./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-alx-alx.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_bfe4f74e-4da8-44ae-9c23-d23a06e26bb7/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe4f74e-4da8-44ae-9c23-d23a06e26bb7/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_bfe4f74e-4da8-44ae-9c23-d23a06e26bb7/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe4f74e-4da8-44ae-9c23-d23a06e26bb7/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe4f74e-4da8-44ae-9c23-d23a06e26bb7/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_bfe4f74e-4da8-44ae-9c23-d23a06e26bb7/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 05e3ebea4820703b3259b4b6dd440513670562ea5166f99f8e3aabd0be2e3f32 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:04:43,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:04:43,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:04:43,244 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:04:43,245 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:04:43,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:04:43,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:04:43,255 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:04:43,258 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:04:43,263 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:04:43,264 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:04:43,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:04:43,266 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:04:43,269 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:04:43,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:04:43,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:04:43,277 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:04:43,278 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:04:43,280 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:04:43,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:04:43,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:04:43,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:04:43,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:04:43,296 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:04:43,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:04:43,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:04:43,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:04:43,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:04:43,308 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:04:43,310 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:04:43,310 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:04:43,311 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:04:43,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:04:43,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:04:43,316 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:04:43,316 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:04:43,317 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:04:43,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:04:43,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:04:43,318 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:04:43,319 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:04:43,319 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe4f74e-4da8-44ae-9c23-d23a06e26bb7/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 20:04:43,362 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:04:43,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:04:43,363 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:04:43,363 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:04:43,364 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:04:43,370 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:04:43,370 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:04:43,371 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:04:43,371 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:04:43,371 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:04:43,372 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:04:43,373 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:04:43,373 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:04:43,373 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:04:43,373 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:04:43,373 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:04:43,374 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:04:43,374 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:04:43,375 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:04:43,375 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:04:43,376 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:04:43,376 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:04:43,376 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:04:43,376 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:04:43,377 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:04:43,377 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:04:43,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:04:43,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:04:43,379 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:04:43,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:04:43,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:04:43,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:04:43,380 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:04:43,380 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:04:43,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:04:43,381 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:04:43,381 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:04:43,381 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:04:43,381 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_bfe4f74e-4da8-44ae-9c23-d23a06e26bb7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe4f74e-4da8-44ae-9c23-d23a06e26bb7/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05e3ebea4820703b3259b4b6dd440513670562ea5166f99f8e3aabd0be2e3f32 [2021-11-25 20:04:43,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:04:43,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:04:43,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:04:43,682 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:04:43,683 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:04:43,684 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe4f74e-4da8-44ae-9c23-d23a06e26bb7/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i [2021-11-25 20:04:43,758 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe4f74e-4da8-44ae-9c23-d23a06e26bb7/bin/utaipan-eEHZpOm5b7/data/881c58f28/5c50165b16d046838b92b9e924490a73/FLAG406937a61 [2021-11-25 20:04:44,836 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:04:44,837 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe4f74e-4da8-44ae-9c23-d23a06e26bb7/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i [2021-11-25 20:04:44,918 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe4f74e-4da8-44ae-9c23-d23a06e26bb7/bin/utaipan-eEHZpOm5b7/data/881c58f28/5c50165b16d046838b92b9e924490a73/FLAG406937a61 [2021-11-25 20:04:45,146 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe4f74e-4da8-44ae-9c23-d23a06e26bb7/bin/utaipan-eEHZpOm5b7/data/881c58f28/5c50165b16d046838b92b9e924490a73 [2021-11-25 20:04:45,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:04:45,150 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:04:45,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:04:45,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:04:45,155 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:04:45,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:04:45" (1/1) ... [2021-11-25 20:04:45,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66b1483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:04:45, skipping insertion in model container [2021-11-25 20:04:45,157 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:04:45" (1/1) ... [2021-11-25 20:04:45,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:04:45,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:04:50,482 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_bfe4f74e-4da8-44ae-9c23-d23a06e26bb7/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i[460236,460249] [2021-11-25 20:04:50,485 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_bfe4f74e-4da8-44ae-9c23-d23a06e26bb7/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i[460405,460418] [2021-11-25 20:04:50,485 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_bfe4f74e-4da8-44ae-9c23-d23a06e26bb7/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i[460572,460585] [2021-11-25 20:04:50,486 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_bfe4f74e-4da8-44ae-9c23-d23a06e26bb7/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i[460740,460753] [2021-11-25 20:04:50,515 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:04:50,625 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:04:51,094 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_bfe4f74e-4da8-44ae-9c23-d23a06e26bb7/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i[460236,460249] [2021-11-25 