./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 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fd3827-9d20-46cf-aa00-f36d48bf7bc7/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fd3827-9d20-46cf-aa00-f36d48bf7bc7/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fd3827-9d20-46cf-aa00-f36d48bf7bc7/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fd3827-9d20-46cf-aa00-f36d48bf7bc7/bin/utaipan-Q6hlc19bkW/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_38fd3827-9d20-46cf-aa00-f36d48bf7bc7/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fd3827-9d20-46cf-aa00-f36d48bf7bc7/bin/utaipan-Q6hlc19bkW --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 15:26:26,323 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:26:26,326 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:26:26,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:26:26,351 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:26:26,352 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:26:26,354 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:26:26,356 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:26:26,359 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:26:26,360 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:26:26,362 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:26:26,363 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:26:26,364 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:26:26,365 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:26:26,367 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:26:26,369 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:26:26,370 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:26:26,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:26:26,373 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:26:26,376 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:26:26,378 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:26:26,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:26:26,381 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:26:26,382 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:26:26,386 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:26:26,386 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:26:26,387 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:26:26,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:26:26,389 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:26:26,390 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:26:26,390 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:26:26,392 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:26:26,393 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:26:26,394 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:26:26,395 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:26:26,396 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:26:26,397 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:26:26,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:26:26,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:26:26,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:26:26,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:26:26,401 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fd3827-9d20-46cf-aa00-f36d48bf7bc7/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 15:26:26,428 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:26:26,428 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:26:26,429 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:26:26,429 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:26:26,430 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:26:26,430 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:26:26,430 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:26:26,431 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:26:26,431 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:26:26,431 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:26:26,432 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:26:26,432 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:26:26,432 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:26:26,433 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:26:26,433 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:26:26,433 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:26:26,434 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:26:26,434 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:26:26,435 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:26:26,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:26:26,435 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:26:26,436 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:26:26,436 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:26:26,436 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:26:26,436 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:26:26,437 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:26:26,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:26:26,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:26:26,438 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:26:26,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:26:26,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:26:26,439 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:26:26,439 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:26:26,439 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:26:26,440 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:26:26,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:26:26,440 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:26:26,441 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:26:26,441 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fd3827-9d20-46cf-aa00-f36d48bf7bc7/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fd3827-9d20-46cf-aa00-f36d48bf7bc7/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b84ae01ff77d37e9299320c753590c425a9f784ed44d0a112a3afe6584a446b [2022-11-23 15:26:26,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:26:26,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:26:26,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:26:26,770 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:26:26,772 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:26:26,773 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fd3827-9d20-46cf-aa00-f36d48bf7bc7/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-23 15:26:29,995 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:26:31,199 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:26:31,200 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fd3827-9d20-46cf-aa00-f36d48bf7bc7/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-23 15:26:31,314 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fd3827-9d20-46cf-aa00-f36d48bf7bc7/bin/utaipan-Q6hlc19bkW/data/54e7cf7cd/ff453ca0a26749c486e47fce3f7ae16b/FLAG303077b3f [2022-11-23 15:26:31,338 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fd3827-9d20-46cf-aa00-f36d48bf7bc7/bin/utaipan-Q6hlc19bkW/data/54e7cf7cd/ff453ca0a26749c486e47fce3f7ae16b [2022-11-23 15:26:31,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:26:31,347 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:26:31,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:26:31,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:26:31,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:26:31,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:26:31" (1/1) ... [2022-11-23 15:26:31,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d6b9e91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:31, skipping insertion in model container [2022-11-23 15:26:31,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:26:31" (1/1) ... [2022-11-23 15:26:31,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:26:31,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:26:42,254 WARN L237 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_38fd3827-9d20-46cf-aa00-f36d48bf7bc7/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945328,945341] [2022-11-23 15:26:42,265 WARN L237 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_38fd3827-9d20-46cf-aa00-f36d48bf7bc7/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945497,945510] [2022-11-23 15:26:42,273 WARN L237 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_38fd3827-9d20-46cf-aa00-f36d48bf7bc7/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945664,945677] [2022-11-23 15:26:42,274 WARN L237 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_38fd3827-9d20-46cf-aa00-f36d48bf7bc7/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945832,945845] [2022-11-23 15:26:42,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:26:42,463 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:26:43,650 WARN L237 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_38fd3827-9d20-46cf-aa00-f36d48bf7bc7/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945328,945341] [2022-11-23 15:26:43,651 WARN L237 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_38fd3827-9d20-46cf-aa00-f36d48bf7bc7/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945497,945510] [2022-11-23 15:26:43,652 WARN L237 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_38fd3827-9d20-46cf-aa00-f36d48bf7bc7/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945664,945677] [2022-11-23 15:26:43,653 WARN L237 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_38fd3827-9d20-46cf-aa00-f36d48bf7bc7/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945832,945845] [2022-11-23 15:26:43,665 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:26:44,472 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:26:44,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:44 WrapperNode [2022-11-23 15:26:44,472 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:26:44,474 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:26:44,474 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:26:44,474 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:26:44,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:44" (1/1) ... [2022-11-23 15:26:44,899 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:44" (1/1) ... [2022-11-23 15:26:46,073 INFO L138 Inliner]: procedures = 856, calls = 16466, calls flagged for inlining = 419, calls inlined = 352, statements flattened = 29101 [2022-11-23 15:26:46,074 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:26:46,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:26:46,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:26:46,076 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:26:46,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:44" (1/1) ... [2022-11-23 15:26:46,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:44" (1/1) ... [2022-11-23 15:26:46,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:44" (1/1) ... [2022-11-23 15:26:46,387 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:44" (1/1) ... [2022-11-23 15:26:47,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:44" (1/1) ... [2022-11-23 15:26:47,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:44" (1/1) ... [2022-11-23 15:26:47,587 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:44" (1/1) ... [2022-11-23 15:26:47,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:44" (1/1) ... [2022-11-23 15:26:47,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:26:47,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:26:47,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:26:47,893 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:26:47,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:44" (1/1) ... [2022-11-23 15:26:47,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:26:47,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fd3827-9d20-46cf-aa00-f36d48bf7bc7/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:26:47,944 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fd3827-9d20-46cf-aa00-f36d48bf7bc7/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:26:47,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fd3827-9d20-46cf-aa00-f36d48bf7bc7/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:26:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_fc_after_link_up [2022-11-23 15:26:48,009 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_fc_after_link_up [2022-11-23 15:26:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-23 15:26:48,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-23 15:26:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_collision_dist [2022-11-23 15:26:48,010 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_collision_dist [2022-11-23 15:26:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_ee_clk [2022-11-23 15:26:48,011 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_ee_clk [2022-11-23 15:26:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-23 15:26:48,011 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-23 15:26:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-23 15:26:48,012 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-23 15:26:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure reg_pattern_test [2022-11-23 15:26:48,012 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_pattern_test [2022-11-23 15:26:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-23 15:26:48,012 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-23 15:26:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-23 15:26:48,013 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-23 15:26:48,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-23 15:26:48,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-23 15:26:48,014 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_unmap_and_free_tx_resource [2022-11-23 15:26:48,014 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_unmap_and_free_tx_resource [2022-11-23 15:26:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-23 15:26:48,015 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-23 15:26:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-23 15:26:48,016 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-23 15:26:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_rctl [2022-11-23 15:26:48,016 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_rctl [2022-11-23 15:26:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-23 15:26:48,017 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-23 15:26:48,017 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2022-11-23 15:26:48,017 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2022-11-23 15:26:48,017 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset [2022-11-23 15:26:48,018 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset [2022-11-23 15:26:48,018 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2022-11-23 15:26:48,018 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2022-11-23 15:26:48,018 