./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.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_a56d91bb-98b6-4f20-94de-a9cd73d59a09/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56d91bb-98b6-4f20-94de-a9cd73d59a09/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_a56d91bb-98b6-4f20-94de-a9cd73d59a09/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56d91bb-98b6-4f20-94de-a9cd73d59a09/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56d91bb-98b6-4f20-94de-a9cd73d59a09/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_a56d91bb-98b6-4f20-94de-a9cd73d59a09/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 1b84ae01ff77d37e9299320c753590c425a9f784ed44d0a112a3afe6584a446b --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:03:11,919 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:03:11,921 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:03:11,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:03:11,969 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:03:11,970 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:03:11,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:03:11,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:03:11,976 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:03:11,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:03:11,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:03:11,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:03:11,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:03:11,993 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:03:11,994 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:03:11,996 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:03:12,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:03:12,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:03:12,005 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:03:12,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:03:12,012 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:03:12,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:03:12,017 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:03:12,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:03:12,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:03:12,024 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:03:12,025 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:03:12,026 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:03:12,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:03:12,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:03:12,029 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:03:12,030 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:03:12,031 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:03:12,033 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:03:12,034 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:03:12,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:03:12,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:03:12,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:03:12,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:03:12,036 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:03:12,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:03:12,038 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56d91bb-98b6-4f20-94de-a9cd73d59a09/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 19:03:12,078 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:03:12,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:03:12,079 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:03:12,079 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:03:12,086 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:03:12,086 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:03:12,086 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:03:12,087 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:03:12,087 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:03:12,087 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:03:12,088 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:03:12,088 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:03:12,088 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:03:12,089 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:03:12,089 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:03:12,089 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:03:12,089 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:03:12,090 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:03:12,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:03:12,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:03:12,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:03:12,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:03:12,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:03:12,092 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:03:12,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:03:12,092 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:03:12,093 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:03:12,093 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:03:12,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:03:12,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:03:12,094 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:03:12,094 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:03:12,094 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:03:12,094 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:03:12,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:03:12,095 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:03:12,095 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:03:12,095 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:03:12,095 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_a56d91bb-98b6-4f20-94de-a9cd73d59a09/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56d91bb-98b6-4f20-94de-a9cd73d59a09/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b84ae01ff77d37e9299320c753590c425a9f784ed44d0a112a3afe6584a446b [2021-11-25 19:03:12,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:03:12,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:03:12,425 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:03:12,427 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:03:12,428 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:03:12,430 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56d91bb-98b6-4f20-94de-a9cd73d59a09/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i [2021-11-25 19:03:12,519 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56d91bb-98b6-4f20-94de-a9cd73d59a09/bin/utaipan-eEHZpOm5b7/data/b480665e2/129f32555125419dbff2b8f60ff54496/FLAG9d3b7bb4c [2021-11-25 19:03:13,759 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:03:13,759 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56d91bb-98b6-4f20-94de-a9cd73d59a09/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i [2021-11-25 19:03:13,857 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56d91bb-98b6-4f20-94de-a9cd73d59a09/bin/utaipan-eEHZpOm5b7/data/b480665e2/129f32555125419dbff2b8f60ff54496/FLAG9d3b7bb4c [2021-11-25 19:03:14,027 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56d91bb-98b6-4f20-94de-a9cd73d59a09/bin/utaipan-eEHZpOm5b7/data/b480665e2/129f32555125419dbff2b8f60ff54496 [2021-11-25 19:03:14,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:03:14,034 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:03:14,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:03:14,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:03:14,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:03:14,043 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:03:14" (1/1) ... [2021-11-25 19:03:14,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b1d3a0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:14, skipping insertion in model container [2021-11-25 19:03:14,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:03:14" (1/1) ... [2021-11-25 19:03:14,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:03:14,311 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:03:24,398 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_a56d91bb-98b6-4f20-94de-a9cd73d59a09/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945328,945341] [2021-11-25 19:03:24,400 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_a56d91bb-98b6-4f20-94de-a9cd73d59a09/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945497,945510] [2021-11-25 19:03:24,400 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_a56d91bb-98b6-4f20-94de-a9cd73d59a09/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945664,945677] [2021-11-25 19:03:24,400 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_a56d91bb-98b6-4f20-94de-a9cd73d59a09/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945832,945845] [2021-11-25 19:03:24,433 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:03:24,502 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:03:25,476 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_a56d91bb-98b6-4f20-94de-a9cd73d59a09/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945328,945341] [2021-11-25 19:03:25,477 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_a56d91bb-98b6-4f20-94de-a9cd73d59a09/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945497,945510] [2021-11-25 19:03:25,477 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_a56d91bb-98b6-4f20-94de-a9cd73d59a09/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945664,945677] [2021-11-25 19:03:25,478 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_a56d91bb-98b6-4f20-94de-a9cd73d59a09/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945832,945845] [2021-11-25 19:03:25,492 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:03:26,136 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:03:26,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:26 WrapperNode [2021-11-25 19:03:26,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:03:26,137 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:03:26,137 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:03:26,138 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:03:26,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:26" (1/1) ... [2021-11-25 19:03:26,598 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:26" (1/1) ... [2021-11-25 19:03:27,559 INFO L137 Inliner]: procedures = 856, calls = 16450, calls flagged for inlining = 419, calls inlined = 352, statements flattened = 29361 [2021-11-25 19:03:27,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:03:27,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:03:27,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:03:27,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:03:27,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:26" (1/1) ... [2021-11-25 19:03:27,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:26" (1/1) ... [2021-11-25 19:03:27,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:26" (1/1) ... [2021-11-25 19:03:27,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:26" (1/1) ... [2021-11-25 19:03:28,782 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:26" (1/1) ... [2021-11-25 19:03:28,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:26" (1/1) ... [2021-11-25 19:03:28,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:26" (1/1) ... [2021-11-25 19:03:29,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:03:29,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:03:29,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:03:29,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:03:29,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:26" (1/1) ... [2021-11-25 19:03:29,191 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:03:29,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56d91bb-98b6-4f20-94de-a9cd73d59a09/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:03:29,215 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56d91bb-98b6-4f20-94de-a9cd73d59a09/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:03:29,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56d91bb-98b6-4f20-94de-a9cd73d59a09/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:03:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_fc_after_link_up [2021-11-25 19:03:29,270 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_fc_after_link_up [2021-11-25 19:03:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-11-25 19:03:29,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-11-25 19:03:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_collision_dist [2021-11-25 19:03:29,271 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_collision_dist [2021-11-25 19:03:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_ee_clk [2021-11-25 19:03:29,271 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_ee_clk [2021-11-25 19:03:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2021-11-25 19:03:29,271 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2021-11-25 19:03:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-11-25 19:03:29,272 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-11-25 19:03:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure reg_pattern_test [2021-11-25 19:03:29,272 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_pattern_test [2021-11-25 19:03:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-25 19:03:29,272 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-25 19:03:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-11-25 19:03:29,273 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-11-25 19:03:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 19:03:29,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 19:03:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_unmap_and_free_tx_resource [2021-11-25 19:03:29,273 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_unmap_and_free_tx_resource [2021-11-25 19:03:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-25 19:03:29,274 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-25 19:03:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-25 19:03:29,274 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-25 19:03:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_rctl [2021-11-25 19:03:29,275 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_rctl [2021-11-25 19:03:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-25 19:03:29,275 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-25 19:03:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2021-11-25 19:03:29,276 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2021-11-25 