20:04:51,095 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_bfe4f74e-4da8-44ae-9c23-d23a06e26bb7/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i[460405,460418] [2021-11-25 20:04:51,095 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_bfe4f74e-4da8-44ae-9c23-d23a06e26bb7/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i[460572,460585] [2021-11-25 20:04:51,096 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_bfe4f74e-4da8-44ae-9c23-d23a06e26bb7/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i[460740,460753] [2021-11-25 20:04:51,108 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:04:51,498 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:04:51,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:04:51 WrapperNode [2021-11-25 20:04:51,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:04:51,500 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:04:51,500 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:04:51,500 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:04:51,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:04:51" (1/1) ... [2021-11-25 20:04:51,657 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:04:51" (1/1) ... [2021-11-25 20:04:51,991 INFO L137 Inliner]: procedures = 676, calls = 4362, calls flagged for inlining = 337, calls inlined = 299, statements flattened = 8524 [2021-11-25 20:04:51,992 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:04:51,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:04:51,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:04:51,994 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:04:52,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:04:51" (1/1) ... [2021-11-25 20:04:52,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:04:51" (1/1) ... [2021-11-25 20:04:52,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:04:51" (1/1) ... [2021-11-25 20:04:52,085 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:04:51" (1/1) ... [2021-11-25 20:04:52,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:04:51" (1/1) ... [2021-11-25 20:04:52,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:04:51" (1/1) ... [2021-11-25 20:04:52,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:04:51" (1/1) ... [2021-11-25 20:04:52,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:04:52,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:04:52,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:04:52,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:04:52,391 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:04:51" (1/1) ... [2021-11-25 20:04:52,398 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:04:52,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe4f74e-4da8-44ae-9c23-d23a06e26bb7/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:04:52,520 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe4f74e-4da8-44ae-9c23-d23a06e26bb7/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:04:52,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfe4f74e-4da8-44ae-9c23-d23a06e26bb7/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:04:52,599 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2021-11-25 20:04:52,600 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2021-11-25 20:04:52,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 20:04:52,600 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 20:04:52,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2021-11-25 20:04:52,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2021-11-25 20:04:52,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_80 [2021-11-25 20:04:52,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_80 [2021-11-25 20:04:52,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 20:04:52,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 20:04:52,601 INFO L130 BoogieDeclarations]: Found specification of procedure alx_halt [2021-11-25 20:04:52,601 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_halt [2021-11-25 20:04:52,601 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_txbuf [2021-11-25 20:04:52,602 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_txbuf [2021-11-25 20:04:52,602 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2021-11-25 20:04:52,602 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2021-11-25 20:04:52,602 INFO L130 BoogieDeclarations]: Found specification of procedure alx_suspend [2021-11-25 20:04:52,602 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_suspend [2021-11-25 20:04:52,602 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_read_phy_reg [2021-11-25 20:04:52,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_read_phy_reg [2021-11-25 20:04:52,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 20:04:52,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 20:04:52,603 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-25 20:04:52,603 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-25 20:04:52,603 INFO L130 BoogieDeclarations]: Found specification of procedure alx_wait_reg [2021-11-25 20:04:52,604 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_wait_reg [2021-11-25 20:04:52,604 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-25 20:04:52,604 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-25 20:04:52,604 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-25 20:04:52,604 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-25 20:04:52,605 INFO L130 BoogieDeclarations]: Found specification of procedure alx_pci_error_resume [2021-11-25 20:04:52,605 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_pci_error_resume [2021-11-25 20:04:52,605 INFO L130 BoogieDeclarations]: Found specification of procedure alx_tx_timeout [2021-11-25 20:04:52,605 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_tx_timeout [2021-11-25 20:04:52,605 INFO L130 BoogieDeclarations]: Found specification of procedure alx_irq_enable [2021-11-25 20:04:52,605 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_irq_enable [2021-11-25 20:04:52,606 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 20:04:52,606 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 20:04:52,606 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_mem16 [2021-11-25 20:04:52,606 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_mem16 [2021-11-25 20:04:52,606 INFO L130 BoogieDeclarations]: Found specification of procedure alx_irq_disable [2021-11-25 20:04:52,607 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_irq_disable [2021-11-25 20:04:52,607 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-25 20:04:52,608 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-25 20:04:52,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 20:04:52,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 20:04:52,609 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-25 20:04:52,609 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-25 20:04:52,609 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-25 20:04:52,609 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-25 20:04:52,609 INFO L130 BoogieDeclarations]: Found specification of procedure alx_activate [2021-11-25 20:04:52,610 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_activate [2021-11-25 20:04:52,610 INFO L130 BoogieDeclarations]: Found specification of procedure alx_remove [2021-11-25 20:04:52,610 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_remove [2021-11-25 20:04:52,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 20:04:52,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 20:04:52,611 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_msi [2021-11-25 20:04:52,611 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_msi [2021-11-25 20:04:52,611 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-25 20:04:52,611 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-25 20:04:52,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:04:52,612 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-25 20:04:52,612 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-25 20:04:52,612 INFO L130 BoogieDeclarations]: Found specification of procedure alx_post_write [2021-11-25 20:04:52,612 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_post_write [2021-11-25 20:04:52,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_62 [2021-11-25 20:04:52,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_62 [2021-11-25 20:04:52,612 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-25 20:04:52,613 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-25 20:04:52,613 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-25 20:04:52,613 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-25 20:04:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_reg [2021-11-25 20:04:52,614 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_reg [2021-11-25 20:04:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2021-11-25 20:04:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_ext [2021-11-25 20:04:52,614 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_ext [2021-11-25 20:04:52,615 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 20:04:52,615 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 