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-23 15:26:48,018 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-23 15:26:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-23 15:26:48,019 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-23 15:26:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-23 15:26:48,019 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-23 15:26:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-23 15:26:48,020 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-23 15:26:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg [2022-11-23 15:26:48,021 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg [2022-11-23 15:26:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_speed_and_duplex [2022-11-23 15:26:48,021 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_speed_and_duplex [2022-11-23 15:26:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_bit [2022-11-23 15:26:48,021 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_bit [2022-11-23 15:26:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-23 15:26:48,022 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-23 15:26:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-23 15:26:48,022 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-23 15:26:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-23 15:26:48,023 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-23 15:26:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link [2022-11-23 15:26:48,023 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link [2022-11-23 15:26:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_irq [2022-11-23 15:26:48,024 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_irq [2022-11-23 15:26:48,024 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-23 15:26:48,024 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-23 15:26:48,024 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_vlan_mode [2022-11-23 15:26:48,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_vlan_mode [2022-11-23 15:26:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-23 15:26:48,025 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-23 15:26:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_dsp_after_link_change [2022-11-23 15:26:48,026 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_dsp_after_link_change [2022-11-23 15:26:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-23 15:26:48,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-23 15:26:48,027 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_maybe_stop_tx [2022-11-23 15:26:48,027 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_maybe_stop_tx [2022-11-23 15:26:48,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:26:48,028 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2022-11-23 15:26:48,028 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2022-11-23 15:26:48,029 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_used [2022-11-23 15:26:48,029 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_used [2022-11-23 15:26:48,029 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_force_mac_fc [2022-11-23 15:26:48,029 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_force_mac_fc [2022-11-23 15:26:48,030 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-23 15:26:48,030 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-23 15:26:48,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-23 15:26:48,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-23 15:26:48,030 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_leave_82542_rst [2022-11-23 15:26:48,031 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_leave_82542_rst [2022-11-23 15:26:48,031 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-23 15:26:48,032 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-23 15:26:48,032 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_tx_resources [2022-11-23 15:26:48,032 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_tx_resources [2022-11-23 15:26:48,032 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-23 15:26:48,033 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-23 15:26:48,033 INFO L130 BoogieDeclarations]: Found specification of procedure reg_set_and_check [2022-11-23 15:26:48,033 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_set_and_check [2022-11-23 15:26:48,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-23 15:26:48,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-23 15:26:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:26:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_netpoll [2022-11-23 15:26:48,035 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_netpoll [2022-11-23 15:26:48,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:26:48,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-23 15:26:48,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-23 15:26:48,035 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-23 15:26:48,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-23 15:26:48,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:26:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_rx_mode [2022-11-23 15:26:48,042 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_rx_mode [2022-11-23 15:26:48,042 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-23 15:26:48,042 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-23 15:26:48,042 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-23 15:26:48,043 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_hw_reset [2022-11-23 15:26:48,044 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_hw_reset [2022-11-23 15:26:48,045 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-23 15:26:48,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-23 15:26:48,045 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_ee_bits [2022-11-23 15:26:48,050 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_ee_bits [2022-11-23 15:26:48,050 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-23 15:26:48,050 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-23 15:26:48,051 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_ee_clk [2022-11-23 15:26:48,051 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_ee_clk [2022-11-23 15:26:48,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-23 15:26:48,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-23 15:26:48,052 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2022-11-23 15:26:48,052 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2022-11-23 15:26:48,052 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2022-11-23 15:26:48,052 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2022-11-23 15:26:48,053 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-23 15:26:48,053 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-23 15:26:48,053 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom [2022-11-23 15:26:48,053 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom [2022-11-23 15:26:48,053 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_enter_82542_rst [2022-11-23 15:26:48,053 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_enter_82542_rst [2022-11-23 15:26:48,054 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-23 15:26:48,054 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-23 15:26:48,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:26:48,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:26:48,054 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_down_phy [2022-11-23 15:26:48,054 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_down_phy [2022-11-23 15:26:48,055 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2022-11-23 15:26:48,055 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2022-11-23 15:26:48,055 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_spi_eeprom_ready [2022-11-23 15:26:48,055 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_spi_eeprom_ready [2022-11-23 15:26:48,055 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_clear_mwi [2022-11-23 15:26:48,055 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_clear_mwi [2022-11-23 15:26:48,056 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-23 15:26:48,056 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-23 15:26:48,056 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_up_phy [2022-11-23 15:26:48,056 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_up_phy [2022-11-23 15:26:48,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 15:26:48,057 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-23 15:26:48,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-23 15:26:48,058 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg_ex [2022-11-23 15:26:48,058 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg_ex [2022-11-23 15:26:48,058 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-23 15:26:48,058 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-23 15:26:48,058 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-23 15:26:48,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-23 15:26:48,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-23 15:26:48,059 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_resume [2022-11-23 15:26:48,059 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_resume [2022-11-23 15:26:48,060 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-23 15:26:48,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-23 15:26:48,060 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-23 15:26:48,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-23 15:26:48,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 15:26:48,060 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 15:26:48,061 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_mdi_clk [2022-11-23 15:26:48,061 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_mdi_clk [2022-11-23 15:26:48,061 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_mac_to_phy [2022-11-23 15:26:48,061 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_mac_to_phy [2022-11-23 15:26:48,061 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2022-11-23 15:26:48,061 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2022-11-23 15:26:48,061 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-23 15:26:48,062 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-23 15:26:48,062 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset_clk_and_crs [2022-11-23 15:26:48,062 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset_clk_and_crs [2022-11-23 15:26:48,062 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-23 15:26:48,062 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-23 15:26:48,062 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-23 15:26:48,063 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-23 15:26:48,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:26:48,063 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-23 15:26:48,063 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-23 15:26:48,063 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_regs_len [2022-11-23 15:26:48,063 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_regs_len [2022-11-23 15:26:48,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:26:48,064 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-23 15:26:48,064 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-23 15:26:48,064 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_tx_resources [2022-11-23 15:26:48,064 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_tx_resources [2022-11-23 15:26:48,064 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_setup_autoneg [2022-11-23 15:26:48,064 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_setup_autoneg [2022-11-23 15:26:48,065 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_mng_vlan [2022-11-23 15:26:48,065 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_mng_vlan [2022-11-23 15:26:48,065 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_filter_on_off [2022-11-23 15:26:48,065 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_filter_on_off [2022-11-23 15:26:48,065 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-23 15:26:48,065 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-23 15:26:48,066 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_nway_reset [2022-11-23 15:26:48,066 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_nway_reset [2022-11-23 15:26:48,066 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-23 15:26:48,066 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-23 15:26:48,066 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-23 15:26:48,066 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-23 15:26:48,067 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_all_rx_rings [2022-11-23 15:26:48,067 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_all_rx_rings [2022-11-23 15:26:48,067 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reinit_locked [2022-11-23 15:26:48,067 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reinit_locked [2022-11-23 15:26:48,067 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_bit [2022-11-23 15:26:48,067 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_bit [2022-11-23 15:26:48,068 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_phy_reg [2022-11-23 15:26:48,068 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_phy_reg [2022-11-23 15:26:48,068 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_rx_resources [2022-11-23 15:26:48,068 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_rx_resources [2022-11-23 15:26:48,068 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-23 15:26:48,068 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-23 15:26:48,069 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_copper_link_rtl_setup [2022-11-23 15:26:48,069 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_copper_link_rtl_setup [2022-11-23 15:26:48,069 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_desc_rings [2022-11-23 15:26:48,069 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_desc_rings [2022-11-23 15:26:48,069 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-23 15:26:48,069 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-23 15:26:48,070 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-23 15:26:48,070 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-23 15:26:48,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:26:48,070 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_64k_bound [2022-11-23 15:26:48,070 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_64k_bound [2022-11-23 15:26:48,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 15:26:48,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 15:26:48,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_88 [2022-11-23 15:26:48,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_88 [2022-11-23 15:26:48,071 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_request_irq [2022-11-23 15:26:48,072 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_request_irq [2022-11-23 15:26:48,077 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-23 15:26:48,077 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-23 15:26:48,077 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_eeprom [2022-11-23 15:26:48,077 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_eeprom [2022-11-23 15:26:48,077 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw [2022-11-23 15:26:48,078 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw [2022-11-23 15:26:48,078 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_disable [2022-11-23 15:26:48,078 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_disable [2022-11-23 15:26:48,078 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-11-23 15:26:48,078 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-11-23 15:26:48,082 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_tx_ring [2022-11-23 15:26:48,082 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_tx_ring [2022-11-23 15:26:48,082 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-23 15:26:48,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-23 15:26:48,083 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_manageability [2022-11-23 15:26:48,083 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_manageability [2022-11-23 15:26:48,083 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-23 15:26:48,083 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-23 15:26:48,083 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-23 15:26:48,083 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-23 15:26:48,083 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-23 15:26:48,084 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-11-23 15:26:48,084 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-11-23 15:26:48,084 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_rx_ring [2022-11-23 15:26:48,084 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_rx_ring [2022-11-23 15:26:48,084 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-23 15:26:48,084 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-23 15:26:48,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_91 [2022-11-23 15:26:48,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_91 [2022-11-23 15:26:48,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 15:26:48,085 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 15:26:48,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_82 [2022-11-23 15:26:48,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_82 [2022-11-23 15:26:48,085 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-23 15:26:48,086 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-23 15:26:48,086 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_eeprom [2022-11-23 15:26:48,086 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_eeprom [2022-11-23 15:26:48,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 15:26:48,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 15:26:48,086 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_manageability [2022-11-23 15:26:48,086 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_manageability [2022-11-23 15:26:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_in_ee_bits [2022-11-23 15:26:48,087 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_in_ee_bits [2022-11-23 15:26:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down_and_stop [2022-11-23 15:26:48,087 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down_and_stop [2022-11-23 15:26:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-23 15:26:48,087 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-23 15:26:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-23 15:26:48,088 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-23 15:26:48,088 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-23 15:26:48,088 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-23 15:26:48,088 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-23 15:26:48,088 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-23 15:26:48,088 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_get_info [2022-11-23 15:26:48,088 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_get_info [2022-11-23 15:26:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_do_read_eeprom [2022-11-23 15:26:48,089 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_do_read_eeprom [2022-11-23 15:26:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set [2022-11-23 15:26:48,089 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set [2022-11-23 15:26:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_83 [2022-11-23 15:26:48,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_83 [2022-11-23 15:26:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_eeprom_params [2022-11-23 15:26:48,090 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_eeprom_params [2022-11-23 15:26:48,090 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2022-11-23 15:26:48,090 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2022-11-23 15:26:48,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-23 15:26:48,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-23 15:26:48,090 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-23 15:26:48,091 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-23 15:26:48,091 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-23 15:26:48,091 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-23 15:26:48,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 15:26:48,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 15:26:48,091 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-23 15:26:48,091 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-23 15:26:48,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:26:48,092 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_standby_eeprom [2022-11-23 15:26:48,092 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_standby_eeprom [2022-11-23 15:26:48,092 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure_rx [2022-11-23 15:26:48,092 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure_rx [2022-11-23 15:26:48,092 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_hw_dev [2022-11-23 15:26:48,093 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_hw_dev [2022-11-23 15:26:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_stats [2022-11-23 15:26:48,093 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_stats [2022-11-23 15:26:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_validate_option [2022-11-23 15:26:48,093 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_validate_option [2022-11-23 15:26:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-23 15:26:48,093 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-23 15:26:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 15:26:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_link [2022-11-23 15:26:48,094 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_link [2022-11-23 15:26:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset [2022-11-23 15:26:48,094 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset [2022-11-23 15:26:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 15:26:48,095 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-23 15:26:48,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-23 15:26:48,095 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shutdown [2022-11-23 15:26:48,095 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shutdown [2022-11-23 15:26:48,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 15:26:48,095 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 15:26:48,095 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_disable_receiver [2022-11-23 15:26:48,096 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_disable_receiver [2022-11-23 15:26:48,096 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_kill_vid [2022-11-23 15:26:48,096 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_kill_vid [2022-11-23 15:26:48,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-23 15:26:48,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-23 15:26:48,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-23 15:26:48,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-23 15:26:48,097 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-11-23 15:26:48,097 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-11-23 15:26:48,097 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_has_link [2022-11-23 15:26:48,097 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_has_link [2022-11-23 15:26:48,097 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-23 15:26:48,097 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-23 15:26:48,097 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-11-23 15:26:48,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-11-23 15:26:48,098 INFO L130 BoogieDeclarations]: Found specification of procedure pci_wake_from_d3 [2022-11-23 15:26:48,098 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_wake_from_d3 [2022-11-23 15:26:48,098 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-23 15:26:48,098 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-23 15:26:48,098 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-23 15:26:48,098 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-23 15:26:48,099 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-23 15:26:48,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-23 15:26:48,099 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_open [2022-11-23 15:26:48,099 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_open [2022-11-23 15:26:48,099 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-23 15:26:48,099 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-23 15:26:48,099 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_vfta [2022-11-23 15:26:48,100 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_vfta [2022-11-23 15:26:48,100 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_remove [2022-11-23 15:26:48,100 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_remove [2022-11-23 15:26:48,100 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure [2022-11-23 15:26:48,100 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure [2022-11-23 15:26:48,100 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-23 15:26:48,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-23 15:26:48,101 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-23 15:26:48,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-23 15:26:48,102 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-23 15:26:48,102 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-23 15:26:48,102 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_cable_length [2022-11-23 15:26:48,102 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_cable_length [2022-11-23 15:26:48,103 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-23 15:26:48,103 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-23 15:26:48,103 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_rx_resources [2022-11-23 15:26:48,103 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_rx_resources [2022-11-23 15:26:48,103 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_add_vid [2022-11-23 15:26:48,103 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_add_vid [2022-11-23 15:26:48,104 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-23 15:26:48,104 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-23 15:26:48,104 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_write [2022-11-23 15:26:48,104 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_write [2022-11-23 15:26:48,104 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-23 15:26:48,104 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-23 15:26:48,104 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_resume [2022-11-23 15:26:48,105 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_resume [2022-11-23 15:26:48,105 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-23 15:26:48,105 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-23 15:26:48,105 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_acquire_eeprom [2022-11-23 15:26:48,105 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_acquire_eeprom [2022-11-23 15:26:48,105 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-23 15:26:48,105 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-23 15:26:48,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 15:26:48,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 15:26:48,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 15:26:48,106 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-23 15:26:48,106 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-23 15:26:48,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-23 15:26:48,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-23 15:26:48,107 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-23 15:26:48,107 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-23 15:26:48,107 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-23 15:26:48,107 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-23 15:26:48,107 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_polarity [2022-11-23 15:26:48,107 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_polarity [2022-11-23 15:26:48,107 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-23 15:26:48,108 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-23 15:26:48,108 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-23 15:26:48,108 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-23 15:26:48,108 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom_len [2022-11-23 15:26:48,108 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom_len [2022-11-23 15:26:48,108 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-23 15:26:48,109 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-23 15:26:48,109 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_rx_resources [2022-11-23 15:26:48,109 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_rx_resources [2022-11-23 15:26:48,109 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-11-23 15:26:48,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-11-23 15:26:48,109 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_close [2022-11-23 15:26:48,109 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_close [2022-11-23 15:26:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-23 15:26:48,110 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-23 15:26:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-23 15:26:48,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-23 15:26:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-23 15:26:48,110 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-23 15:26:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-23 