19:03:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset [2021-11-25 19:03:29,276 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset [2021-11-25 19:03:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2021-11-25 19:03:29,276 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2021-11-25 19:03:29,277 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-25 19:03:29,277 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-25 19:03:29,277 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-25 19:03:29,277 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-25 19:03:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-25 19:03:29,278 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-25 19:03:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-25 19:03:29,279 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-25 19:03:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg [2021-11-25 19:03:29,279 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg [2021-11-25 19:03:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_speed_and_duplex [2021-11-25 19:03:29,280 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_speed_and_duplex [2021-11-25 19:03:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_bit [2021-11-25 19:03:29,280 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_bit [2021-11-25 19:03:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-25 19:03:29,280 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-25 19:03:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-25 19:03:29,281 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-25 19:03:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-25 19:03:29,282 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-25 19:03:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link [2021-11-25 19:03:29,282 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link [2021-11-25 19:03:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_irq [2021-11-25 19:03:29,282 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_irq [2021-11-25 19:03:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-11-25 19:03:29,283 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-11-25 19:03:29,283 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_vlan_mode [2021-11-25 19:03:29,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_vlan_mode [2021-11-25 19:03:29,283 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 19:03:29,283 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 19:03:29,284 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_dsp_after_link_change [2021-11-25 19:03:29,284 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_dsp_after_link_change [2021-11-25 19:03:29,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 19:03:29,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 19:03:29,285 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_maybe_stop_tx [2021-11-25 19:03:29,285 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_maybe_stop_tx [2021-11-25 19:03:29,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:03:29,286 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2021-11-25 19:03:29,286 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2021-11-25 19:03:29,286 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_used [2021-11-25 19:03:29,286 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_used [2021-11-25 19:03:29,287 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_force_mac_fc [2021-11-25 19:03:29,287 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_force_mac_fc [2021-11-25 19:03:29,287 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-25 19:03:29,287 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-25 19:03:29,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 19:03:29,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 19:03:29,288 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_leave_82542_rst [2021-11-25 19:03:29,288 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_leave_82542_rst [2021-11-25 19:03:29,288 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-25 19:03:29,289 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-25 19:03:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_tx_resources [2021-11-25 19:03:29,290 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_tx_resources [2021-11-25 19:03:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-25 19:03:29,290 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-25 19:03:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure reg_set_and_check [2021-11-25 19:03:29,290 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_set_and_check [2021-11-25 19:03:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-25 19:03:29,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-25 19:03:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 19:03:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_netpoll [2021-11-25 19:03:29,291 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_netpoll [2021-11-25 19:03:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:03:29,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 19:03:29,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 19:03:29,292 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 19:03:29,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 19:03:29,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 19:03:29,293 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_rx_mode [2021-11-25 19:03:29,294 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_rx_mode [2021-11-25 19:03:29,297 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 19:03:29,297 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-25 19:03:29,297 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-25 19:03:29,297 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_hw_reset [2021-11-25 19:03:29,298 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_hw_reset [2021-11-25 19:03:29,298 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-25 19:03:29,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-25 19:03:29,299 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_ee_bits [2021-11-25 19:03:29,299 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_ee_bits [2021-11-25 19:03:29,306 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 19:03:29,306 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 19:03:29,306 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_ee_clk [2021-11-25 19:03:29,306 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_ee_clk [2021-11-25 19:03:29,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-25 19:03:29,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-25 19:03:29,307 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2021-11-25 19:03:29,307 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2021-11-25 19:03:29,307 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2021-11-25 19:03:29,307 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2021-11-25 19:03:29,308 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-25 19:03:29,308 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-25 19:03:29,308 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom [2021-11-25 19:03:29,308 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom [2021-11-25 19:03:29,308 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_enter_82542_rst [2021-11-25 19:03:29,308 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_enter_82542_rst [2021-11-25 19:03:29,309 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-11-25 19:03:29,309 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-11-25 19:03:29,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:03:29,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:03:29,309 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_down_phy [2021-11-25 19:03:29,309 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_down_phy [2021-11-25 19:03:29,309 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2021-11-25 19:03:29,310 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2021-11-25 19:03:29,310 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_spi_eeprom_ready [2021-11-25 19:03:29,310 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_spi_eeprom_ready [2021-11-25 19:03:29,310 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_clear_mwi [2021-11-25 19:03:29,310 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_clear_mwi [2021-11-25 19:03:29,310 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-25 19:03:29,311 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-25 19:03:29,311 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_up_phy [2021-11-25 19:03:29,311 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_up_phy [2021-11-25 19:03:29,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 19:03:29,311 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 19:03:29,311 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 19:03:29,312 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg_ex [2021-11-25 19:03:29,312 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg_ex [2021-11-25 19:03:29,312 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-25 19:03:29,312 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-25 19:03:29,312 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-25 19:03:29,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-25 19:03:29,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-25 19:03:29,313 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_resume [2021-11-25 19:03:29,313 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_resume [2021-11-25 19:03:29,313 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-25 19:03:29,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-25 19:03:29,314 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-25 19:03:29,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-25 19:03:29,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 19:03:29,314 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 19:03:29,314 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_mdi_clk [2021-11-25 19:03:29,315 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_mdi_clk [2021-11-25 19:03:29,315 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_mac_to_phy [2021-11-25 19:03:29,315 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_mac_to_phy [2021-11-25 19:03:29,315 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2021-11-25 19:03:29,315 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2021-11-25 19:03:29,315 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-25 19:03:29,315 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-25 19:03:29,316 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset_clk_and_crs [2021-11-25 19:03:29,316 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset_clk_and_crs [2021-11-25 19:03:29,316 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-25 19:03:29,316 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-25 19:03:29,316 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-25 19:03:29,316 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-25 19:03:29,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:03:29,317 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-25 19:03:29,317 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-25 19:03:29,317 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_regs_len [2021-11-25 19:03:29,317 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_regs_len [2021-11-25 19:03:29,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 19:03:29,318 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-11-25 19:03:29,318 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-11-25 19:03:29,318 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_tx_resources [2021-11-25 19:03:29,318 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_tx_resources [2021-11-25 19:03:29,318 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_setup_autoneg [2021-11-25 19:03:29,318 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_setup_autoneg [2021-11-25 19:03:29,318 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_mng_vlan [2021-11-25 19:03:29,319 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_mng_vlan [2021-11-25 19:03:29,319 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_filter_on_off [2021-11-25 19:03:29,319 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_filter_on_off [2021-11-25 19:03:29,319 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-25 19:03:29,319 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-25 19:03:29,319 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_nway_reset [2021-11-25 19:03:29,320 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_nway_reset [2021-11-25 19:03:29,320 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 19:03:29,320 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 19:03:29,320 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-25 19:03:29,320 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-25 19:03:29,320 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_all_rx_rings [2021-11-25 19:03:29,321 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_all_rx_rings [2021-11-25 19:03:29,321 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reinit_locked [2021-11-25 19:03:29,321 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reinit_locked [2021-11-25 19:03:29,321 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_bit [2021-11-25 19:03:29,321 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_bit [2021-11-25 19:03:29,321 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_phy_reg [2021-11-25 19:03:29,322 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_phy_reg [2021-11-25 19:03:29,322 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_rx_resources [2021-11-25 19:03:29,322 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_rx_resources [2021-11-25 19:03:29,322 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-25 19:03:29,322 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-25 19:03:29,322 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_copper_link_rtl_setup [2021-11-25 19:03:29,322 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_copper_link_rtl_setup [2021-11-25 19:03:29,323 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_desc_rings [2021-11-25 19:03:29,323 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_desc_rings [2021-11-25 19:03:29,323 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-11-25 19:03:29,323 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-11-25 19:03:29,323 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-25 19:03:29,323 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-25 