20:04:52,615 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-25 20:04:52,616 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-25 20:04:52,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 20:04:52,616 INFO L130 BoogieDeclarations]: Found specification of procedure ethadv_to_hw_cfg [2021-11-25 20:04:52,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ethadv_to_hw_cfg [2021-11-25 20:04:52,617 INFO L130 BoogieDeclarations]: Found specification of procedure alx_stop [2021-11-25 20:04:52,617 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_stop [2021-11-25 20:04:52,617 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 20:04:52,617 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 20:04:52,618 INFO L130 BoogieDeclarations]: Found specification of procedure alx_resume [2021-11-25 20:04:52,618 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_resume [2021-11-25 20:04:52,618 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-25 20:04:52,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-25 20:04:52,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 20:04:52,619 INFO L130 BoogieDeclarations]: Found specification of procedure alx_schedule_link_check [2021-11-25 20:04:52,619 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_schedule_link_check [2021-11-25 20:04:52,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 20:04:52,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 20:04:52,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:04:52,620 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-25 20:04:52,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-25 20:04:52,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 20:04:52,620 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 20:04:52,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-25 20:04:52,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-25 20:04:52,621 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_open [2021-11-25 20:04:52,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_open [2021-11-25 20:04:52,622 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_core [2021-11-25 20:04:52,625 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_core [2021-11-25 20:04:52,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-25 20:04:52,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-25 20:04:52,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 20:04:52,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 20:04:52,626 INFO L130 BoogieDeclarations]: Found specification of procedure alx_update_hw_stats [2021-11-25 20:04:52,626 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_update_hw_stats [2021-11-25 20:04:52,627 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_mem32 [2021-11-25 20:04:52,627 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_mem32 [2021-11-25 20:04:52,633 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-25 20:04:52,634 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-25 20:04:52,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-25 20:04:52,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-25 20:04:52,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:04:52,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-25 20:04:52,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-25 20:04:52,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-25 20:04:52,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-25 20:04:52,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-25 20:04:52,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-25 20:04:52,635 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_dbg [2021-11-25 20:04:52,635 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_dbg [2021-11-25 20:04:52,636 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-25 20:04:52,636 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-25 20:04:52,636 INFO L130 BoogieDeclarations]: Found specification of procedure alx_netif_stop [2021-11-25 20:04:52,636 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_netif_stop [2021-11-25 20:04:52,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:04:52,636 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-25 20:04:52,636 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-25 20:04:52,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 20:04:52,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 20:04:52,637 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 20:04:52,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 20:04:52,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:04:52,637 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 20:04:52,637 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_giga [2021-11-25 20:04:52,638 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_giga [2021-11-25 20:04:52,638 INFO L130 BoogieDeclarations]: Found specification of procedure alx_poll_controller [2021-11-25 20:04:52,638 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_poll_controller [2021-11-25 20:04:52,638 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_pcie [2021-11-25 20:04:52,638 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_pcie [2021-11-25 20:04:52,638 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 20:04:52,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 20:04:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 20:04:52,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 20:04:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_is_locked [2021-11-25 20:04:52,639 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_is_locked [2021-11-25 20:04:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure alx_schedule_reset [2021-11-25 20:04:52,639 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_schedule_reset [2021-11-25 20:04:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_legacy [2021-11-25 20:04:52,640 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_legacy [2021-11-25 20:04:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure alx_refill_rx_ring [2021-11-25 20:04:52,640 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_refill_rx_ring [2021-11-25 20:04:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_dbg [2021-11-25 20:04:52,640 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_dbg [2021-11-25 20:04:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-25 20:04:52,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-25 20:04:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-25 20:04:52,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-25 20:04:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-25 20:04:52,641 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-25 20:04:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 20:04:52,641 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 20:04:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure alx_set_macaddr [2021-11-25 20:04:52,641 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_set_macaddr [2021-11-25 20:04:52,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-25 20:04:52,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-25 20:04:52,642 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2021-11-25 20:04:52,642 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2021-11-25 20:04:52,642 INFO L130 BoogieDeclarations]: Found specification of procedure alx_speed_to_ethadv [2021-11-25 20:04:52,642 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_speed_to_ethadv [2021-11-25 20:04:52,642 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-25 20:04:52,643 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-25 20:04:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_rings [2021-11-25 20:04:52,643 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_rings [2021-11-25 20:04:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:04:52,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:04:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-25 20:04:52,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-25 20:04:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2021-11-25 20:04:52,644 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2021-11-25 20:04:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 20:04:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 20:04:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 20:04:52,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 20:04:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2021-11-25 20:04:52,645 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2021-11-25 20:04:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-25 20:04:52,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-25 20:04:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 20:04:52,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 20:04:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-25 20:04:52,645 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-25 20:04:52,646 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-25 20:04:52,646 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-25 20:04:52,646 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-25 20:04:52,646 INFO L130 