15:26:48,111 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-23 15:26:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-23 15:26:48,111 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-23 15:26:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2022-11-23 15:26:48,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2022-11-23 15:26:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 15:26:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_media_type [2022-11-23 15:26:48,112 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_media_type [2022-11-23 15:26:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_eeprom [2022-11-23 15:26:48,112 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_eeprom [2022-11-23 15:26:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_phy_loopback [2022-11-23 15:26:48,112 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_phy_loopback [2022-11-23 15:26:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-23 15:26:48,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-23 15:26:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-23 15:26:48,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-23 15:26:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-23 15:26:48,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-23 15:26:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_enable [2022-11-23 15:26:48,113 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_enable [2022-11-23 15:26:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_up [2022-11-23 15:26:48,114 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_up [2022-11-23 15:26:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_tx_timeout [2022-11-23 15:26:48,114 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_tx_timeout [2022-11-23 15:26:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_87 [2022-11-23 15:26:48,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_87 [2022-11-23 15:26:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_mdi_clk [2022-11-23 15:26:48,115 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_mdi_clk [2022-11-23 15:26:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-23 15:26:48,115 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-23 15:26:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-23 15:26:48,115 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-23 15:26:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-23 15:26:48,115 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-23 15:26:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_eeprom [2022-11-23 15:26:48,116 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_eeprom [2022-11-23 15:26:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_set_mwi [2022-11-23 15:26:48,116 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_set_mwi [2022-11-23 15:26:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_stats_lock_of_e1000_adapter [2022-11-23 15:26:48,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_stats_lock_of_e1000_adapter [2022-11-23 15:26:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_polarity_reversal_workaround [2022-11-23 15:26:48,117 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_polarity_reversal_workaround [2022-11-23 15:26:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-23 15:26:48,117 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-23 15:26:48,121 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-23 15:26:48,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-23 15:26:48,121 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 15:26:48,122 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 15:26:48,122 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_link_test [2022-11-23 15:26:48,122 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_link_test [2022-11-23 15:26:48,122 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_mdi_bits [2022-11-23 15:26:48,122 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_mdi_bits [2022-11-23 15:26:48,122 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_spd_dplx [2022-11-23 15:26:48,122 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_spd_dplx [2022-11-23 15:26:48,123 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2022-11-23 15:26:48,123 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2022-11-23 15:26:48,123 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down [2022-11-23 15:26:48,123 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down [2022-11-23 15:26:48,123 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-23 15:26:48,123 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-23 15:26:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_init_script [2022-11-23 15:26:48,124 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_init_script [2022-11-23 15:26:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-23 15:26:48,124 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-23 15:26:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-23 15:26:48,124 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-23 15:26:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-23 15:26:48,125 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-23 15:26:48,125 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_shutdown [2022-11-23 15:26:48,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_shutdown [2022-11-23 15:26:48,125 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_tx_resources [2022-11-23 15:26:48,125 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_tx_resources [2022-11-23 15:26:48,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-23 15:26:48,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-23 15:26:48,126 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-23 15:26:48,126 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-23 15:26:48,126 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-23 15:26:48,126 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-23 15:26:48,126 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-11-23 15:26:48,126 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-11-23 15:26:48,126 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_wol_exclusion [2022-11-23 15:26:48,127 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_wol_exclusion [2022-11-23 15:26:48,127 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-23 15:26:48,127 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-23 15:26:48,127 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-23 15:26:48,127 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-23 15:26:48,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_e1000_phy_lock [2022-11-23 15:26:48,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_e1000_phy_lock [2022-11-23 15:26:48,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:26:48,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-23 15:26:48,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-23 15:26:48,128 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-23 15:26:50,607 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:26:50,612 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:26:52,417 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 15:27:57,251 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:28:05,643 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:28:05,643 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-23 15:28:05,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:28:05 BoogieIcfgContainer [2022-11-23 15:28:05,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:28:05,662 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:28:05,662 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:28:05,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:28:05,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:26:31" (1/3) ... [2022-11-23 15:28:05,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7282061a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:28:05, skipping insertion in model container [2022-11-23 15:28:05,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:44" (2/3) ... [2022-11-23 15:28:05,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7282061a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:28:05, skipping insertion in model container [2022-11-23 15:28:05,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:28:05" (3/3) ... [2022-11-23 15:28:05,668 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-23 15:28:05,692 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:28:05,692 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-23 15:28:05,879 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:28:05,885 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1508be29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:28:05,885 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-23 15:28:05,907 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) [2022-11-23 15:28:05,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-23 15:28:05,916 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:28:05,917 INFO L195 NwaCegarLoop]: 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] [2022-11-23 15:28:05,918 INFO L420 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)] === [2022-11-23 15:28:05,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:28:05,923 INFO L85 PathProgramCache]: Analyzing trace with hash -2136983882, now seen corresponding path program 1 times [2022-11-23 15:28:05,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:28:05,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411529322] [2022-11-23 15:28:05,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:28:05,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:28:06,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:28:09,605 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 15:28:09,605 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:28:09,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411529322] [2022-11-23 15:28:09,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411529322] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:28:09,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:28:09,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:28:09,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653669775] [2022-11-23 15:28:09,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:28:09,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:28:09,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:28:09,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:28:09,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:28:09,674 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) [2022-11-23 15:28:13,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:28:27,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:28:29,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:28:43,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:28:46,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:28:47,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:28:47,234 INFO L93 Difference]: Finished difference Result 17486 states and 26812 transitions. [2022-11-23 15:28:47,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:28:47,237 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 [2022-11-23 15:28:47,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:28:47,332 INFO L225 Difference]: With dead ends: 17486 [2022-11-23 15:28:47,332 INFO L226 Difference]: Without dead ends: 10883 [2022-11-23 15:28:47,432 INFO L412 NwaCegarLoop]: 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 [2022-11-23 15:28:47,438 INFO L413 NwaCegarLoop]: 10956 mSDtfsCounter, 6369 mSDsluCounter, 31011 mSDsCounter, 0 mSdLazyCounter, 3129 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6387 SdHoareTripleChecker+Valid, 41967 SdHoareTripleChecker+Invalid, 3136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3129 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:28:47,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6387 Valid, 41967 Invalid, 3136 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 3129 Invalid, 5 Unknown, 0 Unchecked, 36.0s Time] [2022-11-23 15:28:47,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10883 states. [2022-11-23 15:28:48,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10883 to 10871. [2022-11-23 15:28:48,538 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) [2022-11-23 15:28:48,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10871 states to 10871 states and 16229 transitions. [2022-11-23 15:28:48,646 INFO L78 Accepts]: Start accepts. Automaton has 10871 states and 16229 transitions. Word has length 35 [2022-11-23 15:28:48,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:28:48,647 INFO L495 AbstractCegarLoop]: Abstraction has 10871 states and 16229 transitions. [2022-11-23 15:28:48,647 INFO L496 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) [2022-11-23 15:28:48,648 INFO L276 IsEmpty]: Start isEmpty. Operand 10871 states and 16229 transitions. [2022-11-23 15:28:48,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-23 15:28:48,652 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:28:48,652 INFO L195 NwaCegarLoop]: 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] [2022-11-23 15:28:48,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:28:48,653 INFO L420 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)] === [2022-11-23 15:28:48,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:28:48,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1923592118, now seen corresponding path program 1 times [2022-11-23 15:28:48,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:28:48,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442565746] [2022-11-23 15:28:48,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:28:48,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:28:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:28:51,324 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 15:28:51,325 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:28:51,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442565746] [2022-11-23 15:28:51,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442565746] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:28:51,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:28:51,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:28:51,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616580387] [2022-11-23 15:28:51,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:28:51,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:28:51,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:28:51,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:28:51,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:28:51,328 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) [2022-11-23 15:28:54,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:28:56,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:29:11,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:29:13,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:29:19,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:29:28,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:29:29,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:29:31,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:29:33,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:29:40,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:29:41,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:29:41,898 INFO L93 Difference]: Finished difference Result 17105 states and 25546 transitions. [2022-11-23 15:29:41,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:29:41,898 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 [2022-11-23 15:29:41,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:29:42,104 INFO L225 Difference]: With dead ends: 17105 [2022-11-23 15:29:42,105 INFO L226 Difference]: Without dead ends: 17103 [2022-11-23 15:29:42,113 INFO L412 NwaCegarLoop]: 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 [2022-11-23 15:29:42,117 INFO L413 NwaCegarLoop]: 13626 mSDtfsCounter, 9294 mSDsluCounter, 36330 mSDsCounter, 0 mSdLazyCounter, 4023 mSolverCounterSat, 3 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9311 SdHoareTripleChecker+Valid, 49956 SdHoareTripleChecker+Invalid, 4033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4023 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:29:42,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9311 Valid, 49956 Invalid, 4033 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [3 Valid, 4023 Invalid, 7 Unknown, 0 Unchecked, 49.4s Time] [2022-11-23 15:29:42,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17103 states. [2022-11-23 15:29:43,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17103 to 17052. [2022-11-23 15:29:43,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17052 states, 10742 states have (on average 1.3247067585179668) internal successors, (14230), 11008 states have internal predecessors, (14230), 5618 states have call successors, (5618), 692 states have call predecessors, (5618), 689 states have return successors, (5632), 5580 states have call predecessors, (5632), 5609 states have call successors, (5632) [2022-11-23 15:29:44,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17052 states to 17052 states and 25480 transitions. [2022-11-23 15:29:44,011 INFO L78 Accepts]: Start accepts. Automaton has 17052 states and 25480 transitions. Word has length 40 [2022-11-23 15:29:44,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:29:44,012 INFO L495 AbstractCegarLoop]: Abstraction has 17052 states and 25480 transitions. [2022-11-23 15:29:44,013 INFO L496 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) [2022-11-23 15:29:44,014 INFO L276 IsEmpty]: Start isEmpty. Operand 17052 states and 25480 transitions. [2022-11-23 15:29:44,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-23 15:29:44,025 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:29:44,026 INFO L195 NwaCegarLoop]: 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] [2022-11-23 15:29:44,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:29:44,027 INFO L420 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)] === [2022-11-23 15:29:44,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:29:44,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1751474654, now seen corresponding path program 1 times [2022-11-23 15:29:44,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:29:44,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772134941] [2022-11-23 15:29:44,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:29:44,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:29:44,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:29:46,609 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-23 15:29:46,610 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:29:46,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772134941] [2022-11-23 15:29:46,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772134941] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:29:46,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:29:46,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:29:46,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707803656] [2022-11-23 15:29:46,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:29:46,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:29:46,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:29:46,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:29:46,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:29:46,612 INFO L87 Difference]: Start difference. First operand 17052 states and 25480 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) [2022-11-23 15:29:49,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:29:54,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:30:05,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:30:07,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:30:15,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:30:22,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:30:25,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:30:28,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:30:29,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:30:29,400 INFO L93 Difference]: Finished difference Result 17070 states and 25498 transitions. [2022-11-23 15:30:29,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:30:29,401 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 [2022-11-23 15:30:29,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:30:29,492 INFO L225 Difference]: With dead ends: 17070 [2022-11-23 15:30:29,493 INFO L226 Difference]: Without dead ends: 17068 [2022-11-23 15:30:29,501 INFO L412 NwaCegarLoop]: 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 [2022-11-23 15:30:29,502 INFO L413 NwaCegarLoop]: 10992 mSDtfsCounter, 6350 mSDsluCounter, 31064 mSDsCounter, 0 mSdLazyCounter, 3137 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6365 SdHoareTripleChecker+Valid, 42056 SdHoareTripleChecker+Invalid, 3145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3137 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.9s IncrementalHoareTripleChecker+Time [2022-11-23 15:30:29,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6365 Valid, 42056 Invalid, 3145 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 3137 Invalid, 6 Unknown, 0 Unchecked, 41.9s Time] [2022-11-23 15:30:29,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17068 states. [2022-11-23 15:30:30,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17068 to 17056. [2022-11-23 15:30:30,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17056 states, 10745 states have (on average 1.324616100511866) internal successors, (14233), 11011 states have internal predecessors, (14233), 5618 states have call successors, (5618), 693 states have call predecessors, (5618), 690 states have return successors, (5632), 5580 states have call predecessors, (5632), 5609 states have call successors, (5632) [2022-11-23 15:30:31,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17056 states to 17056 states and 25483 transitions. [2022-11-23 15:30:31,125 INFO L78 Accepts]: Start accepts. Automaton has 17056 states and 25483 transitions. Word has length 51 [2022-11-23 15:30:31,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:30:31,126 INFO L495 AbstractCegarLoop]: Abstraction has 17056 states and 25483 transitions. [2022-11-23 15:30:31,126 INFO L496 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) [2022-11-23 15:30:31,127 INFO L276 IsEmpty]: Start isEmpty. Operand 17056 states and 25483 transitions. [2022-11-23 15:30:31,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-23 15:30:31,130 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:30:31,131 INFO L195 NwaCegarLoop]: 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] [2022-11-23 15:30:31,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:30:31,131 INFO L420 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)] === [2022-11-23 15:30:31,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:30:31,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1045158878, now seen corresponding path program 1 times [2022-11-23 15:30:31,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:30:31,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113762047] [2022-11-23 15:30:31,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:30:31,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:30:31,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:30:33,434 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-23 15:30:33,434 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:30:33,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113762047] [2022-11-23 15:30:33,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113762047] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:30:33,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:30:33,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:30:33,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074303722] [2022-11-23 15:30:33,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:30:33,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:30:33,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:30:33,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:30:33,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:30:33,436 INFO L87 Difference]: Start difference. First operand 17056 states and 25483 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) [2022-11-23 15:30:36,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:30:38,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:30:51,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:30:53,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:31:02,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:31:07,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:31:08,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:31:11,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:31:12,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:31:12,476 INFO L93 Difference]: Finished difference Result 17074 states and 25501 transitions. [2022-11-23 15:31:12,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:31:12,477 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 [2022-11-23 15:31:12,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:31:12,649 INFO L225 Difference]: With dead ends: 17074 [2022-11-23 15:31:12,649 INFO L226 Difference]: Without dead ends: 17072 [2022-11-23 15:31:12,655 INFO L412 NwaCegarLoop]: 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 [2022-11-23 15:31:12,657 INFO L413 NwaCegarLoop]: 10986 mSDtfsCounter, 6350 mSDsluCounter, 31052 mSDsCounter, 0 mSdLazyCounter, 3139 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6364 SdHoareTripleChecker+Valid, 42038 SdHoareTripleChecker+Invalid, 3145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3139 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:31:12,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6364 Valid, 42038 Invalid, 3145 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3139 Invalid, 4 Unknown, 0 Unchecked, 38.2s Time] [2022-11-23 15:31:12,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17072 states. [2022-11-23 15:31:13,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17072 to 17060. [2022-11-23 15:31:13,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17060 states, 10748 states have (on average 1.3245254931149981) internal successors, (14236), 11014 states have internal predecessors, (14236), 5618 states have call successors, (5618), 694 states have call predecessors, (5618), 691 states have return successors, (5632), 5580 states have call predecessors, (5632), 5609 states have call successors, (5632) [2022-11-23 15:31:14,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17060 states to 17060 states and 25486 transitions. [2022-11-23 15:31:14,125 INFO L78 Accepts]: Start accepts. Automaton has 17060 states and 25486 transitions. Word has length 56 [2022-11-23 15:31:14,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:31:14,126 INFO L495 AbstractCegarLoop]: Abstraction has 17060 states and 25486 transitions. [2022-11-23 15:31:14,126 INFO L496 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) [2022-11-23 15:31:14,126 INFO L276 IsEmpty]: Start isEmpty. Operand 17060 states and 25486 transitions. [2022-11-23 15:31:14,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-23 15:31:14,129 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:31:14,129 INFO L195 NwaCegarLoop]: 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] [2022-11-23 15:31:14,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:31:14,130 INFO L420 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)] === [2022-11-23 15:31:14,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:31:14,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1992616802, now seen corresponding path program 1 times [2022-11-23 15:31:14,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:31:14,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709018304] [2022-11-23 15:31:14,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:31:14,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:31:14,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:31:16,417 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-11-23 15:31:16,417 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:31:16,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709018304] [2022-11-23 15:31:16,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709018304] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:31:16,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:31:16,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:31:16,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85824694] [2022-11-23 15:31:16,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:31:16,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:31:16,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:31:16,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:31:16,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:31:16,420 INFO L87 Difference]: Start difference. First operand 17060 states and 25486 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) [2022-11-23 15:31:19,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:31:31,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:31:33,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:31:35,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:31:37,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:31:40,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:31:42,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:31:44,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:32:02,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:32:04,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:32:06,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:32:08,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:32:10,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:32:10,603 