19:03:29,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:03:29,324 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_64k_bound [2021-11-25 19:03:29,324 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_64k_bound [2021-11-25 19:03:29,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 19:03:29,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 19:03:29,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_88 [2021-11-25 19:03:29,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_88 [2021-11-25 19:03:29,325 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_request_irq [2021-11-25 19:03:29,325 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_request_irq [2021-11-25 19:03:29,326 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-25 19:03:29,329 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-25 19:03:29,330 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_eeprom [2021-11-25 19:03:29,330 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_eeprom [2021-11-25 19:03:29,330 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw [2021-11-25 19:03:29,330 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw [2021-11-25 19:03:29,330 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_disable [2021-11-25 19:03:29,330 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_disable [2021-11-25 19:03:29,331 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2021-11-25 19:03:29,331 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2021-11-25 19:03:29,331 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_tx_ring [2021-11-25 19:03:29,332 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_tx_ring [2021-11-25 19:03:29,332 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-25 19:03:29,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-25 19:03:29,332 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_manageability [2021-11-25 19:03:29,333 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_manageability [2021-11-25 19:03:29,333 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-25 19:03:29,333 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-25 19:03:29,333 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-25 19:03:29,333 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-25 19:03:29,333 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-25 19:03:29,333 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-11-25 19:03:29,334 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-11-25 19:03:29,334 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_rx_ring [2021-11-25 19:03:29,334 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_rx_ring [2021-11-25 19:03:29,334 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-25 19:03:29,334 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-25 19:03:29,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_91 [2021-11-25 19:03:29,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_91 [2021-11-25 19:03:29,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 19:03:29,335 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 19:03:29,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_82 [2021-11-25 19:03:29,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_82 [2021-11-25 19:03:29,335 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-25 19:03:29,335 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-25 19:03:29,336 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_eeprom [2021-11-25 19:03:29,336 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_eeprom [2021-11-25 19:03:29,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 19:03:29,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 19:03:29,336 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_manageability [2021-11-25 19:03:29,336 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_manageability [2021-11-25 19:03:29,337 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_in_ee_bits [2021-11-25 19:03:29,337 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_in_ee_bits [2021-11-25 19:03:29,337 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down_and_stop [2021-11-25 19:03:29,337 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down_and_stop [2021-11-25 19:03:29,337 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-25 19:03:29,337 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-25 19:03:29,337 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2021-11-25 19:03:29,338 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2021-11-25 19:03:29,338 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-25 19:03:29,338 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-25 19:03:29,338 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-25 19:03:29,338 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-25 19:03:29,338 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_get_info [2021-11-25 19:03:29,338 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_get_info [2021-11-25 19:03:29,339 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_do_read_eeprom [2021-11-25 19:03:29,339 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_do_read_eeprom [2021-11-25 19:03:29,339 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set [2021-11-25 19:03:29,339 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set [2021-11-25 19:03:29,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_83 [2021-11-25 19:03:29,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_83 [2021-11-25 19:03:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_eeprom_params [2021-11-25 19:03:29,340 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_eeprom_params [2021-11-25 19:03:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2021-11-25 19:03:29,340 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2021-11-25 19:03:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 19:03:29,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 19:03:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-25 19:03:29,341 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-25 19:03:29,341 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-25 19:03:29,341 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-25 19:03:29,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 19:03:29,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 19:03:29,341 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-25 19:03:29,341 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-25 19:03:29,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:03:29,342 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_standby_eeprom [2021-11-25 19:03:29,342 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_standby_eeprom [2021-11-25 19:03:29,342 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure_rx [2021-11-25 19:03:29,342 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure_rx [2021-11-25 19:03:29,342 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_hw_dev [2021-11-25 19:03:29,342 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_hw_dev [2021-11-25 19:03:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_stats [2021-11-25 19:03:29,343 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_stats [2021-11-25 19:03:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_validate_option [2021-11-25 19:03:29,343 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_validate_option [2021-11-25 19:03:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 19:03:29,343 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 19:03:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 19:03:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_link [2021-11-25 19:03:29,344 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_link [2021-11-25 19:03:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset [2021-11-25 19:03:29,344 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset [2021-11-25 19:03:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 19:03:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-25 19:03:29,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-25 19:03:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shutdown [2021-11-25 19:03:29,345 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shutdown [2021-11-25 19:03:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 19:03:29,345 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 19:03:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_disable_receiver [2021-11-25 19:03:29,345 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_disable_receiver [2021-11-25 19:03:29,346 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_kill_vid [2021-11-25 19:03:29,346 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_kill_vid [2021-11-25 19:03:29,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-25 19:03:29,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-25 19:03:29,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-25 19:03:29,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-25 19:03:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2021-11-25 19:03:29,347 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2021-11-25 19:03:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_has_link [2021-11-25 19:03:29,347 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_has_link [2021-11-25 19:03:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-25 19:03:29,347 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-25 19:03:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2021-11-25 19:03:29,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2021-11-25 19:03:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure pci_wake_from_d3 [2021-11-25 19:03:29,348 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_wake_from_d3 [2021-11-25 19:03:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-25 19:03:29,348 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-25 19:03:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-25 19:03:29,348 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-25 19:03:29,349 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 19:03:29,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 19:03:29,349 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_open [2021-11-25 19:03:29,349 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_open [2021-11-25 19:03:29,349 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-11-25 19:03:29,349 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-11-25 19:03:29,349 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_vfta [2021-11-25 19:03:29,350 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_vfta [2021-11-25 19:03:29,350 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_remove [2021-11-25 19:03:29,350 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_remove [2021-11-25 19:03:29,350 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure [2021-11-25 19:03:29,350 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure [2021-11-25 19:03:29,350 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-25 19:03:29,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-25 19:03:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-25 19:03:29,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-25 19:03:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-25 19:03:29,352 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-25 19:03:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_cable_length [2021-11-25 19:03:29,352 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_cable_length [2021-11-25 19:03:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-25 19:03:29,353 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-25 19:03:29,353 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_rx_resources [2021-11-25 19:03:29,353 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_rx_resources [2021-11-25 19:03:29,353 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_add_vid [2021-11-25 19:03:29,353 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_add_vid [2021-11-25 19:03:29,353 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-25 19:03:29,354 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-25 19:03:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_write [2021-11-25 19:03:29,354 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_write [2021-11-25 19:03:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-11-25 19:03:29,354 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-11-25 19:03:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_resume [2021-11-25 19:03:29,354 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_resume [2021-11-25 19:03:29,355 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-25 19:03:29,355 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-25 19:03:29,355 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_acquire_eeprom [2021-11-25 19:03:29,355 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_acquire_eeprom [2021-11-25 19:03:29,355 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-25 19:03:29,355 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-25 19:03:29,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 19:03:29,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 19:03:29,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 19:03:29,356 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-25 19:03:29,356 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-25 19:03:29,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 19:03:29,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 19:03:29,356 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-25 19:03:29,357 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-25 19:03:29,357 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-25 19:03:29,357 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-25 19:03:29,357 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_polarity [2021-11-25 19:03:29,357 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_polarity [2021-11-25 19:03:29,357 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-25 19:03:29,357 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-25 19:03:29,358 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-25 19:03:29,358 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-25 19:03:29,358 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom_len [2021-11-25 19:03:29,358 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom_len [2021-11-25 19:03:29,358 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-25 19:03:29,358 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-25 19:03:29,358 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_rx_resources [2021-11-25 19:03:29,359 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_rx_resources [2021-11-25 19:03:29,359 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2021-11-25 19:03:29,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2021-11-25 19:03:29,359 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_close [2021-11-25 19:03:29,359 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_close [2021-11-25 19:03:29,359 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-25 19:03:29,359 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-25 19:03:29,360 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-25 19:03:29,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-25 19:03:29,360 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-25 19:03:29,360 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-25 19:03:29,360 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-25 19:03:29,360 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-25 19:03:29,360 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-25 19:03:29,361 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-25 19:03:29,361 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2021-11-25 19:03:29,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2021-11-25 19:03:29,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 19:03:29,361 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_media_type [2021-11-25 19:03:29,361 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_media_type [2021-11-25 19:03:29,361 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_eeprom [2021-11-25 19:03:29,362 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_eeprom [2021-11-25 19:03:29,362 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_phy_loopback [2021-11-25 19:03:29,362 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_phy_loopback [2021-11-25 19:03:29,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-25 19:03:29,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-25 19:03:29,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 19:03:29,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 19:03:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-25 19:03:29,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-25 19:03:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_enable [2021-11-25 19:03:29,363 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_enable [2021-11-25 19:03:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_up [2021-11-25 19:03:29,363 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_up [2021-11-25 19:03:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_tx_timeout [2021-11-25 19:03:29,364 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_tx_timeout [2021-11-25 19:03:29,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_87 [2021-11-25 19:03:29,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_87 [2021-11-25 19:03:29,364 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_mdi_clk [2021-11-25 19:03:29,364 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_mdi_clk [2021-11-25 19:03:29,364 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-25 19:03:29,364 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-25 19:03:29,365 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-25 19:03:29,365 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-25 19:03:29,365 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-11-25 19:03:29,365 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-11-25 19:03:29,365 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_eeprom [2021-11-25 19:03:29,365 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_eeprom [2021-11-25 19:03:29,365 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_set_mwi [2021-11-25 19:03:29,366 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_set_mwi [2021-11-25 19:03:29,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_stats_lock_of_e1000_adapter [2021-11-25 19:03:29,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_stats_lock_of_e1000_adapter [2021-11-25 19:03:29,366 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_polarity_reversal_workaround [2021-11-25 19:03:29,366 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_polarity_reversal_workaround [2021-11-25 19:03:29,366 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-25 19:03:29,366 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-25 19:03:29,367 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-25 19:03:29,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-25 19:03:29,367 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 19:03:29,367 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 19:03:29,367 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_link_test [2021-11-25 19:03:29,367 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_link_test [2021-11-25 19:03:29,367 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_mdi_bits [2021-11-25 19:03:29,368 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_mdi_bits [2021-11-25 19:03:29,368 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_spd_dplx [2021-11-25 19:03:29,368 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_spd_dplx [2021-11-25 19:03:29,368 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2021-11-25 19:03:29,368 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2021-11-25 19:03:29,368 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down [2021-11-25 19:03:29,368 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down [2021-11-25 19:03:29,369 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-25 19:03:29,369 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-25 19:03:29,369 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_init_script [2021-11-25 19:03:29,369 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_init_script [2021-11-25 19:03:29,369 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-25 19:03:29,369 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-25 19:03:29,370 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-11-25 19:03:29,370 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-11-25 19:03:29,370 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-25 19:03:29,370 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-25 19:03:29,370 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_shutdown [2021-11-25 19:03:29,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_shutdown [2021-11-25 19:03:29,370 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_tx_resources [2021-11-25 19:03:29,371 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_tx_resources [2021-11-25 19:03:29,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 19:03:29,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 19:03:29,371 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-25 19:03:29,371 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-25 19:03:29,371 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-25 19:03:29,371 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-25 19:03:29,372 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-11-25 19:03:29,372 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-11-25 19:03:29,372 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_wol_exclusion [2021-11-25 19:03:29,372 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_wol_exclusion [2021-11-25 19:03:29,372 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-25 19:03:29,372 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-25 19:03:29,372 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-25 19:03:29,373 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-25 19:03:29,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_e1000_phy_lock [2021-11-25 19:03:29,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_e1000_phy_lock [2021-11-25 19:03:29,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:03:29,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 19:03:29,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 19:03:29,374 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-25 19:03:31,528 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:03:31,533 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:03:32,881 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 19:04:35,500 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:04:43,605 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:04:43,605 INFO L301 CfgBuilder]: Removed 9 assume(true) statements. [2021-11-25 19:04:43,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:04:43 BoogieIcfgContainer [2021-11-25 19:04:43,617 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:04:43,619 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:04:43,619 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:04:43,623 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:04:43,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:03:14" (1/3) ... [2021-11-25 19:04:43,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed92746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:04:43, skipping insertion in model container [2021-11-25 19:04:43,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:03:26" (2/3) ... [2021-11-25 19:04:43,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed92746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:04:43, skipping insertion in model container [2021-11-25 19:04:43,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:04:43" (3/3) ... [2021-11-25 19:04:43,627 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i [2021-11-25 19:04:43,633 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:04:43,633 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-25 19:04:43,723 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:04:43,730 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 19:04:43,732 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-25 19:04:43,878 INFO L276 IsEmpty]: Start isEmpty. Operand has 6607 states, 4197 states have (on average 1.3350011913271385) internal successors, (5603), 4305 states have internal predecessors, (5603), 2159 states have call successors, (2159), 250 states have call predecessors, (2159), 249 states have return successors, (2155), 2142 states have call predecessors, (2155), 2155 states have call successors, (2155) [2021-11-25 19:04:43,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-25 19:04:43,885 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:04:43,886 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-25 19:04:43,886 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 19:04:43,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:04:43,896 INFO L85 PathProgramCache]: Analyzing trace with hash -695351126, now seen corresponding path program 1 times [2021-11-25 19:04:43,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:04:43,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089370490] [2021-11-25 19:04:43,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:04:43,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:04:44,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:04:45,315 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-25 19:04:45,316 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:04:45,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089370490] [2021-11-25 19:04:45,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089370490] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:04:45,321 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:04:45,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:04:45,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673351968] [2021-11-25 19:04:45,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:04:45,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:04:45,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:04:45,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:04:45,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:04:45,387 INFO L87 Difference]: Start difference. First operand has 6607 states, 4197 states have (on average 1.3350011913271385) internal successors, (5603), 4305 states have internal predecessors, (5603), 2159 states have call successors, (2159), 250 states have call predecessors, (2159), 249 states have return successors, (2155), 2142 states have call predecessors, (2155), 2155 states have call successors, (2155) Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-25 19:04:48,423 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 19:04:50,707 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:05:02,257 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:05:03,438 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:05:05,462 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:05:07,496 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:05:09,548 WARN L534 Checker$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 19:05:11,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:05:17,370 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:05:19,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:05:27,452 WARN L534 Checker$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 19:05:29,572 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:05:32,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:05:35,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:05:35,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:05:35,439 INFO L93 Difference]: Finished difference Result 17486 states and 26812 transitions. [2021-11-25 19:05:35,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 19:05:35,446 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 35 [2021-11-25 19:05:35,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:05:35,552 INFO L225 Difference]: With dead ends: 17486 [2021-11-25 19:05:35,552 INFO L226 Difference]: Without dead ends: 10883 [2021-11-25 19:05:35,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:05:35,671 INFO L933 BasicCegarLoop]: 10923 mSDtfsCounter, 6369 mSDsluCounter, 33388 mSDsCounter, 0 mSdLazyCounter, 3375 mSolverCounterSat, 2 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6387 SdHoareTripleChecker+Valid, 41805 SdHoareTripleChecker+Invalid, 3388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3375 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.9s IncrementalHoareTripleChecker+Time [2021-11-25 19:05:35,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6387 Valid, 41805 Invalid, 3388 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [2 Valid, 3375 Invalid, 11 Unknown, 0 Unchecked, 48.9s Time] [2021-11-25 19:05:35,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10883 states. [2021-11-25 19:05:37,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10883 to 10871. [2021-11-25 19:05:37,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10871 states, 6867 states have (on average 1.326780253385758) internal successors, (9111), 7031 states have internal predecessors, (9111), 3562 states have call successors, (3562), 441 states have call predecessors, (3562), 439 states have return successors, (3556), 3541 states have call predecessors, (3556), 3556 states have call successors, (3556) [2021-11-25 19:05:37,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10871 states to 10871 states and 16229 transitions. [2021-11-25 19:05:37,274 INFO L78 Accepts]: Start accepts. Automaton has 10871 states and 16229 transitions. Word has length 35 [2021-11-25 19:05:37,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:05:37,275 INFO L470 AbstractCegarLoop]: Abstraction has 10871 states and 16229 transitions. [2021-11-25 19:05:37,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-25 19:05:37,276 INFO L276 IsEmpty]: Start isEmpty. Operand 10871 states and 16229 transitions. [2021-11-25 19:05:37,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-25 19:05:37,280 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:05:37,281 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-25 19:05:37,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:05:37,281 INFO L402 AbstractCegarLoop]: === Iteration 2 === 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 19:05:37,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:05:37,284 INFO L85 PathProgramCache]: Analyzing trace with hash 305534392, now seen corresponding path program 1 times [2021-11-25 19:05:37,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:05:37,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686109440] [2021-11-25 19:05:37,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:05:37,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:05:37,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:05:38,270 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-25 19:05:38,270 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:05:38,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686109440] [2021-11-25 19:05:38,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686109440] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:05:38,271 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:05:38,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:05:38,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316994605] [2021-11-25 19:05:38,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:05:38,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:05:38,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:05:38,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:05:38,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:05:38,274 INFO L87 Difference]: Start difference. First operand 10871 states and 16229 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-25 19:05:41,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:05:43,572 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:05:56,166 WARN L534 Checker$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 19:05:58,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:06:00,924 WARN L534 Checker$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 19:06:02,933 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:06:04,961 WARN L534 Checker$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 19:06:10,922 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:06:18,229 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:06:21,868 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:06:28,857 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:06:30,997 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:06:33,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:06:35,450 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:06:37,840 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:06:38,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:06:38,126 INFO L93 Difference]: Finished difference Result 17045 states and 25458 transitions. [2021-11-25 19:06:38,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 19:06:38,127 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 40 [2021-11-25 19:06:38,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:06:38,278 INFO L225 Difference]: With dead ends: 17045 [2021-11-25 19:06:38,278 INFO L226 Difference]: Without dead ends: 17043 [2021-11-25 19:06:38,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:06:38,292 INFO L933 BasicCegarLoop]: 13451 mSDtfsCounter, 9199 mSDsluCounter, 39054 mSDsCounter, 0 mSdLazyCounter, 4322 mSolverCounterSat, 3 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9218 SdHoareTripleChecker+Valid, 49368 SdHoareTripleChecker+Invalid, 4339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4322 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:06:38,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9218 Valid, 49368 Invalid, 4339 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 4322 Invalid, 14 Unknown, 0 Unchecked, 59.1s Time] [2021-11-25 19:06:38,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17043 states. [2021-11-25 19:06:39,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17043 to 16989. [2021-11-25 19:06:39,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16989 states, 10702 states have (on average 1.3249859839282376) internal successors, (14180), 10968 states have internal predecessors, (14180), 5596 states have call successors, (5596), 691 states have call predecessors, (5596), 688 states have return successors, (5612), 5558 states have call predecessors, (5612), 5587 states have call successors, (5612) [2021-11-25 19:06:39,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16989 states to 16989 states and 25388 transitions. [2021-11-25 19:06:39,976 INFO L78 Accepts]: Start accepts. Automaton has 16989 states and 25388 transitions. Word has length 40 [2021-11-25 19:06:39,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:06:39,978 INFO L470 AbstractCegarLoop]: Abstraction has 16989 states and 25388 transitions. [2021-11-25 19:06:39,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-25 19:06:39,978 INFO L276 IsEmpty]: Start isEmpty. Operand 16989 states and 25388 transitions. [2021-11-25 19:06:39,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-25 19:06:39,987 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:06:39,988 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-25 19:06:39,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 19:06:39,988 INFO L402 AbstractCegarLoop]: === Iteration 3 === 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 19:06:39,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:06:39,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1667194344, now seen corresponding path program 1 times [2021-11-25 19:06:39,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:06:39,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702853633] [2021-11-25 19:06:39,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:06:39,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:06:40,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:06:40,793 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-25 19:06:40,794 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:06:40,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702853633] [2021-11-25 19:06:40,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702853633] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:06:40,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:06:40,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:06:40,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266605680] [2021-11-25 19:06:40,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:06:40,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:06:40,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:06:40,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:06:40,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:06:40,796 INFO L87 Difference]: Start difference. First operand 16989 states and 25388 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-25 19:06:43,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:06:50,998 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:06:52,702 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:06:54,739 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:06:56,875 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:07:02,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:07:08,068 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:07:10,250 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:07:13,774 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:07:17,401 WARN L534 Checker$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 19:07:19,678 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:07:21,918 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:07:22,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:07:22,220 INFO L93 Difference]: Finished difference Result 26209 states and 39089 transitions. [2021-11-25 19:07:22,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 19:07:22,221 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 51 [2021-11-25 19:07:22,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:07:22,340 INFO L225 Difference]: With dead ends: 26209 [2021-11-25 19:07:22,340 INFO L226 Difference]: Without dead ends: 26207 [2021-11-25 19:07:22,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:07:22,351 INFO L933 BasicCegarLoop]: 10712 mSDtfsCounter, 7037 mSDsluCounter, 32879 mSDsCounter, 0 mSdLazyCounter, 3276 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7054 SdHoareTripleChecker+Valid, 41153 SdHoareTripleChecker+Invalid, 3286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3276 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:07:22,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7054 Valid, 41153 Invalid, 3286 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3276 Invalid, 8 Unknown, 0 Unchecked, 40.7s Time] [2021-11-25 19:07:22,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26207 states. [2021-11-25 19:07:24,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26207 to 26190. [2021-11-25 19:07:24,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26190 states, 16510 states have (on average 1.3243488794669898) internal successors, (21865), 16900 states have internal predecessors, (21865), 8588 states have call successors, (8588), 1094 states have call predecessors, (8588), 1089 states have return successors, (8616), 8538 states have call predecessors, (8616), 8573 states have call successors, (8616) [2021-11-25 19:07:24,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26190 states to 26190 states and 39069 transitions. [2021-11-25 19:07:24,564 INFO L78 Accepts]: Start accepts. Automaton has 26190 states and 39069 transitions. Word has length 51 [2021-11-25 19:07:24,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:07:24,564 INFO L470 AbstractCegarLoop]: Abstraction has 26190 states and 39069 transitions. [2021-11-25 19:07:24,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-25 19:07:24,565 INFO L276 IsEmpty]: Start isEmpty. Operand 26190 states and 39069 transitions. [2021-11-25 19:07:24,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-25 19:07:24,568 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:07:24,568 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:07:24,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 19:07:24,569 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:07:24,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:07:24,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1324490890, now seen corresponding path program 1 times [2021-11-25 19:07:24,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:07:24,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428674605] [2021-11-25 19:07:24,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:07:24,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:07:24,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:07:25,233 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-25 19:07:25,233 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:07:25,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428674605] [2021-11-25 19:07:25,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428674605] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:07:25,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:07:25,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:07:25,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743331061] [2021-11-25 19:07:25,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:07:25,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:07:25,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:07:25,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:07:25,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:07:25,236 INFO L87 Difference]: Start difference. First operand 26190 states and 39069 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-25 19:07:28,502 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:07:34,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:07:38,213 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:07:40,232 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:07:42,249 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:07:44,277 WARN L534 Checker$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 19:07:46,317 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:07:48,453 WARN L534 Checker$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 19:07:53,549 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:07:59,500 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:08:05,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:08:05,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:08:05,651 INFO L93 Difference]: Finished difference Result 26211 states and 39091 transitions. [2021-11-25 19:08:05,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 19:08:05,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 56 [2021-11-25 19:08:05,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:08:05,774 INFO L225 Difference]: With dead ends: 26211 [2021-11-25 19:08:05,774 INFO L226 Difference]: Without dead ends: 26209 [2021-11-25 19:08:05,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:08:05,789 INFO L933 BasicCegarLoop]: 11028 mSDtfsCounter, 6349 mSDsluCounter, 33587 mSDsCounter, 0 mSdLazyCounter, 3389 mSolverCounterSat, 2 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6365 SdHoareTripleChecker+Valid, 42101 SdHoareTripleChecker+Invalid, 3400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3389 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:08:05,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6365 Valid, 42101 Invalid, 3400 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3389 Invalid, 9 Unknown, 0 Unchecked, 39.6s Time] [2021-11-25 19:08:05,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26209 states. [2021-11-25 19:08:07,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26209 to 26194. [2021-11-25 19:08:07,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26194 states, 16513 states have (on average 1.324289953370072) internal successors, (21868), 16903 states have internal predecessors, (21868), 8588 states have call successors, (8588), 1095 states have call predecessors, (8588), 1090 states have return successors, (8616), 8538 states have call predecessors, (8616), 8573 states have call successors, (8616) [2021-11-25 19:08:07,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26194 states to 26194 states and 39072 transitions. [2021-11-25 19:08:07,758 INFO L78 Accepts]: Start accepts. Automaton has 26194 states and 39072 transitions. Word has length 56 [2021-11-25 19:08:07,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:08:07,759 INFO L470 AbstractCegarLoop]: Abstraction has 26194 states and 39072 transitions. [2021-11-25 19:08:07,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-25 19:08:07,759 INFO L276 IsEmpty]: Start isEmpty. Operand 26194 states and 39072 transitions. [2021-11-25 19:08:07,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-25 19:08:07,761 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:08:07,762 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:08:07,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 19:08:07,762 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:08:07,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:08:07,763 INFO L85 PathProgramCache]: Analyzing trace with hash 746909976, now seen corresponding path program 1 times [2021-11-25 19:08:07,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:08:07,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343881949] [2021-11-25 19:08:07,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:08:07,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:08:08,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:08:08,887 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-25 19:08:08,887 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:08:08,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343881949] [2021-11-25 19:08:08,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343881949] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:08:08,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:08:08,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:08:08,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408126948] [2021-11-25 19:08:08,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:08:08,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:08:08,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:08:08,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:08:08,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:08:08,890 INFO L87 Difference]: Start difference. First operand 26194 states and 39072 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-25 19:08:11,726 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 19:08:18,948 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:08:20,970 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:08:23,510 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:08:25,554 WARN L534 Checker$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 19:08:27,691 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:08:30,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:08:32,389 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:08:37,030 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:08:48,373 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:08:51,850 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:08:54,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:08:56,230 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:08:58,383 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:09:00,625 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:09:01,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:09:01,053 INFO L93 Difference]: Finished difference Result 47303 states and 70711 transitions. [2021-11-25 19:09:01,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 19:09:01,053 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 61 [2021-11-25 19:09:01,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:09:01,262 INFO L225 Difference]: With dead ends: 47303 [2021-11-25 19:09:01,262 INFO L226 Difference]: Without dead ends: 47301 [2021-11-25 19:09:01,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:09:01,283 INFO L933 BasicCegarLoop]: 12319 mSDtfsCounter, 9433 mSDsluCounter, 36290 mSDsCounter, 0 mSdLazyCounter, 3867 mSolverCounterSat, 3 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9449 SdHoareTripleChecker+Valid, 45777 SdHoareTripleChecker+Invalid, 3883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3867 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:09:01,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9449 Valid, 45777 Invalid, 3883 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 3867 Invalid, 13 Unknown, 0 Unchecked, 51.0s Time] [2021-11-25 19:09:01,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47301 states. [2021-11-25 19:09:04,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47301 to 47158. [2021-11-25 19:09:04,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47158 states, 29569 states have (on average 1.3196591024383646) internal successors, (39021), 30339 states have internal predecessors, (39021), 15620 states have call successors, (15620), 1984 states have call predecessors, (15620), 1966 states have return successors, (15874), 15465 states have call predecessors, (15874), 15593 states have call successors, (15874) [2021-11-25 19:09:04,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47158 states to 47158 states and 70515 transitions. [2021-11-25 19:09:04,813 INFO L78 Accepts]: Start accepts. Automaton has 47158 states and 70515 transitions. Word has length 61 [2021-11-25 19:09:04,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:09:04,814 INFO L470 AbstractCegarLoop]: Abstraction has 47158 states and 70515 transitions. [2021-11-25 19:09:04,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-25 19:09:04,814 INFO L276 IsEmpty]: Start isEmpty. Operand 47158 states and 70515 transitions. [2021-11-25 19:09:04,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-25 19:09:04,816 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:09:04,817 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 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] [2021-11-25 19:09:04,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 19:09:04,817 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:09:04,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:09:04,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1622664120, now seen corresponding path program 1 times [2021-11-25 19:09:04,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:09:04,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595877124] [2021-11-25 19:09:04,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:09:04,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:09:05,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:09:05,859 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-25 19:09:05,859 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:09:05,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595877124] [2021-11-25 19:09:05,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595877124] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:09:05,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:09:05,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:09:05,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732046262] [2021-11-25 19:09:05,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:09:05,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:09:05,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:09:05,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:09:05,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:09:05,861 INFO L87 Difference]: Start difference. First operand 47158 states and 70515 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-25 19:09:10,361 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:09:18,501 WARN L534 Checker$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 19:09:20,540 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:09:22,686 WARN L534 Checker$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 19:09:28,499 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:09:39,124 WARN L534 Checker$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 19:09:40,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:09:43,718 WARN L534 Checker$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 19:09:49,240 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:09:51,414 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:09:53,590 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:09:55,897 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:09:56,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:09:56,341 INFO L93 Difference]: Finished difference Result 83684 states and 125512 transitions. [2021-11-25 19:09:56,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 19:09:56,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 60 [2021-11-25 19:09:56,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:09:56,952 INFO L225 Difference]: With dead ends: 83684 [2021-11-25 19:09:56,952 INFO L226 Difference]: Without dead ends: 83682 [2021-11-25 19:09:56,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:09:56,992 INFO L933 BasicCegarLoop]: 12354 mSDtfsCounter, 9456 mSDsluCounter, 35055 mSDsCounter, 0 mSdLazyCounter, 4052 mSolverCounterSat, 3 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9468 SdHoareTripleChecker+Valid, 44474 SdHoareTripleChecker+Invalid, 4066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4052 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:09:56,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9468 Valid, 44474 Invalid, 4066 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 4052 Invalid, 11 Unknown, 0 Unchecked, 48.4s Time] [2021-11-25 19:09:57,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83682 states. [2021-11-25 19:10:02,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83682 to 83591. [2021-11-25 19:10:02,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83591 states, 51838 states have (on average 1.306416142598094) internal successors, (67722), 53554 states have internal predecessors, (67722), 27950 states have call successors, (27950), 3861 states have call predecessors, (27950), 3800 states have return successors, (29720), 27387 states have call predecessors, (29720), 27896 states have call successors, (29720) [2021-11-25 19:10:03,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83591 states to 83591 states and 125392 transitions. [2021-11-25 19:10:03,485 INFO L78 Accepts]: Start accepts. Automaton has 83591 states and 125392 transitions. Word has length 60 [2021-11-25 19:10:03,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:10:03,486 INFO L470 AbstractCegarLoop]: Abstraction has 83591 states and 125392 transitions. [2021-11-25 19:10:03,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-25 19:10:03,486 INFO L276 IsEmpty]: Start isEmpty. Operand 83591 states and 125392 transitions. [2021-11-25 19:10:03,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-25 19:10:03,487 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:10:03,487 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 3, 3, 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] [2021-11-25 19:10:03,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 19:10:03,488 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:10:03,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:10:03,488 INFO L85 PathProgramCache]: Analyzing trace with hash 2107255338, now seen corresponding path program 1 times [2021-11-25 19:10:03,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:10:03,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023370370] [2021-11-25 19:10:03,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:10:03,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:10:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:10:04,282 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-11-25 19:10:04,283 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:10:04,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023370370] [2021-11-25 19:10:04,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023370370] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:10:04,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:10:04,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:10:04,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612735100] [2021-11-25 19:10:04,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:10:04,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:10:04,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:10:04,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:10:04,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:10:04,286 INFO L87 Difference]: Start difference. First operand 83591 states and 125392 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-25 19:10:07,244 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:17,680 WARN L534 Checker$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 19:10:19,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:22,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:24,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:26,334 WARN L534 Checker$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 19:10:37,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:40,403 WARN L534 Checker$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 19:10:43,967 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:46,292 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:48,425 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:50,736 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:51,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:10:51,117 INFO L93 Difference]: Finished difference Result 83619 states and 125424 transitions. [2021-11-25 19:10:51,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 19:10:51,118 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 65 [2021-11-25 19:10:51,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:10:51,423 INFO L225 Difference]: With dead ends: 83619 [2021-11-25 19:10:51,423 INFO L226 Difference]: Without dead ends: 83617 [2021-11-25 19:10:51,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:10:51,469 INFO L933 BasicCegarLoop]: 11029 mSDtfsCounter, 6354 mSDsluCounter, 33592 mSDsCounter, 0 mSdLazyCounter, 3390 mSolverCounterSat, 2 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6365 SdHoareTripleChecker+Valid, 42104 SdHoareTripleChecker+Invalid, 3403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3390 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:10:51,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6365 Valid, 42104 Invalid, 3403 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3390 Invalid, 11 Unknown, 0 Unchecked, 44.6s Time] [2021-11-25 19:10:51,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83617 states. [2021-11-25 19:10:56,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83617 to 83599. [2021-11-25 19:10:56,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83599 states, 51844 states have (on average 1.3063806805030476) internal successors, (67728), 53560 states have internal predecessors, (67728), 27950 states have call successors, (27950), 3863 states have call predecessors, (27950), 3802 states have return successors, (29720), 27387 states have call predecessors, (29720), 27896 states have call successors, (29720) [2021-11-25 19:10:57,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83599 states to 83599 states and 125398 transitions. [2021-11-25 19:10:57,655 INFO L78 Accepts]: Start accepts. Automaton has 83599 states and 125398 transitions. Word has length 65 [2021-11-25 19:10:57,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:10:57,656 INFO L470 AbstractCegarLoop]: Abstraction has 83599 states and 125398 transitions. [2021-11-25 19:10:57,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-25 19:10:57,656 INFO L276 IsEmpty]: Start isEmpty. Operand 83599 states and 125398 transitions. [2021-11-25 19:10:57,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-25 19:10:57,658 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:10:57,658 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 3, 3, 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] [2021-11-25 19:10:57,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 19:10:57,659 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 19:10:57,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:10:57,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1406743224, now seen corresponding path program 1 times [2021-11-25 19:10:57,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:10:57,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930707318] [2021-11-25 19:10:57,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:10:57,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:10:58,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:10:58,571 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2021-11-25 19:10:58,572 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:10:58,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930707318] [2021-11-25 19:10:58,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930707318] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:10:58,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:10:58,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:10:58,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49524185] [2021-11-25 19:10:58,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:10:58,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:10:58,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:10:58,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:10:58,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:10:58,573 INFO L87 Difference]: Start difference. First operand 83599 states and 125398 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-25 19:11:01,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:11,674 WARN L534 Checker$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 19:11:13,720 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:15,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:17,572 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:19,589 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:21,607 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:26,494 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:35,506 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:39,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:41,542 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:45,330 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:45,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:11:45,707 INFO L93 Difference]: Finished difference Result 83627 states and 125430 transitions. [2021-11-25 19:11:45,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 19:11:45,708 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 70 [2021-11-25 19:11:45,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:11:46,169 INFO L225 Difference]: With dead ends: 83627 [2021-11-25 19:11:46,169 INFO L226 Difference]: Without dead ends: 83625 [2021-11-25 19:11:46,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:11:46,196 INFO L933 BasicCegarLoop]: 11023 mSDtfsCounter, 6354 mSDsluCounter, 33576 mSDsCounter, 0 mSdLazyCounter, 3384 mSolverCounterSat, 2 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6364 SdHoareTripleChecker+Valid, 42086 SdHoareTripleChecker+Invalid, 3397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3384 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:11:46,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6364 Valid, 42086 Invalid, 3397 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3384 Invalid, 11 Unknown, 0 Unchecked, 45.0s Time] [2021-11-25 19:11:46,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83625 states. [2021-11-25 19:11:50,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83625 to 83607. [2021-11-25 19:11:51,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83607 states, 51850 states have (on average 1.3063452266152362) internal successors, (67734), 53566 states have internal predecessors, (67734), 27950 states have call successors, (27950), 3865 states have call predecessors, (27950), 3804 states have return successors, (29720), 27387 states have call predecessors, (29720), 27896 states have call successors, (29720) [2021-11-25 19:11:52,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83607 states to 83607 states and 125404 transitions. [2021-11-25 19:11:52,019 INFO L78 Accepts]: Start accepts. Automaton has 83607 states and 125404 transitions. Word has length 70 [2021-11-25 19:11:52,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:11:52,020 INFO L470 AbstractCegarLoop]: Abstraction has 83607 states and 125404 transitions. [2021-11-25 19:11:52,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-25 19:11:52,020 INFO L276 IsEmpty]: Start isEmpty. Operand 83607 states and 125404 transitions. [2021-11-25 19:11:52,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-25 19:11:52,022 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:11:52,022 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:11:52,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 19:11:52,022 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:11:52,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:11:52,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1254990056, now seen corresponding path program 1 times [2021-11-25 19:11:52,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:11:52,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578447068] [2021-11-25 19:11:52,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:11:52,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:11:52,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:11:52,994 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2021-11-25 19:11:52,994 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:11:52,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578447068] [2021-11-25 19:11:52,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578447068] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:11:52,994 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:11:52,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:11:52,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649349217] [2021-11-25 19:11:52,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:11:52,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:11:52,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:11:52,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:11:52,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:11:52,996 INFO L87 Difference]: Start difference. First operand 83607 states and 125404 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-25 19:11:56,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:06,271 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:08,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:10,329 WARN L534 Checker$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 19:12:12,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:14,819 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:16,079 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:18,217 WARN L534 Checker$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 19:12:23,602 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:33,578 WARN L534 Checker$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 19:12:37,134 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:38,955 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:41,227 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:41,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:12:41,610 INFO L93 Difference]: Finished difference Result 83635 states and 125436 transitions. [2021-11-25 19:12:41,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 19:12:41,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 81 [2021-11-25 19:12:41,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:12:42,062 INFO L225 Difference]: With dead ends: 83635 [2021-11-25 19:12:42,062 INFO L226 Difference]: Without dead ends: 83633 [2021-11-25 19:12:42,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:12:42,100 INFO L933 BasicCegarLoop]: 11023 mSDtfsCounter, 6349 mSDsluCounter, 33576 mSDsCounter, 0 mSdLazyCounter, 3384 mSolverCounterSat, 2 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6360 SdHoareTripleChecker+Valid, 42086 SdHoareTripleChecker+Invalid, 3397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3384 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:12:42,100 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6360 Valid, 42086 Invalid, 3397 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3384 Invalid, 11 Unknown, 0 Unchecked, 46.7s Time] [2021-11-25 19:12:42,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83633 states. [2021-11-25 19:12:47,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83633 to 83615. [2021-11-25 19:12:47,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83615 states, 51856 states have (on average 1.3063097809318112) internal successors, (67740), 53572 states have internal predecessors, (67740), 27950 states have call successors, (27950), 3867 states have call predecessors, (27950), 3806 states have return successors, (29720), 27387 states have call predecessors, (29720), 27896 states have call successors, (29720) [2021-11-25 19:12:48,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83615 states to 83615 states and 125410 transitions. [2021-11-25 19:12:48,053 INFO L78 Accepts]: Start accepts. Automaton has 83615 states and 125410 transitions. Word has length 81 [2021-11-25 19:12:48,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:12:48,053 INFO L470 AbstractCegarLoop]: Abstraction has 83615 states and 125410 transitions. [2021-11-25 19:12:48,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-25 19:12:48,054 INFO L276 IsEmpty]: Start isEmpty. Operand 83615 states and 125410 transitions. [2021-11-25 19:12:48,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-25 19:12:48,055 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:12:48,055 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 3, 3, 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] [2021-11-25 19:12:48,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 19:12:48,055 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:12:48,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:12:48,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1196782008, now seen corresponding path program 1 times [2021-11-25 19:12:48,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:12:48,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763189371] [2021-11-25 19:12:48,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:12:48,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:12:48,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:12:48,896 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2021-11-25 19:12:48,896 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:12:48,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763189371] [2021-11-25 19:12:48,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763189371] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:12:48,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:12:48,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:12:48,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467232913] [2021-11-25 19:12:48,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:12:48,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:12:48,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:12:48,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:12:48,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:12:48,899 INFO L87 Difference]: Start difference. First operand 83615 states and 125410 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-25 19:12:51,926 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 19:12:59,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:04,840 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:06,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:09,003 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:11,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:16,821 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:18,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:26,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:28,848 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:31,020 WARN L534 Checker$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 19:13:33,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:37,055 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:39,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:41,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:43,700 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:44,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:13:44,095 INFO L93 Difference]: Finished difference Result 83643 states and 125442 transitions. [2021-11-25 19:13:44,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 19:13:44,096 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 80 [2021-11-25 19:13:44,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:13:44,391 INFO L225 Difference]: With dead ends: 83643 [2021-11-25 19:13:44,391 INFO L226 Difference]: Without dead ends: 83641 [2021-11-25 19:13:44,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:13:44,423 INFO L933 BasicCegarLoop]: 11029 mSDtfsCounter, 6354 mSDsluCounter, 33594 mSDsCounter, 0 mSdLazyCounter, 3390 mSolverCounterSat, 2 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6362 SdHoareTripleChecker+Valid, 42104 SdHoareTripleChecker+Invalid, 3405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3390 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:13:44,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6362 Valid, 42104 Invalid, 3405 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3390 Invalid, 13 Unknown, 0 Unchecked, 53.2s Time] [2021-11-25 19:13:44,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83641 states. [2021-11-25 19:13:49,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83641 to 83623. [2021-11-25 19:13:49,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83623 states, 51862 states have (on average 1.3062743434499249) internal successors, (67746), 53578 states have internal predecessors, (67746), 27950 states have call successors, (27950), 3869 states have call predecessors, (27950), 3808 states have return successors, (29720), 27387 states have call predecessors, (29720), 27896 states have call successors, (29720) [2021-11-25 19:13:50,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83623 states to 83623 states and 125416 transitions. [2021-11-25 19:13:50,584 INFO L78 Accepts]: Start accepts. Automaton has 83623 states and 125416 transitions. Word has length 80 [2021-11-25 19:13:50,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:13:50,584 INFO L470 AbstractCegarLoop]: Abstraction has 83623 states and 125416 transitions. [2021-11-25 19:13:50,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-25 19:13:50,585 INFO L276 IsEmpty]: Start isEmpty. Operand 83623 states and 125416 transitions. [2021-11-25 19:13:50,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-25 19:13:50,586 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:13:50,586 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:13:50,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-25 19:13:50,587 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:13:50,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:13:50,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1021084136, now seen corresponding path program 1 times [2021-11-25 19:13:50,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:13:50,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982081922] [2021-11-25 19:13:50,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:13:50,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:13:50,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:13:51,146 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-25 19:13:51,146 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:13:51,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982081922] [2021-11-25 19:13:51,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982081922] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:13:51,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:13:51,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:13:51,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180486009] [2021-11-25 19:13:51,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:13:51,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:13:51,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:13:51,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:13:51,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:13:51,148 INFO L87 Difference]: Start difference. First operand 83623 states and 125416 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 19:13:54,291 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 19:14:03,892 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:05,945 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:08,112 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:10,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:13,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:23,659 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:27,420 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:29,605 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:31,790 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:34,076 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:34,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:14:34,470 INFO L93 Difference]: Finished difference Result 83651 states and 125448 transitions. [2021-11-25 19:14:34,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 19:14:34,471 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 91 [2021-11-25 19:14:34,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:14:34,769 INFO L225 Difference]: With dead ends: 83651 [2021-11-25 19:14:34,770 INFO L226 Difference]: Without dead ends: 83649 [2021-11-25 19:14:34,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:14:34,801 INFO L933 BasicCegarLoop]: 11038 mSDtfsCounter, 6349 mSDsluCounter, 33604 mSDsCounter, 0 mSdLazyCounter, 3385 mSolverCounterSat, 2 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6358 SdHoareTripleChecker+Valid, 42131 SdHoareTripleChecker+Invalid, 3397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3385 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:14:34,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6358 Valid, 42131 Invalid, 3397 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3385 Invalid, 10 Unknown, 0 Unchecked, 41.3s Time] [2021-11-25 19:14:34,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83649 states. [2021-11-25 19:14:40,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83649 to 83631. [2021-11-25 19:14:40,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83631 states, 51868 states have (on average 1.306238914166731) internal successors, (67752), 53584 states have internal predecessors, (67752), 27950 states have call successors, (27950), 3871 states have call predecessors, (27950), 3810 states have return successors, (29720), 27387 states have call predecessors, (29720), 27896 states have call successors, (29720) [2021-11-25 19:14:41,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83631 states to 83631 states and 125422 transitions. [2021-11-25 19:14:41,250 INFO L78 Accepts]: Start accepts. Automaton has 83631 states and 125422 transitions. Word has length 91 [2021-11-25 19:14:41,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:14:41,252 INFO L470 AbstractCegarLoop]: Abstraction has 83631 states and 125422 transitions. [2021-11-25 19:14:41,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 19:14:41,252 INFO L276 IsEmpty]: Start isEmpty. Operand 83631 states and 125422 transitions. [2021-11-25 19:14:41,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-25 19:14:41,258 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:14:41,259 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:14:41,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-25 19:14:41,259 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:14:41,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:14:41,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1421968010, now seen corresponding path program 1 times [2021-11-25 19:14:41,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:14:41,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103393186] [2021-11-25 19:14:41,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:14:41,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:14:41,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:14:42,231 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-25 19:14:42,231 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:14:42,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103393186] [2021-11-25 19:14:42,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103393186] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:14:42,231 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:14:42,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:14:42,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832574092] [2021-11-25 19:14:42,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:14:42,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:14:42,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:14:42,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:14:42,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:14:42,233 INFO L87 Difference]: Start difference. First operand 83631 states and 125422 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-25 19:14:46,018 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:47,161 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:49,191 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:54,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:57,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:59,514 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:01,549 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:04,448 WARN L534 Checker$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 19:15:06,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:08,637 WARN L534 Checker$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 19:15:21,449 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:29,760 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:32,109 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:36,277 WARN L534 Checker$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 19:15:38,328 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:41,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:44,123 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:44,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:15:44,911 INFO L93 Difference]: Finished difference Result 127631 states and 191954 transitions. [2021-11-25 19:15:44,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 19:15:44,912 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 96 [2021-11-25 19:15:44,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:15:45,431 INFO L225 Difference]: With dead ends: 127631 [2021-11-25 19:15:45,431 INFO L226 Difference]: Without dead ends: 127629 [2021-11-25 19:15:45,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:15:45,477 INFO L933 BasicCegarLoop]: 12530 mSDtfsCounter, 9661 mSDsluCounter, 36979 mSDsCounter, 0 mSdLazyCounter, 3964 mSolverCounterSat, 2 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9668 SdHoareTripleChecker+Valid, 46607 SdHoareTripleChecker+Invalid, 3979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3964 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:15:45,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9668 Valid, 46607 Invalid, 3979 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3964 Invalid, 13 Unknown, 0 Unchecked, 59.2s Time] [2021-11-25 19:15:45,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127629 states. [2021-11-25 19:15:54,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127629 to 127616. [2021-11-25 19:15:54,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127616 states, 79205 states have (on average 1.308313869073922) internal successors, (103625), 81885 states have internal predecessors, (103625), 42715 states have call successors, (42715), 5781 states have call predecessors, (42715), 5693 states have return successors, (45585), 41829 states have call predecessors, (45585), 42637 states have call successors, (45585) [2021-11-25 19:15:55,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127616 states to 127616 states and 191925 transitions. [2021-11-25 19:15:55,834 INFO L78 Accepts]: Start accepts. Automaton has 127616 states and 191925 transitions. Word has length 96 [2021-11-25 19:15:55,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:15:55,835 INFO L470 AbstractCegarLoop]: Abstraction has 127616 states and 191925 transitions. [2021-11-25 19:15:55,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-25 19:15:55,835 INFO L276 IsEmpty]: Start isEmpty. Operand 127616 states and 191925 transitions. [2021-11-25 19:15:55,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-25 19:15:55,837 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:15:55,837 INFO L514 BasicCegarLoop]: trace histogram [13, 12, 12, 3, 3, 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] [2021-11-25 19:15:55,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-25 19:15:55,838 INFO L402 AbstractCegarLoop]: === Iteration 13 === 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 19:15:55,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:15:55,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1649534038, now seen corresponding path program 1 times [2021-11-25 19:15:55,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:15:55,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276895500] [2021-11-25 19:15:55,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:15:55,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:15:56,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:15:56,380 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2021-11-25 19:15:56,381 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:15:56,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276895500] [2021-11-25 19:15:56,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276895500] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:15:56,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:15:56,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:15:56,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020779100] [2021-11-25 19:15:56,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:15:56,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:15:56,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:15:56,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:15:56,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:15:56,384 INFO L87 Difference]: Start difference. First operand 127616 states and 191925 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-25 19:15:59,555 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 []