BoogieDeclarations]: Found specification of procedure alx_open [2021-11-25 20:04:52,646 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_open [2021-11-25 20:04:52,646 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-25 20:04:52,646 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-25 20:04:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-25 20:04:52,647 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-25 20:04:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_with_cr [2021-11-25 20:04:52,647 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_with_cr [2021-11-25 20:04:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-25 20:04:52,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-25 20:04:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2021-11-25 20:04:52,648 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2021-11-25 20:04:52,648 INFO L130 BoogieDeclarations]: Found specification of procedure alx_get_supported_speeds [2021-11-25 20:04:52,648 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_get_supported_speeds [2021-11-25 20:04:52,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 20:04:52,648 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 20:04:52,648 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_macaddr [2021-11-25 20:04:52,648 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_macaddr [2021-11-25 20:04:52,648 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_mem32 [2021-11-25 20:04:52,649 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_mem32 [2021-11-25 20:04:52,649 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-25 20:04:52,649 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-25 20:04:52,649 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-25 20:04:52,649 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-25 20:04:52,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-25 20:04:52,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-25 20:04:52,650 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2021-11-25 20:04:52,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2021-11-25 20:04:52,650 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-25 20:04:52,650 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-25 20:04:52,651 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-25 20:04:52,654 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-25 20:04:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:04:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-25 20:04:52,655 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-25 20:04:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reinit_rings [2021-11-25 20:04:52,655 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reinit_rings [2021-11-25 20:04:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_reg [2021-11-25 20:04:52,655 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_reg [2021-11-25 20:04:52,656 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-25 20:04:52,657 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-25 20:04:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_buffers [2021-11-25 20:04:52,657 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_buffers [2021-11-25 20:04:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-25 20:04:52,658 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-25 20:04:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:04:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_lock_of_alx_priv [2021-11-25 20:04:52,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_lock_of_alx_priv [2021-11-25 20:04:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 20:04:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure alx_wait_mdio_idle [2021-11-25 20:04:52,658 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_wait_mdio_idle [2021-11-25 20:04:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-25 20:04:52,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-25 20:04:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-25 20:04:52,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-25 20:04:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_handle [2021-11-25 20:04:52,659 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_handle [2021-11-25 20:04:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-25 20:04:52,659 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-25 20:04:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-25 20:04:52,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-25 20:04:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 20:04:52,660 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 20:04:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-25 20:04:52,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-25 20:04:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 20:04:52,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 20:04:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-25 20:04:52,661 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-25 20:04:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_lock_of_alx_priv [2021-11-25 20:04:52,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_lock_of_alx_priv [2021-11-25 20:04:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_88 [2021-11-25 20:04:52,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_88 [2021-11-25 20:04:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_alx_driver_exit_15_2 [2021-11-25 20:04:52,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_alx_driver_exit_15_2 [2021-11-25 20:04:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-25 20:04:52,662 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-25 20:04:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-25 20:04:52,662 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-25 20:04:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_63 [2021-11-25 20:04:52,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_63 [2021-11-25 20:04:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure alx_is_rev_a [2021-11-25 20:04:52,663 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_is_rev_a [2021-11-25 20:04:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-25 20:04:52,663 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-25 20:04:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_core [2021-11-25 20:04:52,663 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_core [2021-11-25 20:04:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 20:04:52,663 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 20:04:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_ext [2021-11-25 20:04:52,664 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_ext [2021-11-25 20:04:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:04:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 20:04:52,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 20:04:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure alx_post_phy_link [2021-11-25 20:04:52,664 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_post_phy_link [2021-11-25 20:04:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-25 20:04:52,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-25 20:04:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reinit [2021-11-25 20:04:52,665 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reinit [2021-11-25 20:04:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure alx_tpd_avail [2021-11-25 20:04:52,665 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_tpd_avail [2021-11-25 20:04:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure alx_setup_speed_duplex [2021-11-25 20:04:52,665 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_setup_speed_duplex [2021-11-25 20:04:52,666 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-25 20:04:52,666 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-25 20:04:52,666 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_stop [2021-11-25 20:04:52,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_stop [2021-11-25 20:04:52,666 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-25 20:04:52,666 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-25 20:04:52,666 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-11-25 20:04:52,666 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-11-25 20:04:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure alx_enable_aspm [2021-11-25 20:04:52,667 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_enable_aspm [2021-11-25 20:04:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure alx_set_rx_mode [2021-11-25 20:04:52,667 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_set_rx_mode [2021-11-25 20:04:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_revision [2021-11-25 20:04:52,667 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_revision [2021-11-25 20:04:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_set_rx_mode [2021-11-25 20:04:52,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_set_rx_mode [2021-11-25 20:04:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_89 [2021-11-25 20:04:52,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_89 [2021-11-25 20:04:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_write_phy_reg [2021-11-25 20:04:52,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_write_phy_reg [2021-11-25 20:04:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-25 20:04:52,668 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-25 20:04:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-25 20:04:52,668 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-25 20:04:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 20:04:52,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 20:04:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-25 20:04:52,669 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-25 20:04:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-11-25 20:04:52,669 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-11-25 20:04:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure alx_configure [2021-11-25 20:04:52,670 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_configure [2021-11-25 20:04:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_phy [2021-11-25 20:04:52,670 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_phy [2021-11-25 20:04:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2021-11-25 20:04:52,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2021-11-25 20:04:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-25 20:04:52,670 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-25 20:04:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-25 20:04:52,671 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-25 20:04:52,671 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-25 20:04:52,671 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-25 20:04:52,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:04:52,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 20:04:52,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 20:04:52,671 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le64 [2021-11-25 20:04:52,671 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le64 [2021-11-25 20:04:52,672 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_mac [2021-11-25 20:04:52,672 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_mac [2021-11-25 20:04:53,779 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:04:53,788 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:04:53,968 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 20:05:03,301 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 20:05:03,513 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:05:06,092 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:05:06,093 INFO L301 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-25 20:05:06,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:05:06 BoogieIcfgContainer [2021-11-25 20:05:06,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:05:06,101 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:05:06,101 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:05:06,104 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:05:06,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:04:45" (1/3) ... [2021-11-25 20:05:06,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293ecc3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:05:06, skipping insertion in model container [2021-11-25 20:05:06,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:04:51" (2/3) ... [2021-11-25 20:05:06,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293ecc3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:05:06, skipping insertion in model container [2021-11-25 20:05:06,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:05:06" (3/3) ... [2021-11-25 20:05:06,109 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i [2021-11-25 20:05:06,117 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:05:06,117 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-25 20:05:06,185 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:05:06,200 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 20:05:06,205 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-25 20:05:06,290 INFO L276 IsEmpty]: Start isEmpty. Operand has 2384 states, 1351 states have (on average 1.2672094744633604) internal successors, (1712), 1397 states have internal predecessors, (1712), 866 states have call successors, (866), 168 states have call predecessors, (866), 167 states have return successors, (857), 842 states have call predecessors, (857), 857 states have call successors, (857) [2021-11-25 20:05:06,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-25 20:05:06,317 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:05:06,318 INFO L514 BasicCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:05:06,318 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 20:05:06,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:05:06,324 INFO L85 PathProgramCache]: Analyzing trace with hash 2025811816, now seen corresponding path program 1 times [2021-11-25 20:05:06,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:05:06,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766719102] [2021-11-25 20:05:06,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:05:06,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:05:06,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:05:07,232 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2021-11-25 20:05:07,233 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:05:07,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766719102] [2021-11-25 20:05:07,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766719102] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:05:07,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:05:07,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:05:07,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058816466] [2021-11-25 20:05:07,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:05:07,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:05:07,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:05:07,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:05:07,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:05:07,275 INFO L87 Difference]: Start difference. First operand has 2384 states, 1351 states have (on average 1.2672094744633604) internal successors, (1712), 1397 states have internal predecessors, (1712), 866 states have call successors, (866), 168 states have call predecessors, (866), 167 states have return successors, (857), 842 states have call predecessors, (857), 857 states have call successors, (857) Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-25 20:05:09,910 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 20:05:13,385 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 20:05:13,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:05:13,763 INFO L93 Difference]: Finished difference Result 6802 states and 10076 transitions. [2021-11-25 20:05:13,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:05:13,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 181 [2021-11-25 20:05:13,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:05:13,816 INFO L225 Difference]: With dead ends: 6802 [2021-11-25 20:05:13,817 INFO L226 Difference]: Without dead ends: 4438 [2021-11-25 20:05:13,838 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 20:05:13,842 INFO L933 BasicCegarLoop]: 3711 mSDtfsCounter, 3019 mSDsluCounter, 3335 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3019 SdHoareTripleChecker+Valid, 6642 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:05:13,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3019 Valid, 6642 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 847 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2021-11-25 20:05:13,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4438 states. [2021-11-25 20:05:14,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4438 to 4432. [2021-11-25 20:05:14,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4432 states, 2522 states have (on average 1.2593180015860428) internal successors, (3176), 2602 states have internal predecessors, (3176), 1586 states have call successors, (1586), 322 states have call predecessors, (1586), 321 states have return successors, (1582), 1559 states have call predecessors, (1582), 1582 states have call successors, (1582) [2021-11-25 20:05:14,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4432 states to 4432 states and 6344 transitions. [2021-11-25 20:05:14,397 INFO L78 Accepts]: Start accepts. Automaton has 4432 states and 6344 transitions. Word has length 181 [2021-11-25 20:05:14,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:05:14,399 INFO L470 AbstractCegarLoop]: Abstraction has 4432 states and 6344 transitions. [2021-11-25 20:05:14,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-25 20:05:14,399 INFO L276 IsEmpty]: Start isEmpty. Operand 4432 states and 6344 transitions. [2021-11-25 20:05:14,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-11-25 20:05:14,404 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:05:14,404 INFO L514 BasicCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:05:14,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 20:05:14,405 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 20:05:14,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:05:14,405 INFO L85 PathProgramCache]: Analyzing trace with hash -4101605, now seen corresponding path program 1 times [2021-11-25 20:05:14,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:05:14,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699776107] [2021-11-25 20:05:14,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:05:14,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:05:14,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:05:14,868 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2021-11-25 20:05:14,868 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:05:14,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699776107] [2021-11-25 20:05:14,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699776107] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:05:14,869 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:05:14,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 20:05:14,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308408674] [2021-11-25 20:05:14,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:05:14,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 20:05:14,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:05:14,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 20:05:14,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:05:14,872 INFO L87 Difference]: Start difference. First operand 4432 states and 6344 transitions. Second operand has 6 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-25 20:05:19,093 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 20:05:26,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:05:26,606 INFO L93 Difference]: Finished difference Result 11997 states and 17051 transitions. [2021-11-25 20:05:26,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:05:26,607 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 182 [2021-11-25 20:05:26,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:05:26,677 INFO L225 Difference]: With dead ends: 11997 [2021-11-25 20:05:26,677 INFO L226 Difference]: Without dead ends: 7598 [2021-11-25 20:05:26,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:05:26,704 INFO L933 BasicCegarLoop]: 4320 mSDtfsCounter, 7082 mSDsluCounter, 8778 mSDsCounter, 0 mSdLazyCounter, 4112 mSolverCounterSat, 1254 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7226 SdHoareTripleChecker+Valid, 11847 SdHoareTripleChecker+Invalid, 5367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1254 IncrementalHoareTripleChecker+Valid, 4112 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:05:26,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7226 Valid, 11847 Invalid, 5367 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1254 Valid, 4112 Invalid, 1 Unknown, 0 Unchecked, 11.1s Time] [2021-11-25 20:05:26,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7598 states. [2021-11-25 20:05:27,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7598 to 7516. [2021-11-25 20:05:27,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7516 states, 4253 states have (on average 1.2532330119915354) internal successors, (5330), 4396 states have internal predecessors, (5330), 2650 states have call successors, (2650), 613 states have call predecessors, (2650), 610 states have return successors, (2650), 2592 states have call predecessors, (2650), 2646 states have call successors, (2650) [2021-11-25 20:05:27,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7516 states to 7516 states and 10630 transitions. [2021-11-25 20:05:27,198 INFO L78 Accepts]: Start accepts. Automaton has 7516 states and 10630 transitions. Word has length 182 [2021-11-25 20:05:27,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:05:27,199 INFO L470 AbstractCegarLoop]: Abstraction has 7516 states and 10630 transitions. [2021-11-25 20:05:27,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-25 20:05:27,200 INFO L276 IsEmpty]: Start isEmpty. Operand 7516 states and 10630 transitions. [2021-11-25 20:05:27,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-25 20:05:27,204 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:05:27,204 INFO L514 BasicCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:05:27,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 20:05:27,204 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 20:05:27,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:05:27,205 INFO L85 PathProgramCache]: Analyzing trace with hash -96435328, now seen corresponding path program 1 times [2021-11-25 20:05:27,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:05:27,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759971935] [2021-11-25 20:05:27,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:05:27,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:05:27,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:05:27,584 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2021-11-25 20:05:27,585 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:05:27,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759971935] [2021-11-25 20:05:27,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759971935] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:05:27,585 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:05:27,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:05:27,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748815531] [2021-11-25 20:05:27,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:05:27,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:05:27,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:05:27,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:05:27,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:05:27,588 INFO L87 Difference]: Start difference. First operand 7516 states and 10630 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-25 20:05:30,263 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 20:05:32,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:05:32,894 INFO L93 Difference]: Finished difference Result 22237 states and 31554 transitions. [2021-11-25 20:05:32,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:05:32,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 192 [2021-11-25 20:05:32,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:05:33,021 INFO L225 Difference]: With dead ends: 22237 [2021-11-25 20:05:33,021 INFO L226 Difference]: Without dead ends: 14754 [2021-11-25 20:05:33,064 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 20:05:33,065 INFO L933 BasicCegarLoop]: 4107 mSDtfsCounter, 3056 mSDsluCounter, 3373 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3056 SdHoareTripleChecker+Valid, 7071 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:05:33,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3056 Valid, 7071 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 910 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2021-11-25 20:05:33,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14754 states. [2021-11-25 20:05:34,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14754 to 14715. [2021-11-25 20:05:34,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14715 states, 8340 states have (on average 1.2526378896882493) internal successors, (10447), 8619 states have internal predecessors, (10447), 5169 states have call successors, (5169), 1208 states have call predecessors, (5169), 1203 states have return successors, (5289), 5058 states have call predecessors, (5289), 5165 states have call successors, (5289) [2021-11-25 20:05:34,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14715 states to 14715 states and 20905 transitions. [2021-11-25 20:05:34,125 INFO L78 Accepts]: Start accepts. Automaton has 14715 states and 20905 transitions. Word has length 192 [2021-11-25 20:05:34,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:05:34,126 INFO L470 AbstractCegarLoop]: Abstraction has 14715 states and 20905 transitions. [2021-11-25 20:05:34,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-25 20:05:34,128 INFO L276 IsEmpty]: Start isEmpty. Operand 14715 states and 20905 transitions. [2021-11-25 20:05:34,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-25 20:05:34,138 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:05:34,138 INFO L514 BasicCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:05:34,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 20:05:34,139 INFO L402 AbstractCegarLoop]: === Iteration 4 === 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 20:05:34,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:05:34,140 INFO L85 PathProgramCache]: Analyzing trace with hash -261673072, now seen corresponding path program 1 times [2021-11-25 20:05:34,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:05:34,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070300049] [2021-11-25 20:05:34,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:05:34,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:05:34,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:05:34,504 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2021-11-25 20:05:34,504 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:05:34,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070300049] [2021-11-25 20:05:34,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070300049] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:05:34,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:05:34,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:05:34,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661637851] [2021-11-25 20:05:34,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:05:34,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:05:34,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:05:34,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:05:34,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:05:34,508 INFO L87 Difference]: Start difference. First operand 14715 states and 20905 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-25 20:05:37,288 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 20:05:40,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:05:40,161 INFO L93 Difference]: Finished difference Result 43746 states and 62499 transitions. [2021-11-25 20:05:40,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:05:40,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 192 [2021-11-25 20:05:40,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:05:40,320 INFO L225 Difference]: With dead ends: 43746 [2021-11-25 20:05:40,320 INFO L226 Difference]: Without dead ends: 29064 [2021-11-25 20:05:40,392 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 20:05:40,393 INFO L933 BasicCegarLoop]: 4118 mSDtfsCounter, 3057 mSDsluCounter, 3373 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3057 SdHoareTripleChecker+Valid, 7082 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:05:40,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3057 Valid, 7082 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 912 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2021-11-25 20:05:40,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29064 states. [2021-11-25 20:05:42,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29064 to 29017. [2021-11-25 20:05:42,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29017 states, 16466 states have (on average 1.2520952265273897) internal successors, (20617), 17017 states have internal predecessors, (20617), 10175 states have call successors, (10175), 2382 states have call predecessors, (10175), 2373 states have return successors, (10759), 9958 states have call predecessors, (10759), 10171 states have call successors, (10759) [2021-11-25 20:05:42,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29017 states to 29017 states and 41551 transitions. [2021-11-25 20:05:42,511 INFO L78 Accepts]: Start accepts. Automaton has 29017 states and 41551 transitions. Word has length 192 [2021-11-25 20:05:42,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:05:42,512 INFO L470 AbstractCegarLoop]: Abstraction has 29017 states and 41551 transitions. [2021-11-25 20:05:42,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-25 20:05:42,512 INFO L276 IsEmpty]: Start isEmpty. Operand 29017 states and 41551 transitions. [2021-11-25 20:05:42,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-25 20:05:42,517 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:05:42,517 INFO L514 BasicCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:05:42,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 20:05:42,518 INFO L402 AbstractCegarLoop]: === Iteration 5 === 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 20:05:42,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:05:42,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1656578894, now seen corresponding path program 1 times [2021-11-25 20:05:42,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:05:42,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531659362] [2021-11-25 20:05:42,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:05:42,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:05:42,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:05:42,837 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2021-11-25 20:05:42,837 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:05:42,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531659362] [2021-11-25 20:05:42,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531659362] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:05:42,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:05:42,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:05:42,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30275768] [2021-11-25 20:05:42,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:05:42,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:05:42,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:05:42,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:05:42,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:05:42,840 INFO L87 Difference]: Start difference. First operand 29017 states and 41551 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-25 20:05:46,771 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 20:05:50,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:05:50,888 INFO L93 Difference]: Finished difference Result 84864 states and 121021 transitions. [2021-11-25 20:05:50,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:05:50,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 193 [2021-11-25 20:05:50,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:05:51,206 INFO L225 Difference]: With dead ends: 84864 [2021-11-25 20:05:51,206 INFO L226 Difference]: Without dead ends: 55880 [2021-11-25 20:05:51,426 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 20:05:51,430 INFO L933 BasicCegarLoop]: 4080 mSDtfsCounter, 2871 mSDsluCounter, 3269 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2871 SdHoareTripleChecker+Valid, 6962 SdHoareTripleChecker+Invalid, 1025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:05:51,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2871 Valid, 6962 Invalid, 1025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 995 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2021-11-25 20:05:51,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55880 states. [2021-11-25 20:05:54,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55880 to 55817. [2021-11-25 20:05:54,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55817 states, 31454 states have (on average 1.2375214599097095) internal successors, (38925), 32585 states have internal predecessors, (38925), 19643 states have call successors, (19643), 4734 states have call predecessors, (19643), 4717 states have return successors, (20427), 19178 states have call predecessors, (20427), 19639 states have call successors, (20427) [2021-11-25 20:05:54,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55817 states to 55817 states and 78995 transitions. [2021-11-25 20:05:54,898 INFO L78 Accepts]: Start accepts. Automaton has 55817 states and 78995 transitions. Word has length 193 [2021-11-25 20:05:54,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:05:54,902 INFO L470 AbstractCegarLoop]: Abstraction has 55817 states and 78995 transitions. [2021-11-25 20:05:54,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-25 20:05:54,902 INFO L276 IsEmpty]: Start isEmpty. Operand 55817 states and 78995 transitions. [2021-11-25 20:05:54,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-25 20:05:54,907 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:05:54,907 INFO L514 BasicCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:05:54,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 20:05:54,908 INFO L402 AbstractCegarLoop]: === Iteration 6 === 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 20:05:54,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:05:54,909 INFO L85 PathProgramCache]: Analyzing trace with hash -461016, now seen corresponding path program 1 times [2021-11-25 20:05:54,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:05:54,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633400951] [2021-11-25 20:05:54,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:05:54,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:05:55,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:05:55,487 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2021-11-25 20:05:55,488 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:05:55,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633400951] [2021-11-25 20:05:55,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633400951] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:05:55,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:05:55,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:05:55,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525254834] [2021-11-25 20:05:55,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:05:55,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:05:55,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:05:55,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:05:55,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:05:55,491 INFO L87 Difference]: Start difference. First operand 55817 states and 78995 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-25 20:05:59,173 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 20:06:02,544 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 20:06:05,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:06:05,945 INFO L93 Difference]: Finished difference Result 144041 states and 203480 transitions. [2021-11-25 20:06:05,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:06:05,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 192 [2021-11-25 20:06:05,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:06:06,429 INFO L225 Difference]: With dead ends: 144041 [2021-11-25 20:06:06,429 INFO L226 Difference]: Without dead ends: 88257 [2021-11-25 20:06:06,846 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 20:06:06,848 INFO L933 BasicCegarLoop]: 4026 mSDtfsCounter, 2774 mSDsluCounter, 3295 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 18 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2774 SdHoareTripleChecker+Valid, 6924 SdHoareTripleChecker+Invalid, 979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:06:06,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2774 Valid, 6924 Invalid, 979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 959 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2021-11-25 20:06:06,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88257 states. [2021-11-25 20:06:10,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88257 to 88181. [2021-11-25 20:06:10,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88181 states, 49976 states have (on average 1.2268688970705939) internal successors, (61314), 51639 states have internal predecessors, (61314), 30667 states have call successors, (30667), 7584 states have call predecessors, (30667), 7535 states have return successors, (31952), 29951 states have call predecessors, (31952), 30663 states have call successors, (31952) [2021-11-25 20:06:11,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88181 states to 88181 states and 123933 transitions. [2021-11-25 20:06:11,147 INFO L78 Accepts]: Start accepts. Automaton has 88181 states and 123933 transitions. Word has length 192 [2021-11-25 20:06:11,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:06:11,148 INFO L470 AbstractCegarLoop]: Abstraction has 88181 states and 123933 transitions. [2021-11-25 20:06:11,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-25 20:06:11,148 INFO L276 IsEmpty]: Start isEmpty. Operand 88181 states and 123933 transitions. [2021-11-25 20:06:11,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-11-25 20:06:11,153 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:06:11,153 INFO L514 BasicCegarLoop]: trace histogram [18, 16, 16, 16, 16, 16, 16, 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] [2021-11-25 20:06:11,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 20:06:11,153 INFO L402 AbstractCegarLoop]: === Iteration 7 === 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 20:06:11,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:06:11,154 INFO L85 PathProgramCache]: Analyzing trace with hash -286169342, now seen corresponding path program 1 times [2021-11-25 20:06:11,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:06:11,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234889460] [2021-11-25 20:06:11,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:06:11,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:06:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:06:11,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1034 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1026 trivial. 0 not checked. [2021-11-25 20:06:11,539 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:06:11,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234889460] [2021-11-25 20:06:11,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234889460] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:06:11,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:06:11,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 20:06:11,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684904848] [2021-11-25 20:06:11,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:06:11,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 20:06:11,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:06:11,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 20:06:11,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:06:11,541 INFO L87 Difference]: Start difference. First operand 88181 states and 123933 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-25 20:06:19,318 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 20:06:24,708 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 20:06:32,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:06:32,911 INFO L93 Difference]: Finished difference Result 302662 states and 426053 transitions. [2021-11-25 20:06:32,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:06:32,912 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 214 [2021-11-25 20:06:32,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:06:34,248 INFO L225 Difference]: With dead ends: 302662 [2021-11-25 20:06:34,248 INFO L226 Difference]: Without dead ends: 214514 [2021-11-25 20:06:34,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:06:34,552 INFO L933 BasicCegarLoop]: 5150 mSDtfsCounter, 9034 mSDsluCounter, 7224 mSDsCounter, 0 mSdLazyCounter, 4629 mSolverCounterSat, 2972 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9264 SdHoareTripleChecker+Valid, 11130 SdHoareTripleChecker+Invalid, 7603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2972 IncrementalHoareTripleChecker+Valid, 4629 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:06:34,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9264 Valid, 11130 Invalid, 7603 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2972 Valid, 4629 Invalid, 2 Unknown, 0 Unchecked, 14.7s Time] [2021-11-25 20:06:35,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214514 states. [2021-11-25 20:06:44,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214514 to 214138. [2021-11-25 20:06:44,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214138 states, 121572 states have (on average 1.227642878294344) internal successors, (149247), 125965 states have internal predecessors, (149247), 74490 states have call successors, (74490), 18218 states have call predecessors, (74490), 18073 states have return successors, (77432), 72445 states have call predecessors, (77432), 74486 states have call successors, (77432) [2021-11-25 20:06:46,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214138 states to 214138 states and 301169 transitions. [2021-11-25 20:06:46,207 INFO L78 Accepts]: Start accepts. Automaton has 214138 states and 301169 transitions. Word has length 214 [2021-11-25 20:06:46,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:06:46,208 INFO L470 AbstractCegarLoop]: Abstraction has 214138 states and 301169 transitions. [2021-11-25 20:06:46,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-25 20:06:46,209 INFO L276 IsEmpty]: Start isEmpty. Operand 214138 states and 301169 transitions. [2021-11-25 20:06:46,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-11-25 20:06:46,214 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:06:46,214 INFO L514 BasicCegarLoop]: trace histogram [20, 16, 16, 16, 16, 16, 16, 4, 4, 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] [2021-11-25 20:06:46,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 20:06:46,214 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 20:06:46,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:06:46,215 INFO L85 PathProgramCache]: Analyzing trace with hash 287645897, now seen corresponding path program 1 times [2021-11-25 20:06:46,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:06:46,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423743808] [2021-11-25 20:06:46,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:06:46,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:06:46,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:06:46,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1127 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1127 trivial. 0 not checked. [2021-11-25 20:06:46,657 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:06:46,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423743808] [2021-11-25 20:06:46,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423743808] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:06:46,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:06:46,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:06:46,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976900745] [2021-11-25 20:06:46,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:06:46,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:06:46,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:06:46,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:06:46,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:06:46,661 INFO L87 Difference]: Start difference. First operand 214138 states and 301169 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-25 20:06:50,840 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 []