INFO L93 Difference]: Finished difference Result 29471 states and 44148 transitions. [2022-11-23 15:32:10,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:32:10,603 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 [2022-11-23 15:32:10,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:32:10,775 INFO L225 Difference]: With dead ends: 29471 [2022-11-23 15:32:10,776 INFO L226 Difference]: Without dead ends: 29469 [2022-11-23 15:32:10,798 INFO L412 NwaCegarLoop]: 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 [2022-11-23 15:32:10,799 INFO L413 NwaCegarLoop]: 13382 mSDtfsCounter, 9406 mSDsluCounter, 35647 mSDsCounter, 0 mSdLazyCounter, 3996 mSolverCounterSat, 3 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9420 SdHoareTripleChecker+Valid, 49029 SdHoareTripleChecker+Invalid, 4006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3996 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:32:10,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9420 Valid, 49029 Invalid, 4006 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3 Valid, 3996 Invalid, 7 Unknown, 0 Unchecked, 52.8s Time] [2022-11-23 15:32:10,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29469 states. [2022-11-23 15:32:13,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29469 to 29413. [2022-11-23 15:32:13,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29413 states, 18440 states have (on average 1.3206073752711496) internal successors, (24352), 18940 states have internal predecessors, (24352), 9784 states have call successors, (9784), 1196 states have call predecessors, (9784), 1186 states have return successors, (9940), 9679 states have call predecessors, (9940), 9769 states have call successors, (9940) [2022-11-23 15:32:13,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29413 states to 29413 states and 44076 transitions. [2022-11-23 15:32:13,603 INFO L78 Accepts]: Start accepts. Automaton has 29413 states and 44076 transitions. Word has length 61 [2022-11-23 15:32:13,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:32:13,604 INFO L495 AbstractCegarLoop]: Abstraction has 29413 states and 44076 transitions. [2022-11-23 15:32:13,604 INFO L496 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) [2022-11-23 15:32:13,604 INFO L276 IsEmpty]: Start isEmpty. Operand 29413 states and 44076 transitions. [2022-11-23 15:32:13,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-23 15:32:13,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:32:13,606 INFO L195 NwaCegarLoop]: 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] [2022-11-23 15:32:13,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:32:13,607 INFO L420 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)] === [2022-11-23 15:32:13,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:32:13,607 INFO L85 PathProgramCache]: Analyzing trace with hash 593802954, now seen corresponding path program 1 times [2022-11-23 15:32:13,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:32:13,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451316909] [2022-11-23 15:32:13,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:32:13,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:32:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:32:15,759 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-23 15:32:15,759 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:32:15,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451316909] [2022-11-23 15:32:15,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451316909] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:32:15,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:32:15,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:32:15,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723153945] [2022-11-23 15:32:15,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:32:15,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:32:15,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:32:15,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:32:15,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:32:15,761 INFO L87 Difference]: Start difference. First operand 29413 states and 44076 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) [2022-11-23 15:32:19,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:32:20,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:32:32,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:32:34,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:32:36,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:32:37,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:32:39,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:32:57,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:32:59,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:33:02,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:33:04,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:33:05,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:33:05,668 INFO L93 Difference]: Finished difference Result 48602 states and 72905 transitions. [2022-11-23 15:33:05,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:33:05,670 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 [2022-11-23 15:33:05,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:33:05,928 INFO L225 Difference]: With dead ends: 48602 [2022-11-23 15:33:05,928 INFO L226 Difference]: Without dead ends: 48600 [2022-11-23 15:33:05,956 INFO L412 NwaCegarLoop]: 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 [2022-11-23 15:33:05,958 INFO L413 NwaCegarLoop]: 12771 mSDtfsCounter, 9248 mSDsluCounter, 32825 mSDsCounter, 0 mSdLazyCounter, 3800 mSolverCounterSat, 3 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9260 SdHoareTripleChecker+Valid, 45596 SdHoareTripleChecker+Invalid, 3810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3800 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:33:05,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9260 Valid, 45596 Invalid, 3810 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3 Valid, 3800 Invalid, 7 Unknown, 0 Unchecked, 48.1s Time] [2022-11-23 15:33:06,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48600 states. [2022-11-23 15:33:09,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48600 to 48546. [2022-11-23 15:33:09,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48546 states, 30125 states have (on average 1.310207468879668) internal successors, (39470), 31150 states have internal predecessors, (39470), 16330 states have call successors, (16330), 2122 states have call predecessors, (16330), 2088 states have return successors, (17033), 15990 states have call predecessors, (17033), 16303 states have call successors, (17033) [2022-11-23 15:33:10,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48546 states to 48546 states and 72833 transitions. [2022-11-23 15:33:10,273 INFO L78 Accepts]: Start accepts. Automaton has 48546 states and 72833 transitions. Word has length 60 [2022-11-23 15:33:10,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:33:10,274 INFO L495 AbstractCegarLoop]: Abstraction has 48546 states and 72833 transitions. [2022-11-23 15:33:10,274 INFO L496 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) [2022-11-23 15:33:10,274 INFO L276 IsEmpty]: Start isEmpty. Operand 48546 states and 72833 transitions. [2022-11-23 15:33:10,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-23 15:33:10,275 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:33:10,276 INFO L195 NwaCegarLoop]: 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] [2022-11-23 15:33:10,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 15:33:10,276 INFO L420 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)] === [2022-11-23 15:33:10,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:33:10,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1810484362, now seen corresponding path program 1 times [2022-11-23 15:33:10,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:33:10,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764528502] [2022-11-23 15:33:10,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:33:10,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:33:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:33:12,413 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-11-23 15:33:12,413 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:33:12,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764528502] [2022-11-23 15:33:12,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764528502] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:33:12,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:33:12,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:33:12,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560529644] [2022-11-23 15:33:12,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:33:12,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:33:12,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:33:12,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:33:12,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:33:12,415 INFO L87 Difference]: Start difference. First operand 48546 states and 72833 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) [2022-11-23 15:33:15,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:33:28,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:33:31,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:33:33,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:33:35,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:33:43,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:33:47,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:33:50,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:33:52,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:33:54,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:33:56,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:33:58,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:33:58,556 INFO L93 Difference]: Finished difference Result 48564 states and 72851 transitions. [2022-11-23 15:33:58,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:33:58,556 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 [2022-11-23 15:33:58,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:33:58,798 INFO L225 Difference]: With dead ends: 48564 [2022-11-23 15:33:58,798 INFO L226 Difference]: Without dead ends: 48562 [2022-11-23 15:33:58,828 INFO L412 NwaCegarLoop]: 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 [2022-11-23 15:33:58,829 INFO L413 NwaCegarLoop]: 11092 mSDtfsCounter, 6354 mSDsluCounter, 31264 mSDsCounter, 0 mSdLazyCounter, 3149 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6365 SdHoareTripleChecker+Valid, 42356 SdHoareTripleChecker+Invalid, 3157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3149 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:33:58,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6365 Valid, 42356 Invalid, 3157 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 3149 Invalid, 6 Unknown, 0 Unchecked, 44.2s Time] [2022-11-23 15:33:58,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48562 states. [2022-11-23 15:34:01,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48562 to 48550. [2022-11-23 15:34:01,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48550 states, 30128 states have (on average 1.3101765799256506) internal successors, (39473), 31153 states have internal predecessors, (39473), 16330 states have call successors, (16330), 2123 states have call predecessors, (16330), 2089 states have return successors, (17033), 15990 states have call predecessors, (17033), 16303 states have call successors, (17033) [2022-11-23 15:34:02,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48550 states to 48550 states and 72836 transitions. [2022-11-23 15:34:02,509 INFO L78 Accepts]: Start accepts. Automaton has 48550 states and 72836 transitions. Word has length 65 [2022-11-23 15:34:02,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:34:02,510 INFO L495 AbstractCegarLoop]: Abstraction has 48550 states and 72836 transitions. [2022-11-23 15:34:02,510 INFO L496 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) [2022-11-23 15:34:02,510 INFO L276 IsEmpty]: Start isEmpty. Operand 48550 states and 72836 transitions. [2022-11-23 15:34:02,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-23 15:34:02,511 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:34:02,511 INFO L195 NwaCegarLoop]: 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] [2022-11-23 15:34:02,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 15:34:02,512 INFO L420 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)] === [2022-11-23 15:34:02,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:34:02,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1466902006, now seen corresponding path program 1 times [2022-11-23 15:34:02,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:34:02,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754195814] [2022-11-23 15:34:02,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:34:02,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:34:03,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:34:04,837 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-11-23 15:34:04,837 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:34:04,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754195814] [2022-11-23 15:34:04,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754195814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:34:04,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:34:04,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:34:04,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783042397] [2022-11-23 15:34:04,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:34:04,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:34:04,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:34:04,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:34:04,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:34:04,840 INFO L87 Difference]: Start difference. First operand 48550 states and 72836 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) [2022-11-23 15:34:07,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:34:17,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:34:22,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:34:24,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:34:26,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:34:27,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:34:29,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:34:45,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:34:48,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:34:49,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:34:49,902 INFO L93 Difference]: Finished difference Result 48568 states and 72854 transitions. [2022-11-23 15:34:49,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:34:49,902 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 [2022-11-23 15:34:49,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:34:50,077 INFO L225 Difference]: With dead ends: 48568 [2022-11-23 15:34:50,078 INFO L226 Difference]: Without dead ends: 48566 [2022-11-23 15:34:50,097 INFO L412 NwaCegarLoop]: 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 [2022-11-23 15:34:50,098 INFO L413 NwaCegarLoop]: 11034 mSDtfsCounter, 6354 mSDsluCounter, 31148 mSDsCounter, 0 mSdLazyCounter, 3143 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6364 SdHoareTripleChecker+Valid, 42182 SdHoareTripleChecker+Invalid, 3151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3143 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:34:50,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6364 Valid, 42182 Invalid, 3151 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 3143 Invalid, 6 Unknown, 0 Unchecked, 43.2s Time] [2022-11-23 15:34:50,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48566 states. [2022-11-23 15:34:53,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48566 to 48554. [2022-11-23 15:34:53,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48554 states, 30131 states have (on average 1.310145697122565) internal successors, (39476), 31156 states have internal predecessors, (39476), 16330 states have call successors, (16330), 2124 states have call predecessors, (16330), 2090 states have return successors, (17033), 15990 states have call predecessors, (17033), 16303 states have call successors, (17033) [2022-11-23 15:34:53,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48554 states to 48554 states and 72839 transitions. [2022-11-23 15:34:53,752 INFO L78 Accepts]: Start accepts. Automaton has 48554 states and 72839 transitions. Word has length 70 [2022-11-23 15:34:53,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:34:53,753 INFO L495 AbstractCegarLoop]: Abstraction has 48554 states and 72839 transitions. [2022-11-23 15:34:53,753 INFO L496 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) [2022-11-23 15:34:53,753 INFO L276 IsEmpty]: Start isEmpty. Operand 48554 states and 72839 transitions. [2022-11-23 15:34:53,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-23 15:34:53,755 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:34:53,755 INFO L195 NwaCegarLoop]: 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] [2022-11-23 15:34:53,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 15:34:53,756 INFO L420 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)] === [2022-11-23 15:34:53,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:34:53,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1013455390, now seen corresponding path program 1 times [2022-11-23 15:34:53,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:34:53,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849583466] [2022-11-23 15:34:53,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:34:53,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:34:54,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:34:55,907 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-11-23 15:34:55,907 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:34:55,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849583466] [2022-11-23 15:34:55,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849583466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:34:55,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:34:55,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:34:55,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260194343] [2022-11-23 15:34:55,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:34:55,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:34:55,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:34:55,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:34:55,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:34:55,910 INFO L87 Difference]: Start difference. First operand 48554 states and 72839 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) [2022-11-23 15:34:59,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:35:08,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:35:13,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:35:15,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:35:17,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:35:19,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:35:22,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:35:24,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:35:26,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:35:36,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:35:41,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:35:43,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:35:45,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:35:46,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:35:48,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:35:48,012 INFO L93 Difference]: Finished difference Result 48572 states and 72857 transitions. [2022-11-23 15:35:48,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:35:48,013 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 [2022-11-23 15:35:48,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:35:48,221 INFO L225 Difference]: With dead ends: 48572 [2022-11-23 15:35:48,221 INFO L226 Difference]: Without dead ends: 48570 [2022-11-23 15:35:48,242 INFO L412 NwaCegarLoop]: 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 [2022-11-23 15:35:48,242 INFO L413 NwaCegarLoop]: 11082 mSDtfsCounter, 6350 mSDsluCounter, 31244 mSDsCounter, 0 mSdLazyCounter, 3145 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6359 SdHoareTripleChecker+Valid, 42326 SdHoareTripleChecker+Invalid, 3154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3145 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:35:48,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6359 Valid, 42326 Invalid, 3154 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3145 Invalid, 7 Unknown, 0 Unchecked, 50.3s Time] [2022-11-23 15:35:48,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48570 states. [2022-11-23 15:35:53,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48570 to 48558. [2022-11-23 15:35:53,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48558 states, 30134 states have (on average 1.3101148204685737) internal successors, (39479), 31159 states have internal predecessors, (39479), 16330 states have call successors, (16330), 2125 states have call predecessors, (16330), 2091 states have return successors, (17033), 15990 states have call predecessors, (17033), 16303 states have call successors, (17033) [2022-11-23 15:35:53,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48558 states to 48558 states and 72842 transitions. [2022-11-23 15:35:53,608 INFO L78 Accepts]: Start accepts. Automaton has 48558 states and 72842 transitions. Word has length 81 [2022-11-23 15:35:53,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:35:53,608 INFO L495 AbstractCegarLoop]: Abstraction has 48558 states and 72842 transitions. [2022-11-23 15:35:53,609 INFO L496 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) [2022-11-23 15:35:53,609 INFO L276 IsEmpty]: Start isEmpty. Operand 48558 states and 72842 transitions. [2022-11-23 15:35:53,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-23 15:35:53,610 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:35:53,610 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 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] [2022-11-23 15:35:53,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 15:35:53,611 INFO L420 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)] === [2022-11-23 15:35:53,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:35:53,612 INFO L85 PathProgramCache]: Analyzing trace with hash 2027158174, now seen corresponding path program 1 times [2022-11-23 15:35:53,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:35:53,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680764214] [2022-11-23 15:35:53,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:35:53,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:35:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:35:55,672 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-11-23 15:35:55,672 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:35:55,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680764214] [2022-11-23 15:35:55,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680764214] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:35:55,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:35:55,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:35:55,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128112318] [2022-11-23 15:35:55,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:35:55,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:35:55,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:35:55,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:35:55,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:35:55,674 INFO L87 Difference]: Start difference. First operand 48558 states and 72842 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, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 15:35:59,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:36:04,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:36:13,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:36:15,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:36:17,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:36:19,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:36:21,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:36:29,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:36:37,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:36:38,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:36:40,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:36:43,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:36:45,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:36:45,075 INFO L93 Difference]: Finished difference Result 48576 states and 72860 transitions. [2022-11-23 15:36:45,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:36:45,076 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, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 86 [2022-11-23 15:36:45,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:36:45,254 INFO L225 Difference]: With dead ends: 48576 [2022-11-23 15:36:45,254 INFO L226 Difference]: Without dead ends: 48574 [2022-11-23 15:36:45,274 INFO L412 NwaCegarLoop]: 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 [2022-11-23 15:36:45,275 INFO L413 NwaCegarLoop]: 11094 mSDtfsCounter, 6350 mSDsluCounter, 31268 mSDsCounter, 0 mSdLazyCounter, 3147 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6358 SdHoareTripleChecker+Valid, 42362 SdHoareTripleChecker+Invalid, 3157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3147 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:36:45,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6358 Valid, 42362 Invalid, 3157 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3147 Invalid, 8 Unknown, 0 Unchecked, 47.6s Time] [2022-11-23 15:36:45,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48574 states. [2022-11-23 15:36:48,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48574 to 48562. [2022-11-23 15:36:48,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48562 states, 30137 states have (on average 1.3100839499618409) internal successors, (39482), 31162 states have internal predecessors, (39482), 16330 states have call successors, (16330), 2126 states have call predecessors, (16330), 2092 states have return successors, (17033), 15990 states have call predecessors, (17033), 16303 states have call successors, (17033) [2022-11-23 15:36:48,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48562 states to 48562 states and 72845 transitions. [2022-11-23 15:36:48,930 INFO L78 Accepts]: Start accepts. Automaton has 48562 states and 72845 transitions. Word has length 86 [2022-11-23 15:36:48,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:36:48,931 INFO L495 AbstractCegarLoop]: Abstraction has 48562 states and 72845 transitions. [2022-11-23 15:36:48,931 INFO L496 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, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 15:36:48,931 INFO L276 IsEmpty]: Start isEmpty. Operand 48562 states and 72845 transitions. [2022-11-23 15:36:48,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-23 15:36:48,933 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:36:48,933 INFO L195 NwaCegarLoop]: 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] [2022-11-23 15:36:48,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 15:36:48,934 INFO L420 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)] === [2022-11-23 15:36:48,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:36:48,935 INFO L85 PathProgramCache]: Analyzing trace with hash 183538466, now seen corresponding path program 1 times [2022-11-23 15:36:48,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:36:48,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161514175] [2022-11-23 15:36:48,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:36:48,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:36:49,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:36:50,820 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-11-23 15:36:50,820 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:36:50,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161514175] [2022-11-23 15:36:50,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161514175] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:36:50,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:36:50,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:36:50,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966422130] [2022-11-23 15:36:50,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:36:50,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:36:50,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:36:50,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:36:50,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:36:50,823 INFO L87 Difference]: Start difference. First operand 48562 states and 72845 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) [2022-11-23 15:36:53,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:36:55,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:37:07,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:37:09,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:37:11,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:37:13,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:37:15,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:37:27,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:37:31,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:37:33,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:37:34,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:37:34,885 INFO L93 Difference]: Finished difference Result 48580 states and 72863 transitions. [2022-11-23 15:37:34,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:37:34,885 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 [2022-11-23 15:37:34,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:37:35,063 INFO L225 Difference]: With dead ends: 48580 [2022-11-23 15:37:35,063 INFO L226 Difference]: Without dead ends: 48578 [2022-11-23 15:37:35,083 INFO L412 NwaCegarLoop]: 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 [2022-11-23 15:37:35,084 INFO L413 NwaCegarLoop]: 11082 mSDtfsCounter, 6350 mSDsluCounter, 31244 mSDsCounter, 0 mSdLazyCounter, 3139 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6357 SdHoareTripleChecker+Valid, 42326 SdHoareTripleChecker+Invalid, 3148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3139 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:37:35,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6357 Valid, 42326 Invalid, 3148 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 3139 Invalid, 7 Unknown, 0 Unchecked, 42.2s Time] [2022-11-23 15:37:35,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48578 states. [2022-11-23 15:37:38,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48578 to 48566. [2022-11-23 15:37:38,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48566 states, 30140 states have (on average 1.3100530856005308) internal successors, (39485), 31165 states have internal predecessors, (39485), 16330 states have call successors, (16330), 2127 states have call predecessors, (16330), 2093 states have return successors, (17033), 15990 states have call predecessors, (17033), 16303 states have call successors, (17033) [2022-11-23 15:37:38,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48566 states to 48566 states and 72848 transitions. [2022-11-23 15:37:38,679 INFO L78 Accepts]: Start accepts. Automaton has 48566 states and 72848 transitions. Word has length 91 [2022-11-23 15:37:38,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:37:38,680 INFO L495 AbstractCegarLoop]: Abstraction has 48566 states and 72848 transitions. [2022-11-23 15:37:38,680 INFO L496 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) [2022-11-23 15:37:38,680 INFO L276 IsEmpty]: Start isEmpty. Operand 48566 states and 72848 transitions. [2022-11-23 15:37:38,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-23 15:37:38,682 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:37:38,682 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 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] [2022-11-23 15:37:38,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 15:37:38,683 INFO L420 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)] === [2022-11-23 15:37:38,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:37:38,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1951203466, now seen corresponding path program 1 times [2022-11-23 15:37:38,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:37:38,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400731716] [2022-11-23 15:37:38,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:37:38,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:37:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:37:40,608 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-11-23 15:37:40,608 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:37:40,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400731716] [2022-11-23 15:37:40,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400731716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:37:40,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:37:40,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:37:40,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356353216] [2022-11-23 15:37:40,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:37:40,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:37:40,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:37:40,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:37:40,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:37:40,611 INFO L87 Difference]: Start difference. First operand 48566 states and 72848 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, (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) [2022-11-23 15:37:43,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:37:52,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:37:58,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:38:00,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:38:06,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:38:13,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:38:18,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:38:19,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:38:22,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:38:24,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:38:24,134 INFO L93 Difference]: Finished difference Result 48584 states and 72866 transitions. [2022-11-23 15:38:24,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:38:24,135 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, (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 90 [2022-11-23 15:38:24,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:38:24,301 INFO L225 Difference]: With dead ends: 48584 [2022-11-23 15:38:24,301 INFO L226 Difference]: Without dead ends: 48582 [2022-11-23 15:38:24,317 INFO L412 NwaCegarLoop]: 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 [2022-11-23 15:38:24,318 INFO L413 NwaCegarLoop]: 11093 mSDtfsCounter, 6354 mSDsluCounter, 31266 mSDsCounter, 0 mSdLazyCounter, 3147 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6360 SdHoareTripleChecker+Valid, 42359 SdHoareTripleChecker+Invalid, 3154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3147 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:38:24,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6360 Valid, 42359 Invalid, 3154 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3147 Invalid, 5 Unknown, 0 Unchecked, 41.6s Time] [2022-11-23 15:38:24,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48582 states. [2022-11-23 15:38:27,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48582 to 48570. [2022-11-23 15:38:27,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48570 states, 30143 states have (on average 1.3100222273828086) internal successors, (39488), 31168 states have internal predecessors, (39488), 16330 states have call successors, (16330), 2128 states have call predecessors, (16330), 2094 states have return successors, (17033), 15990 states have call predecessors, (17033), 16303 states have call successors, (17033) [2022-11-23 15:38:28,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48570 states to 48570 states and 72851 transitions. [2022-11-23 15:38:28,023 INFO L78 Accepts]: Start accepts. Automaton has 48570 states and 72851 transitions. Word has length 90 [2022-11-23 15:38:28,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:38:28,024 INFO L495 AbstractCegarLoop]: Abstraction has 48570 states and 72851 transitions. [2022-11-23 15:38:28,024 INFO L496 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, (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) [2022-11-23 15:38:28,024 INFO L276 IsEmpty]: Start isEmpty. Operand 48570 states and 72851 transitions. [2022-11-23 15:38:28,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-23 15:38:28,026 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:38:28,027 INFO L195 NwaCegarLoop]: 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] [2022-11-23 15:38:28,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-23 15:38:28,027 INFO L420 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)] === [2022-11-23 15:38:28,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:38:28,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1849987126, now seen corresponding path program 1 times [2022-11-23 15:38:28,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:38:28,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401553238] [2022-11-23 15:38:28,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:28,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:38:28,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:29,883 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2022-11-23 15:38:29,884 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:38:29,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401553238] [2022-11-23 15:38:29,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401553238] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:38:29,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:38:29,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:38:29,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797703629] [2022-11-23 15:38:29,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:38:29,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:38:29,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:38:29,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:38:29,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:38:29,886 INFO L87 Difference]: Start difference. First operand 48570 states and 72851 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) [2022-11-23 15:38:33,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:38:37,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:38:46,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:38:48,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:38:52,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:38:54,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:39:02,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:39:06,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:39:08,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:39:10,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:39:12,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:39:12,606 INFO L93 Difference]: Finished difference Result 48588 states and 72869 transitions. [2022-11-23 15:39:12,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:39:12,607 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, (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 95 [2022-11-23 15:39:12,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:39:12,773 INFO L225 Difference]: With dead ends: 48588 [2022-11-23 15:39:12,773 INFO L226 Difference]: Without dead ends: 48586 [2022-11-23 15:39:12,794 INFO L412 NwaCegarLoop]: 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 [2022-11-23 15:39:12,795 INFO L413 NwaCegarLoop]: 11092 mSDtfsCounter, 6354 mSDsluCounter, 31264 mSDsCounter, 0 mSdLazyCounter, 3148 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6359 SdHoareTripleChecker+Valid, 42356 SdHoareTripleChecker+Invalid, 3155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3148 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.9s IncrementalHoareTripleChecker+Time [2022-11-23 15:39:12,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6359 Valid, 42356 Invalid, 3155 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3148 Invalid, 5 Unknown, 0 Unchecked, 40.9s Time] [2022-11-23 15:39:12,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48586 states. [2022-11-23 15:39:16,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48586 to 48574. [2022-11-23 15:39:16,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48574 states, 30146 states have (on average 1.30999137530684) internal successors, (39491), 31171 states have internal predecessors, (39491), 16330 states have call successors, (16330), 2129 states have call predecessors, (16330), 2095 states have return successors, (17033), 15990 states have call predecessors, (17033), 16303 states have call successors, (17033) [2022-11-23 15:39:16,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48574 states to 48574 states and 72854 transitions. [2022-11-23 15:39:16,550 INFO L78 Accepts]: Start accepts. Automaton has 48574 states and 72854 transitions. Word has length 95 [2022-11-23 15:39:16,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:39:16,550 INFO L495 AbstractCegarLoop]: Abstraction has 48574 states and 72854 transitions. [2022-11-23 15:39:16,551 INFO L496 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, (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) [2022-11-23 15:39:16,551 INFO L276 IsEmpty]: Start isEmpty. Operand 48574 states and 72854 transitions. [2022-11-23 15:39:16,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-23 15:39:16,553 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:39:16,553 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:39:16,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-23 15:39:16,554 INFO L420 AbstractCegarLoop]: === Iteration 14 === 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)] === [2022-11-23 15:39:16,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:39:16,555 INFO L85 PathProgramCache]: Analyzing trace with hash -759861474, now seen corresponding path program 1 times [2022-11-23 15:39:16,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:39:16,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254167396] [2022-11-23 15:39:16,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:39:16,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:39:16,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:39:18,438 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-11-23 15:39:18,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:39:18,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254167396] [2022-11-23 15:39:18,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254167396] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:39:18,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:39:18,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:39:18,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533374321] [2022-11-23 15:39:18,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:39:18,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:39:18,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:39:18,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:39:18,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:39:18,441 INFO L87 Difference]: Start difference. First operand 48574 states and 72854 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, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-23 15:39:21,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:39:23,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:39:37,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:39:39,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:39:41,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:39:43,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:39:55,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []