_MAC [2021-11-25 20:17:03,379 INFO L130 BoogieDeclarations]: Found specification of procedure readStatsRid [2021-11-25 20:17:03,379 INFO L138 BoogieDeclarations]: Found implementation of procedure readStatsRid [2021-11-25 20:17:03,379 INFO L130 BoogieDeclarations]: Found specification of procedure encapsulate [2021-11-25 20:17:03,379 INFO L138 BoogieDeclarations]: Found implementation of procedure encapsulate [2021-11-25 20:17:03,379 INFO L130 BoogieDeclarations]: Found specification of procedure airo_set_promisc [2021-11-25 20:17:03,380 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_set_promisc [2021-11-25 20:17:05,059 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:17:05,064 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:17:05,421 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 20:17:54,817 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 20:17:55,152 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:17:58,772 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:17:58,772 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-25 20:17:58,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:17:58 BoogieIcfgContainer [2021-11-25 20:17:58,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:17:58,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:17:58,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:17:58,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:17:58,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:16:52" (1/3) ... [2021-11-25 20:17:58,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c183e80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:17:58, skipping insertion in model container [2021-11-25 20:17:58,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:17:01" (2/3) ... [2021-11-25 20:17:58,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c183e80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:17:58, skipping insertion in model container [2021-11-25 20:17:58,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:17:58" (3/3) ... [2021-11-25 20:17:58,801 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i [2021-11-25 20:17:58,809 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:17:58,809 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-25 20:17:58,893 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:17:58,910 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:17:58,910 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-25 20:17:59,014 INFO L276 IsEmpty]: Start isEmpty. Operand has 3946 states, 2337 states have (on average 1.335900727428327) internal successors, (3122), 2453 states have internal predecessors, (3122), 1413 states have call successors, (1413), 195 states have call predecessors, (1413), 194 states have return successors, (1406), 1359 states have call predecessors, (1406), 1406 states have call successors, (1406) [2021-11-25 20:17:59,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 616 [2021-11-25 20:17:59,067 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:17:59,069 INFO L514 BasicCegarLoop]: trace histogram [60, 59, 59, 59, 59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:17:59,073 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 20:17:59,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:17:59,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1368345799, now seen corresponding path program 1 times [2021-11-25 20:17:59,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:17:59,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210630479] [2021-11-25 20:17:59,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:17:59,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:17:59,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:18:00,563 INFO L134 CoverageAnalysis]: Checked inductivity of 13806 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13806 trivial. 0 not checked. [2021-11-25 20:18:00,563 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:18:00,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210630479] [2021-11-25 20:18:00,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210630479] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:18:00,564 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:18:00,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:18:00,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795365396] [2021-11-25 20:18:00,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:18:00,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:18:00,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:18:00,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:18:00,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:18:00,652 INFO L87 Difference]: Start difference. First operand has 3946 states, 2337 states have (on average 1.335900727428327) internal successors, (3122), 2453 states have internal predecessors, (3122), 1413 states have call successors, (1413), 195 states have call predecessors, (1413), 194 states have return successors, (1406), 1359 states have call predecessors, (1406), 1406 states have call successors, (1406) Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2021-11-25 20:18:03,850 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:06,567 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:10,641 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:15,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:18:15,116 INFO L93 Difference]: Finished difference Result 11232 states and 17156 transitions. [2021-11-25 20:18:15,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:18:15,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) Word has length 615 [2021-11-25 20:18:15,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:18:15,243 INFO L225 Difference]: With dead ends: 11232 [2021-11-25 20:18:15,243 INFO L226 Difference]: Without dead ends: 7394 [2021-11-25 20:18:15,295 INFO L932 BasicCegarLoop]: 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 [2021-11-25 20:18:15,302 INFO L933 BasicCegarLoop]: 6526 mSDtfsCounter, 5265 mSDsluCounter, 5814 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5275 SdHoareTripleChecker+Valid, 11744 SdHoareTripleChecker+Invalid, 1287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:18:15,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5275 Valid, 11744 Invalid, 1287 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 1271 Invalid, 3 Unknown, 0 Unchecked, 13.8s Time] [2021-11-25 20:18:15,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7394 states. [2021-11-25 20:18:16,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7394 to 7387. [2021-11-25 20:18:16,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7387 states, 4400 states have (on average 1.336818181818182) internal successors, (5882), 4629 states have internal predecessors, (5882), 2608 states have call successors, (2608), 377 states have call predecessors, (2608), 376 states have return successors, (2614), 2508 states have call predecessors, (2614), 2604 states have call successors, (2614) [2021-11-25 20:18:16,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7387 states to 7387 states and 11104 transitions. [2021-11-25 20:18:16,213 INFO L78 Accepts]: Start accepts. Automaton has 7387 states and 11104 transitions. Word has length 615 [2021-11-25 20:18:16,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:18:16,219 INFO L470 AbstractCegarLoop]: Abstraction has 7387 states and 11104 transitions. [2021-11-25 20:18:16,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2021-11-25 20:18:16,222 INFO L276 IsEmpty]: Start isEmpty. Operand 7387 states and 11104 transitions. [2021-11-25 20:18:16,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2021-11-25 20:18:16,249 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:18:16,249 INFO L514 BasicCegarLoop]: trace histogram [60, 59, 59, 59, 59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:18:16,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 20:18:16,250 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 20:18:16,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:18:16,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1762532157, now seen corresponding path program 1 times [2021-11-25 20:18:16,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:18:16,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092931604] [2021-11-25 20:18:16,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:18:16,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:18:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:18:17,141 INFO L134 CoverageAnalysis]: Checked inductivity of 13806 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13806 trivial. 0 not checked. [2021-11-25 20:18:17,142 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:18:17,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092931604] [2021-11-25 20:18:17,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092931604] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:18:17,142 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:18:17,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:18:17,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214733017] [2021-11-25 20:18:17,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:18:17,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:18:17,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:18:17,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:18:17,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:18:17,148 INFO L87 Difference]: Start difference. First operand 7387 states and 11104 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2021-11-25 20:18:20,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:22,831 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:28,091 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:30,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:18:30,920 INFO L93 Difference]: Finished difference Result 21591 states and 32449 transitions. [2021-11-25 20:18:30,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:18:30,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 624 [2021-11-25 20:18:30,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:18:31,076 INFO L225 Difference]: With dead ends: 21591 [2021-11-25 20:18:31,076 INFO L226 Difference]: Without dead ends: 14323 [2021-11-25 20:18:31,143 INFO L932 BasicCegarLoop]: 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 [2021-11-25 20:18:31,145 INFO L933 BasicCegarLoop]: 6542 mSDtfsCounter, 5259 mSDsluCounter, 5860 mSDsCounter, 0 mSdLazyCounter, 1278 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5266 SdHoareTripleChecker+Valid, 11801 SdHoareTripleChecker+Invalid, 1287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1278 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:18:31,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5266 Valid, 11801 Invalid, 1287 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 1278 Invalid, 3 Unknown, 0 Unchecked, 13.2s Time] [2021-11-25 20:18:31,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14323 states. [2021-11-25 20:18:31,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14323 to 14281. [2021-11-25 20:18:31,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14281 states, 8532 states have (on average 1.3384903891233004) internal successors, (11420), 8982 states have internal predecessors, (11420), 5009 states have call successors, (5009), 738 states have call predecessors, (5009), 737 states have return successors, (5034), 4808 states have call predecessors, (5034), 5005 states have call successors, (5034) [2021-11-25 20:18:32,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14281 states to 14281 states and 21463 transitions. [2021-11-25 20:18:32,048 INFO L78 Accepts]: Start accepts. Automaton has 14281 states and 21463 transitions. Word has length 624 [2021-11-25 20:18:32,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:18:32,051 INFO L470 AbstractCegarLoop]: Abstraction has 14281 states and 21463 transitions. [2021-11-25 20:18:32,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2021-11-25 20:18:32,051 INFO L276 IsEmpty]: Start isEmpty. Operand 14281 states and 21463 transitions. [2021-11-25 20:18:32,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2021-11-25 20:18:32,080 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:18:32,081 INFO L514 BasicCegarLoop]: trace histogram [60, 59, 59, 59, 59, 59, 59, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:18:32,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 20:18:32,083 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 20:18:32,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:18:32,084 INFO L85 PathProgramCache]: Analyzing trace with hash 908074971, now seen corresponding path program 1 times [2021-11-25 20:18:32,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:18:32,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185240992] [2021-11-25 20:18:32,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:18:32,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:18:32,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:18:33,182 INFO L134 CoverageAnalysis]: Checked inductivity of 13812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13812 trivial. 0 not checked. [2021-11-25 20:18:33,183 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:18:33,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185240992] [2021-11-25 20:18:33,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185240992] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:18:33,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:18:33,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:18:33,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024405508] [2021-11-25 20:18:33,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:18:33,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:18:33,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:18:33,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:18:33,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:18:33,189 INFO L87 Difference]: Start difference. First operand 14281 states and 21463 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) [2021-11-25 20:18:36,035 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:38,640 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:43,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:46,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:18:46,627 INFO L93 Difference]: Finished difference Result 40821 states and 61370 transitions. [2021-11-25 20:18:46,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:18:46,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) Word has length 642 [2021-11-25 20:18:46,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:18:46,924 INFO L225 Difference]: With dead ends: 40821 [2021-11-25 20:18:46,924 INFO L226 Difference]: Without dead ends: 26659 [2021-11-25 20:18:46,993 INFO L932 BasicCegarLoop]: 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 [2021-11-25 20:18:46,998 INFO L933 BasicCegarLoop]: 6623 mSDtfsCounter, 4826 mSDsluCounter, 5880 mSDsCounter, 0 mSdLazyCounter, 1290 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4833 SdHoareTripleChecker+Valid, 11891 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1290 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:18:46,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4833 Valid, 11891 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1290 Invalid, 3 Unknown, 0 Unchecked, 12.7s Time] [2021-11-25 20:18:47,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26659 states. [2021-11-25 20:18:48,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26659 to 26609. [2021-11-25 20:18:48,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26609 states, 15902 states have (on average 1.3392026160231418) internal successors, (21296), 16745 states have internal predecessors, (21296), 9297 states have call successors, (9297), 1408 states have call predecessors, (9297), 1407 states have return successors, (9422), 8887 states have call predecessors, (9422), 9293 states have call successors, (9422) [2021-11-25 20:18:48,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26609 states to 26609 states and 40015 transitions. [2021-11-25 20:18:48,617 INFO L78 Accepts]: Start accepts. Automaton has 26609 states and 40015 transitions. Word has length 642 [2021-11-25 20:18:48,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:18:48,620 INFO L470 AbstractCegarLoop]: Abstraction has 26609 states and 40015 transitions. [2021-11-25 20:18:48,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) [2021-11-25 20:18:48,620 INFO L276 IsEmpty]: Start isEmpty. Operand 26609 states and 40015 transitions. [2021-11-25 20:18:48,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 695 [2021-11-25 20:18:48,822 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:18:48,823 INFO L514 BasicCegarLoop]: trace histogram [62, 59, 59, 59, 59, 59, 59, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:18:48,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 20:18:48,824 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 20:18:48,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:18:48,824 INFO L85 PathProgramCache]: Analyzing trace with hash -581124741, now seen corresponding path program 1 times [2021-11-25 20:18:48,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:18:48,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912512711] [2021-11-25 20:18:48,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:18:48,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:18:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:18:49,981 INFO L134 CoverageAnalysis]: Checked inductivity of 14135 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14135 trivial. 0 not checked. [2021-11-25 20:18:49,981 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:18:49,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912512711] [2021-11-25 20:18:49,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912512711] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:18:49,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:18:49,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:18:49,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980678864] [2021-11-25 20:18:49,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:18:49,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:18:49,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:18:49,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:18:49,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:18:49,985 INFO L87 Difference]: Start difference. First operand 26609 states and 40015 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (75), 3 states have call predecessors, (75), 1 states have return successors, (73), 2 states have call predecessors, (73), 2 states have call successors, (73) [2021-11-25 20:18:53,711 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:56,953 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:02,826 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:05,082 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:08,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:19:08,172 INFO L93 Difference]: Finished difference Result 27589 states and 41308 transitions. [2021-11-25 20:19:08,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:19:08,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (75), 3 states have call predecessors, (75), 1 states have return successors, (73), 2 states have call predecessors, (73), 2 states have call successors, (73) Word has length 694 [2021-11-25 20:19:08,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:19:08,333 INFO L225 Difference]: With dead ends: 27589 [2021-11-25 20:19:08,333 INFO L226 Difference]: Without dead ends: 27587 [2021-11-25 20:19:08,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 20:19:08,352 INFO L933 BasicCegarLoop]: 5528 mSDtfsCounter, 5381 mSDsluCounter, 13697 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5402 SdHoareTripleChecker+Valid, 17839 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:19:08,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5402 Valid, 17839 Invalid, 2040 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2036 Invalid, 3 Unknown, 0 Unchecked, 17.3s Time] [2021-11-25 20:19:08,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27587 states. [2021-11-25 20:19:09,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27587 to 27575. [2021-11-25 20:19:09,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27575 states, 16459 states have (on average 1.3362294185551977) internal successors, (21993), 17342 states have internal predecessors, (21993), 9583 states have call successors, (9583), 1528 states have call predecessors, (9583), 1530 states have return successors, (9720), 9170 states have call predecessors, (9720), 9579 states have call successors, (9720) [2021-11-25 20:19:10,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27575 states to 27575 states and 41296 transitions. [2021-11-25 20:19:10,094 INFO L78 Accepts]: Start accepts. Automaton has 27575 states and 41296 transitions. Word has length 694 [2021-11-25 20:19:10,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:19:10,096 INFO L470 AbstractCegarLoop]: Abstraction has 27575 states and 41296 transitions. [2021-11-25 20:19:10,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (75), 3 states have call predecessors, (75), 1 states have return successors, (73), 2 states have call predecessors, (73), 2 states have call successors, (73) [2021-11-25 20:19:10,097 INFO L276 IsEmpty]: Start isEmpty. Operand 27575 states and 41296 transitions. [2021-11-25 20:19:10,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 700 [2021-11-25 20:19:10,130 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:19:10,131 INFO L514 BasicCegarLoop]: trace histogram [62, 59, 59, 59, 59, 59, 59, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:19:10,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 20:19:10,132 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 20:19:10,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:19:10,132 INFO L85 PathProgramCache]: Analyzing trace with hash -349297406, now seen corresponding path program 1 times [2021-11-25 20:19:10,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:19:10,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932254629] [2021-11-25 20:19:10,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:19:10,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:19:10,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:19:11,312 INFO L134 CoverageAnalysis]: Checked inductivity of 14137 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14135 trivial. 0 not checked. [2021-11-25 20:19:11,315 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:19:11,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932254629] [2021-11-25 20:19:11,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932254629] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:19:11,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:19:11,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:19:11,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968289142] [2021-11-25 20:19:11,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:19:11,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:19:11,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:19:11,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:19:11,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:19:11,318 INFO L87 Difference]: Start difference. First operand 27575 states and 41296 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (76), 3 states have call predecessors, (76), 1 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2021-11-25 20:19:15,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:18,421 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:23,608 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:27,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:19:27,417 INFO L93 Difference]: Finished difference Result 27586 states and 41304 transitions. [2021-11-25 20:19:27,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:19:27,418 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (76), 3 states have call predecessors, (76), 1 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) Word has length 699 [2021-11-25 20:19:27,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:19:27,686 INFO L225 Difference]: With dead ends: 27586 [2021-11-25 20:19:27,686 INFO L226 Difference]: Without dead ends: 27584 [2021-11-25 20:19:27,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 20:19:27,698 INFO L933 BasicCegarLoop]: 5531 mSDtfsCounter, 5376 mSDsluCounter, 13697 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5396 SdHoareTripleChecker+Valid, 17842 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:19:27,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5396 Valid, 17842 Invalid, 2040 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2036 Invalid, 3 Unknown, 0 Unchecked, 15.2s Time] [2021-11-25 20:19:27,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27584 states. [2021-11-25 20:19:29,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27584 to 27579. [2021-11-25 20:19:29,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27579 states, 16462 states have (on average 1.3361681448183695) internal successors, (21996), 17345 states have internal predecessors, (21996), 9583 states have call successors, (9583), 1529 states have call predecessors, (9583), 1531 states have return successors, (9720), 9170 states have call predecessors, (9720), 9579 states have call successors, (9720) [2021-11-25 20:19:29,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27579 states to 27579 states and 41299 transitions. [2021-11-25 20:19:29,237 INFO L78 Accepts]: Start accepts. Automaton has 27579 states and 41299 transitions. Word has length 699 [2021-11-25 20:19:29,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:19:29,239 INFO L470 AbstractCegarLoop]: Abstraction has 27579 states and 41299 transitions. [2021-11-25 20:19:29,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (76), 3 states have call predecessors, (76), 1 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2021-11-25 20:19:29,239 INFO L276 IsEmpty]: Start isEmpty. Operand 27579 states and 41299 transitions. [2021-11-25 20:19:29,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2021-11-25 20:19:29,273 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:19:29,273 INFO L514 BasicCegarLoop]: trace histogram [62, 59, 59, 59, 59, 59, 59, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:19:29,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 20:19:29,274 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 20:19:29,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:19:29,275 INFO L85 PathProgramCache]: Analyzing trace with hash -365432493, now seen corresponding path program 1 times [2021-11-25 20:19:29,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:19:29,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974564130] [2021-11-25 20:19:29,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:19:29,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:19:29,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:19:30,391 INFO L134 CoverageAnalysis]: Checked inductivity of 14155 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 14151 trivial. 0 not checked. [2021-11-25 20:19:30,392 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:19:30,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974564130] [2021-11-25 20:19:30,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974564130] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:19:30,392 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:19:30,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:19:30,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959093305] [2021-11-25 20:19:30,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:19:30,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:19:30,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:19:30,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:19:30,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:19:30,398 INFO L87 Difference]: Start difference. First operand 27579 states and 41299 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (81), 3 states have call predecessors, (81), 1 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) [2021-11-25 20:19:34,244 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:37,551 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:42,445 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:46,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:19:46,954 INFO L93 Difference]: Finished difference Result 27590 states and 41307 transitions. [2021-11-25 20:19:46,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:19:46,955 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (81), 3 states have call predecessors, (81), 1 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) Word has length 712 [2021-11-25 20:19:46,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:19:47,248 INFO L225 Difference]: With dead ends: 27590 [2021-11-25 20:19:47,249 INFO L226 Difference]: Without dead ends: 27588 [2021-11-25 20:19:47,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 20:19:47,263 INFO L933 BasicCegarLoop]: 5531 mSDtfsCounter, 5375 mSDsluCounter, 13697 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5394 SdHoareTripleChecker+Valid, 17842 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:19:47,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5394 Valid, 17842 Invalid, 2040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2036 Invalid, 3 Unknown, 0 Unchecked, 15.7s Time] [2021-11-25 20:19:47,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27588 states. [2021-11-25 20:19:48,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27588 to 27583. [2021-11-25 20:19:48,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27583 states, 16465 states have (on average 1.3361068934102642) internal successors, (21999), 17348 states have internal predecessors, (21999), 9583 states have call successors, (9583), 1530 states have call predecessors, (9583), 1532 states have return successors, (9720), 9170 states have call predecessors, (9720), 9579 states have call successors, (9720) [2021-11-25 20:19:48,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27583 states to 27583 states and 41302 transitions. [2021-11-25 20:19:48,813 INFO L78 Accepts]: Start accepts. Automaton has 27583 states and 41302 transitions. Word has length 712 [2021-11-25 20:19:48,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:19:48,815 INFO L470 AbstractCegarLoop]: Abstraction has 27583 states and 41302 transitions. [2021-11-25 20:19:48,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (81), 3 states have call predecessors, (81), 1 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) [2021-11-25 20:19:48,815 INFO L276 IsEmpty]: Start isEmpty. Operand 27583 states and 41302 transitions. [2021-11-25 20:19:48,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 718 [2021-11-25 20:19:48,854 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:19:48,854 INFO L514 BasicCegarLoop]: trace histogram [62, 59, 59, 59, 59, 59, 59, 8, 8, 4, 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] [2021-11-25 20:19:48,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 20:19:48,855 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 20:19:48,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:19:48,856 INFO L85 PathProgramCache]: Analyzing trace with hash 657180586, now seen corresponding path program 1 times [2021-11-25 20:19:48,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:19:48,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581816940] [2021-11-25 20:19:48,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:19:48,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:19:49,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:19:49,898 INFO L134 CoverageAnalysis]: Checked inductivity of 14165 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14159 trivial. 0 not checked. [2021-11-25 20:19:49,899 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:19:49,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581816940] [2021-11-25 20:19:49,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581816940] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:19:49,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:19:49,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:19:49,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109872359] [2021-11-25 20:19:49,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:19:49,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:19:49,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:19:49,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:19:49,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:19:49,901 INFO L87 Difference]: Start difference. First operand 27583 states and 41302 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (82), 3 states have call predecessors, (82), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2021-11-25 20:19:53,721 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:57,364 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:03,778 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:05,179 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:07,208 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:12,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:14,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:19,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:20:19,211 INFO L93 Difference]: Finished difference Result 54163 states and 82019 transitions. [2021-11-25 20:20:19,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 20:20:19,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (82), 3 states have call predecessors, (82), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) Word has length 717 [2021-11-25 20:20:19,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:20:19,544 INFO L225 Difference]: With dead ends: 54163 [2021-11-25 20:20:19,544 INFO L226 Difference]: Without dead ends: 54161 [2021-11-25 20:20:19,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 20:20:19,577 INFO L933 BasicCegarLoop]: 7503 mSDtfsCounter, 5616 mSDsluCounter, 22124 mSDsCounter, 0 mSdLazyCounter, 2824 mSolverCounterSat, 3 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5624 SdHoareTripleChecker+Valid, 27552 SdHoareTripleChecker+Invalid, 2832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2824 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:20:19,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5624 Valid, 27552 Invalid, 2832 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2824 Invalid, 5 Unknown, 0 Unchecked, 27.7s Time] [2021-11-25 20:20:19,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54161 states. [2021-11-25 20:20:22,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54161 to 54139. [2021-11-25 20:20:22,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54139 states, 32371 states have (on average 1.3382966235210527) internal successors, (43322), 34127 states have internal predecessors, (43322), 18765 states have call successors, (18765), 3004 states have call predecessors, (18765), 3000 states have return successors, (19910), 17914 states have call predecessors, (19910), 18757 states have call successors, (19910) [2021-11-25 20:20:22,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54139 states to 54139 states and 81997 transitions. [2021-11-25 20:20:22,500 INFO L78 Accepts]: Start accepts. Automaton has 54139 states and 81997 transitions. Word has length 717 [2021-11-25 20:20:22,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:20:22,501 INFO L470 AbstractCegarLoop]: Abstraction has 54139 states and 81997 transitions. [2021-11-25 20:20:22,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (82), 3 states have call predecessors, (82), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2021-11-25 20:20:22,502 INFO L276 IsEmpty]: Start isEmpty. Operand 54139 states and 81997 transitions. [2021-11-25 20:20:22,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 724 [2021-11-25 20:20:22,543 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:20:22,544 INFO L514 BasicCegarLoop]: trace histogram [62, 59, 59, 59, 59, 59, 59, 8, 8, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:20:22,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 20:20:22,545 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 20:20:22,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:20:22,545 INFO L85 PathProgramCache]: Analyzing trace with hash -843205703, now seen corresponding path program 1 times [2021-11-25 20:20:22,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:20:22,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904730783] [2021-11-25 20:20:22,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:20:22,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:20:22,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:20:23,617 INFO L134 CoverageAnalysis]: Checked inductivity of 14180 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 14172 trivial. 0 not checked. [2021-11-25 20:20:23,617 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:20:23,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904730783] [2021-11-25 20:20:23,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904730783] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:20:23,618 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:20:23,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:20:23,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794091304] [2021-11-25 20:20:23,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:20:23,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:20:23,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:20:23,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:20:23,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:20:23,620 INFO L87 Difference]: Start difference. First operand 54139 states and 81997 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (83), 3 states have call predecessors, (83), 1 states have return successors, (81), 2 states have call predecessors, (81), 2 states have call successors, (81) [2021-11-25 20:20:27,399 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:30,779 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:36,278 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:41,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:20:41,205 INFO L93 Difference]: Finished difference Result 54154 states and 82009 transitions. [2021-11-25 20:20:41,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:20:41,217 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (83), 3 states have call predecessors, (83), 1 states have return successors, (81), 2 states have call predecessors, (81), 2 states have call successors, (81) Word has length 723 [2021-11-25 20:20:41,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:20:41,752 INFO L225 Difference]: With dead ends: 54154 [2021-11-25 20:20:41,753 INFO L226 Difference]: Without dead ends: 54152 [2021-11-25 20:20:41,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 20:20:41,778 INFO L933 BasicCegarLoop]: 5531 mSDtfsCounter, 5375 mSDsluCounter, 13697 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5392 SdHoareTripleChecker+Valid, 17842 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:20:41,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5392 Valid, 17842 Invalid, 2040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2036 Invalid, 3 Unknown, 0 Unchecked, 16.0s Time] [2021-11-25 20:20:41,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54152 states. [2021-11-25 20:20:44,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54152 to 54147. [2021-11-25 20:20:44,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54147 states, 32377 states have (on average 1.3382339314945795) internal successors, (43328), 34133 states have internal predecessors, (43328), 18765 states have call successors, (18765), 3006 states have call predecessors, (18765), 3002 states have return successors, (19910), 17914 states have call predecessors, (19910), 18757 states have call successors, (19910) [2021-11-25 20:20:44,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54147 states to 54147 states and 82003 transitions. [2021-11-25 20:20:44,856 INFO L78 Accepts]: Start accepts. Automaton has 54147 states and 82003 transitions. Word has length 723 [2021-11-25 20:20:44,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:20:44,857 INFO L470 AbstractCegarLoop]: Abstraction has 54147 states and 82003 transitions. [2021-11-25 20:20:44,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (83), 3 states have call predecessors, (83), 1 states have return successors, (81), 2 states have call predecessors, (81), 2 states have call successors, (81) [2021-11-25 20:20:44,858 INFO L276 IsEmpty]: Start isEmpty. Operand 54147 states and 82003 transitions. [2021-11-25 20:20:44,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 728 [2021-11-25 20:20:44,889 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:20:44,890 INFO L514 BasicCegarLoop]: trace histogram [62, 59, 59, 59, 59, 59, 59, 8, 8, 6, 5, 5, 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] [2021-11-25 20:20:44,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 20:20:44,890 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 20:20:44,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:20:44,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1923984118, now seen corresponding path program 1 times [2021-11-25 20:20:44,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:20:44,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225332203] [2021-11-25 20:20:44,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:20:44,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:20:45,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:20:45,941 INFO L134 CoverageAnalysis]: Checked inductivity of 14197 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 14187 trivial. 0 not checked. [2021-11-25 20:20:45,941 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:20:45,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225332203] [2021-11-25 20:20:45,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225332203] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:20:45,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:20:45,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:20:45,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903519275] [2021-11-25 20:20:45,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:20:45,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:20:45,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:20:45,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:20:45,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:20:45,944 INFO L87 Difference]: Start difference. First operand 54147 states and 82003 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (84), 3 states have call predecessors, (84), 1 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2021-11-25 20:20:49,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:52,974 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:58,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:04,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:21:04,449 INFO L93 Difference]: Finished difference Result 54162 states and 82015 transitions. [2021-11-25 20:21:04,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:21:04,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (84), 3 states have call predecessors, (84), 1 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) Word has length 727 [2021-11-25 20:21:04,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:21:04,729 INFO L225 Difference]: With dead ends: 54162 [2021-11-25 20:21:04,730 INFO L226 Difference]: Without dead ends: 54160 [2021-11-25 20:21:04,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 20:21:04,757 INFO L933 BasicCegarLoop]: 5531 mSDtfsCounter, 5375 mSDsluCounter, 13697 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5391 SdHoareTripleChecker+Valid, 17842 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:21:04,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5391 Valid, 17842 Invalid, 2040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2036 Invalid, 3 Unknown, 0 Unchecked, 16.9s Time] [2021-11-25 20:21:04,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54160 states. [2021-11-25 20:21:07,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54160 to 54155. [2021-11-25 20:21:07,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54155 states, 32383 states have (on average 1.3381712626995645) internal successors, (43334), 34139 states have internal predecessors, (43334), 18765 states have call successors, (18765), 3008 states have call predecessors, (18765), 3004 states have return successors, (19910), 17914 states have call predecessors, (19910), 18757 states have call successors, (19910) [2021-11-25 20:21:07,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54155 states to 54155 states and 82009 transitions. [2021-11-25 20:21:07,865 INFO L78 Accepts]: Start accepts. Automaton has 54155 states and 82009 transitions. Word has length 727 [2021-11-25 20:21:07,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:21:07,866 INFO L470 AbstractCegarLoop]: Abstraction has 54155 states and 82009 transitions. [2021-11-25 20:21:07,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (84), 3 states have call predecessors, (84), 1 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2021-11-25 20:21:07,867 INFO L276 IsEmpty]: Start isEmpty. Operand 54155 states and 82009 transitions. [2021-11-25 20:21:07,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 734 [2021-11-25 20:21:07,891 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:21:07,891 INFO L514 BasicCegarLoop]: trace histogram [62, 59, 59, 59, 59, 59, 59, 8, 8, 7, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:21:07,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 20:21:07,891 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 20:21:07,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:21:07,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1844669863, now seen corresponding path program 1 times [2021-11-25 20:21:07,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:21:07,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256147621] [2021-11-25 20:21:07,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:21:07,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:21:08,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:21:08,982 INFO L134 CoverageAnalysis]: Checked inductivity of 14220 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 14208 trivial. 0 not checked. [2021-11-25 20:21:08,982 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:21:08,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256147621] [2021-11-25 20:21:08,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256147621] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:21:08,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:21:08,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:21:08,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691152313] [2021-11-25 20:21:08,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:21:08,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:21:08,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:21:08,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:21:08,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:21:08,985 INFO L87 Difference]: Start difference. First operand 54155 states and 82009 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (85), 3 states have call predecessors, (85), 1 states have return successors, (83), 2 states have call predecessors, (83), 2 states have call successors, (83) [2021-11-25 20:21:12,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:16,184 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:22,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:24,471 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:28,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:21:28,155 INFO L93 Difference]: Finished difference Result 54170 states and 82021 transitions. [2021-11-25 20:21:28,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:21:28,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (85), 3 states have call predecessors, (85), 1 states have return successors, (83), 2 states have call predecessors, (83), 2 states have call successors, (83) Word has length 733 [2021-11-25 20:21:28,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:21:28,351 INFO L225 Difference]: With dead ends: 54170 [2021-11-25 20:21:28,351 INFO L226 Difference]: Without dead ends: 54168 [2021-11-25 20:21:28,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 20:21:28,369 INFO L933 BasicCegarLoop]: 5531 mSDtfsCounter, 5375 mSDsluCounter, 13697 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5390 SdHoareTripleChecker+Valid, 17842 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:21:28,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5390 Valid, 17842 Invalid, 2040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2036 Invalid, 3 Unknown, 0 Unchecked, 17.4s Time] [2021-11-25 20:21:28,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54168 states. [2021-11-25 20:21:30,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54168 to 54163. [2021-11-25 20:21:30,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54163 states, 32389 states have (on average 1.3381086171230974) internal successors, (43340), 34145 states have internal predecessors, (43340), 18765 states have call successors, (18765), 3010 states have call predecessors, (18765), 3006 states have return successors, (19910), 17914 states have call predecessors, (19910), 18757 states have call successors, (19910) [2021-11-25 20:21:31,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54163 states to 54163 states and 82015 transitions. [2021-11-25 20:21:31,065 INFO L78 Accepts]: Start accepts. Automaton has 54163 states and 82015 transitions. Word has length 733 [2021-11-25 20:21:31,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:21:31,065 INFO L470 AbstractCegarLoop]: Abstraction has 54163 states and 82015 transitions. [2021-11-25 20:21:31,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (85), 3 states have call predecessors, (85), 1 states have return successors, (83), 2 states have call predecessors, (83), 2 states have call successors, (83) [2021-11-25 20:21:31,065 INFO L276 IsEmpty]: Start isEmpty. Operand 54163 states and 82015 transitions. [2021-11-25 20:21:31,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 739 [2021-11-25 20:21:31,098 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:21:31,099 INFO L514 BasicCegarLoop]: trace histogram [62, 59, 59, 59, 59, 59, 59, 8, 8, 8, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:21:31,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-25 20:21:31,100 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 20:21:31,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:21:31,100 INFO L85 PathProgramCache]: Analyzing trace with hash 180697444, now seen corresponding path program 1 times [2021-11-25 20:21:31,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:21:31,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838047815] [2021-11-25 20:21:31,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:21:31,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:21:31,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:21:32,331 INFO L134 CoverageAnalysis]: Checked inductivity of 14246 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 14232 trivial. 0 not checked. [2021-11-25 20:21:32,332 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:21:32,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838047815] [2021-11-25 20:21:32,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838047815] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:21:32,332 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:21:32,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:21:32,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576248192] [2021-11-25 20:21:32,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:21:32,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:21:32,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:21:32,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:21:32,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:21:32,335 INFO L87 Difference]: Start difference. First operand 54163 states and 82015 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (86), 3 states have call predecessors, (86), 1 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2021-11-25 20:21:36,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:39,895 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:45,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:50,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:21:50,414 INFO L93 Difference]: Finished difference Result 54178 states and 82027 transitions. [2021-11-25 20:21:50,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:21:50,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (86), 3 states have call predecessors, (86), 1 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) Word has length 738 [2021-11-25 20:21:50,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:21:50,739 INFO L225 Difference]: With dead ends: 54178 [2021-11-25 20:21:50,740 INFO L226 Difference]: Without dead ends: 54176 [2021-11-25 20:21:50,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 20:21:50,758 INFO L933 BasicCegarLoop]: 5531 mSDtfsCounter, 5375 mSDsluCounter, 13697 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5389 SdHoareTripleChecker+Valid, 17842 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:21:50,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5389 Valid, 17842 Invalid, 2040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2036 Invalid, 3 Unknown, 0 Unchecked, 16.2s Time] [2021-11-25 20:21:50,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54176 states. [2021-11-25 20:21:53,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54176 to 54171. [2021-11-25 20:21:53,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54171 states, 32395 states have (on average 1.3380459947522765) internal successors, (43346), 34151 states have internal predecessors, (43346), 18765 states have call successors, (18765), 3012 states have call predecessors, (18765), 3008 states have return successors, (19910), 17914 states have call predecessors, (19910), 18757 states have call successors, (19910) [2021-11-25 20:21:53,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54171 states to 54171 states and 82021 transitions. [2021-11-25 20:21:53,638 INFO L78 Accepts]: Start accepts. Automaton has 54171 states and 82021 transitions. Word has length 738 [2021-11-25 20:21:53,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:21:53,639 INFO L470 AbstractCegarLoop]: Abstraction has 54171 states and 82021 transitions. [2021-11-25 20:21:53,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (86), 3 states have call predecessors, (86), 1 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2021-11-25 20:21:53,639 INFO L276 IsEmpty]: Start isEmpty. Operand 54171 states and 82021 transitions. [2021-11-25 20:21:53,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 743 [2021-11-25 20:21:53,665 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:21:53,665 INFO L514 BasicCegarLoop]: trace histogram [62, 59, 59, 59, 59, 59, 59, 9, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:21:53,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-25 20:21:53,665 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 20:21:53,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:21:53,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1426910131, now seen corresponding path program 1 times [2021-11-25 20:21:53,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:21:53,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617976367] [2021-11-25 20:21:53,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:21:53,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:21:53,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:21:54,717 INFO L134 CoverageAnalysis]: Checked inductivity of 14275 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 14259 trivial. 0 not checked. [2021-11-25 20:21:54,717 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:21:54,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617976367] [2021-11-25 20:21:54,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617976367] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:21:54,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:21:54,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:21:54,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532541704] [2021-11-25 20:21:54,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:21:54,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:21:54,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:21:54,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:21:54,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:21:54,720 INFO L87 Difference]: Start difference. First operand 54171 states and 82021 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (87), 3 states have call predecessors, (87), 1 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) [2021-11-25 20:21:58,664 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:02,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:07,915 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:14,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:22:14,432 INFO L93 Difference]: Finished difference Result 54186 states and 82033 transitions. [2021-11-25 20:22:14,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:22:14,432 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (87), 3 states have call predecessors, (87), 1 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) Word has length 742 [2021-11-25 20:22:14,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:22:14,637 INFO L225 Difference]: With dead ends: 54186 [2021-11-25 20:22:14,637 INFO L226 Difference]: Without dead ends: 54184 [2021-11-25 20:22:14,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 20:22:14,664 INFO L933 BasicCegarLoop]: 5531 mSDtfsCounter, 5375 mSDsluCounter, 13697 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5388 SdHoareTripleChecker+Valid, 17842 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:22:14,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5388 Valid, 17842 Invalid, 2040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2036 Invalid, 3 Unknown, 0 Unchecked, 17.6s Time] [2021-11-25 20:22:14,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54184 states. [2021-11-25 20:22:17,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54184 to 54179. [2021-11-25 20:22:17,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54179 states, 32401 states have (on average 1.3379833955742106) internal successors, (43352), 34157 states have internal predecessors, (43352), 18765 states have call successors, (18765), 3014 states have call predecessors, (18765), 3010 states have return successors, (19910), 17914 states have call predecessors, (19910), 18757 states have call successors, (19910) [2021-11-25 20:22:17,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54179 states to 54179 states and 82027 transitions. [2021-11-25 20:22:17,742 INFO L78 Accepts]: Start accepts. Automaton has 54179 states and 82027 transitions. Word has length 742 [2021-11-25 20:22:17,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:22:17,743 INFO L470 AbstractCegarLoop]: Abstraction has 54179 states and 82027 transitions. [2021-11-25 20:22:17,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (87), 3 states have call predecessors, (87), 1 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) [2021-11-25 20:22:17,743 INFO L276 IsEmpty]: Start isEmpty. Operand 54179 states and 82027 transitions. [2021-11-25 20:22:17,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 763 [2021-11-25 20:22:17,772 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:22:17,772 INFO L514 BasicCegarLoop]: trace histogram [61, 60, 60, 60, 60, 60, 60, 10, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:22:17,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-25 20:22:17,772 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 20:22:17,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:22:17,773 INFO L85 PathProgramCache]: Analyzing trace with hash 2072751991, now seen corresponding path program 1 times [2021-11-25 20:22:17,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:22:17,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485483402] [2021-11-25 20:22:17,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:22:17,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:22:18,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:22:18,666 INFO L134 CoverageAnalysis]: Checked inductivity of 14478 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14478 trivial. 0 not checked. [2021-11-25 20:22:18,666 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:22:18,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485483402] [2021-11-25 20:22:18,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485483402] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:22:18,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:22:18,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:22:18,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582406296] [2021-11-25 20:22:18,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:22:18,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:22:18,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:22:18,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:22:18,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:22:18,669 INFO L87 Difference]: Start difference. First operand 54179 states and 82027 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (85), 2 states have call predecessors, (85), 1 states have return successors, (79), 3 states have call predecessors, (79), 3 states have call successors, (79) [2021-11-25 20:22:21,514 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:24,116 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:28,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:35,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:22:35,473 INFO L93 Difference]: Finished difference Result 134095 states and 202914 transitions. [2021-11-25 20:22:35,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:22:35,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (85), 2 states have call predecessors, (85), 1 states have return successors, (79), 3 states have call predecessors, (79), 3 states have call successors, (79) Word has length 762 [2021-11-25 20:22:35,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:22:35,851 INFO L225 Difference]: With dead ends: 134095 [2021-11-25 20:22:35,851 INFO L226 Difference]: Without dead ends: 80035 [2021-11-25 20:22:36,111 INFO L932 BasicCegarLoop]: 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 [2021-11-25 20:22:36,111 INFO L933 BasicCegarLoop]: 6521 mSDtfsCounter, 5240 mSDsluCounter, 5853 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5250 SdHoareTripleChecker+Valid, 11768 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1288 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:22:36,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5250 Valid, 11768 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1288 Invalid, 3 Unknown, 0 Unchecked, 13.0s Time] [2021-11-25 20:22:36,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80035 states. [2021-11-25 20:22:41,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80035 to 79868. [2021-11-25 20:22:41,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79868 states, 47836 states have (on average 1.3371519357805837) internal successors, (63964), 50459 states have internal predecessors, (63964), 27531 states have call successors, (27531), 4506 states have call predecessors, (27531), 4498 states have return successors, (29234), 26227 states have call predecessors, (29234), 27523 states have call successors, (29234) [2021-11-25 20:22:42,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79868 states to 79868 states and 120729 transitions. [2021-11-25 20:22:42,645 INFO L78 Accepts]: Start accepts. Automaton has 79868 states and 120729 transitions. Word has length 762 [2021-11-25 20:22:42,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:22:42,646 INFO L470 AbstractCegarLoop]: Abstraction has 79868 states and 120729 transitions. [2021-11-25 20:22:42,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (85), 2 states have call predecessors, (85), 1 states have return successors, (79), 3 states have call predecessors, (79), 3 states have call successors, (79) [2021-11-25 20:22:42,647 INFO L276 IsEmpty]: Start isEmpty. Operand 79868 states and 120729 transitions. [2021-11-25 20:22:42,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 763 [2021-11-25 20:22:42,690 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:22:42,691 INFO L514 BasicCegarLoop]: trace histogram [60, 59, 59, 59, 59, 59, 59, 10, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:22:42,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-25 20:22:42,692 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 20:22:42,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:22:42,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1507754445, now seen corresponding path program 1 times [2021-11-25 20:22:42,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:22:42,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322107691] [2021-11-25 20:22:42,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:22:42,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:22:42,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:22:43,261 INFO L134 CoverageAnalysis]: Checked inductivity of 14004 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14004 trivial. 0 not checked. [2021-11-25 20:22:43,261 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:22:43,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322107691] [2021-11-25 20:22:43,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322107691] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:22:43,261 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:22:43,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:22:43,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043423024] [2021-11-25 20:22:43,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:22:43,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:22:43,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:22:43,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:22:43,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:22:43,264 INFO L87 Difference]: Start difference. First operand 79868 states and 120729 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (78), 3 states have call predecessors, (78), 3 states have call successors, (78) [2021-11-25 20:22:45,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:49,381 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []