./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4583a47-41b7-444e-9c35-4e41e7789de0/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4583a47-41b7-444e-9c35-4e41e7789de0/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4583a47-41b7-444e-9c35-4e41e7789de0/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4583a47-41b7-444e-9c35-4e41e7789de0/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4583a47-41b7-444e-9c35-4e41e7789de0/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4583a47-41b7-444e-9c35-4e41e7789de0/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bc38af6d85a1ea18be4ba0c188eed765e9a84460b9b23510e792660c4b3625d7 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:33:46,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:33:46,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:33:46,935 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:33:46,936 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:33:46,938 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:33:46,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:33:46,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:33:46,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:33:46,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:33:46,949 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:33:46,951 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:33:46,951 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:33:46,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:33:46,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:33:46,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:33:46,959 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:33:46,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:33:46,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:33:46,966 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:33:46,968 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:33:46,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:33:46,980 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:33:46,981 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:33:46,985 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:33:46,985 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:33:46,985 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:33:46,986 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:33:46,987 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:33:46,988 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:33:46,988 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:33:46,989 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:33:46,990 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:33:46,991 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:33:46,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:33:46,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:33:46,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:33:46,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:33:46,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:33:46,996 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:33:46,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:33:46,998 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4583a47-41b7-444e-9c35-4e41e7789de0/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 18:33:47,027 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:33:47,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:33:47,028 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:33:47,028 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:33:47,029 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:33:47,029 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:33:47,030 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:33:47,030 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:33:47,030 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:33:47,031 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:33:47,031 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:33:47,031 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:33:47,031 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:33:47,032 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:33:47,032 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:33:47,032 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:33:47,032 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:33:47,033 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:33:47,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:33:47,034 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:33:47,034 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:33:47,034 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:33:47,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:33:47,035 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:33:47,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:33:47,035 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:33:47,036 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:33:47,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:33:47,036 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:33:47,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:33:47,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:33:47,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:33:47,037 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:33:47,038 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:33:47,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:33:47,038 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:33:47,038 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:33:47,038 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:33:47,039 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4583a47-41b7-444e-9c35-4e41e7789de0/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4583a47-41b7-444e-9c35-4e41e7789de0/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc38af6d85a1ea18be4ba0c188eed765e9a84460b9b23510e792660c4b3625d7 [2021-11-25 18:33:47,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:33:47,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:33:47,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:33:47,329 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:33:47,330 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:33:47,332 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4583a47-41b7-444e-9c35-4e41e7789de0/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i [2021-11-25 18:33:47,437 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4583a47-41b7-444e-9c35-4e41e7789de0/bin/utaipan-eEHZpOm5b7/data/fc006343d/ff320d1c619e452caa484100a925399d/FLAG51cbfa7ae [2021-11-25 18:33:48,557 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:33:48,558 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4583a47-41b7-444e-9c35-4e41e7789de0/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i [2021-11-25 18:33:48,634 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4583a47-41b7-444e-9c35-4e41e7789de0/bin/utaipan-eEHZpOm5b7/data/fc006343d/ff320d1c619e452caa484100a925399d/FLAG51cbfa7ae [2021-11-25 18:33:48,796 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4583a47-41b7-444e-9c35-4e41e7789de0/bin/utaipan-eEHZpOm5b7/data/fc006343d/ff320d1c619e452caa484100a925399d [2021-11-25 18:33:48,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:33:48,802 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:33:48,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:33:48,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:33:48,812 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:33:48,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:33:48" (1/1) ... [2021-11-25 18:33:48,815 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e21481a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:48, skipping insertion in model container [2021-11-25 18:33:48,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:33:48" (1/1) ... [2021-11-25 18:33:48,824 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:33:49,158 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:33:55,940 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4583a47-41b7-444e-9c35-4e41e7789de0/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i[552482,552495] [2021-11-25 18:33:55,944 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4583a47-41b7-444e-9c35-4e41e7789de0/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i[552651,552664] [2021-11-25 18:33:55,944 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4583a47-41b7-444e-9c35-4e41e7789de0/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i[552818,552831] [2021-11-25 18:33:55,945 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4583a47-41b7-444e-9c35-4e41e7789de0/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i[552986,552999] [2021-11-25 18:33:55,980 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:33:56,056 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:33:56,674 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4583a47-41b7-444e-9c35-4e41e7789de0/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i[552482,552495] [2021-11-25 18:33:56,675 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4583a47-41b7-444e-9c35-4e41e7789de0/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i[552651,552664] [2021-11-25 18:33:56,675 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4583a47-41b7-444e-9c35-4e41e7789de0/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i[552818,552831] [2021-11-25 18:33:56,677 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4583a47-41b7-444e-9c35-4e41e7789de0/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i[552986,552999] [2021-11-25 18:33:56,693 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:33:57,210 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:33:57,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:57 WrapperNode [2021-11-25 18:33:57,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:33:57,212 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:33:57,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:33:57,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:33:57,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:57" (1/1) ... [2021-11-25 18:33:57,456 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:57" (1/1) ... [2021-11-25 18:33:57,940 INFO L137 Inliner]: procedures = 703, calls = 5887, calls flagged for inlining = 364, calls inlined = 322, statements flattened = 10884 [2021-11-25 18:33:57,941 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:33:57,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:33:57,943 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:33:57,944 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:33:57,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:57" (1/1) ... [2021-11-25 18:33:57,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:57" (1/1) ... [2021-11-25 18:33:58,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:57" (1/1) ... [2021-11-25 18:33:58,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:57" (1/1) ... [2021-11-25 18:33:58,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:57" (1/1) ... [2021-11-25 18:33:58,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:57" (1/1) ... [2021-11-25 18:33:58,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:57" (1/1) ... [2021-11-25 18:33:58,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:33:58,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:33:58,641 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:33:58,641 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:33:58,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:57" (1/1) ... [2021-11-25 18:33:58,651 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:33:58,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4583a47-41b7-444e-9c35-4e41e7789de0/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:33:58,682 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4583a47-41b7-444e-9c35-4e41e7789de0/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:33:58,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4583a47-41b7-444e-9c35-4e41e7789de0/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:33:58,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_93 [2021-11-25 18:33:58,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_93 [2021-11-25 18:33:58,736 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-25 18:33:58,736 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-25 18:33:58,736 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_irq_disable [2021-11-25 18:33:58,737 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_irq_disable [2021-11-25 18:33:58,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 18:33:58,737 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 18:33:58,737 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-25 18:33:58,737 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-25 18:33:58,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_80 [2021-11-25 18:33:58,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_80 [2021-11-25 18:33:58,738 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_intr [2021-11-25 18:33:58,738 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_intr [2021-11-25 18:33:58,738 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-25 18:33:58,739 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-25 18:33:58,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 18:33:58,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 18:33:58,739 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_minnow_platform_init [2021-11-25 18:33:58,739 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_minnow_platform_init [2021-11-25 18:33:58,740 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_open [2021-11-25 18:33:58,740 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_open [2021-11-25 18:33:58,740 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2021-11-25 18:33:58,740 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2021-11-25 18:33:58,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 18:33:58,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 18:33:58,741 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_reinit_locked [2021-11-25 18:33:58,741 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_reinit_locked [2021-11-25 18:33:58,742 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_hal_power_up_phy [2021-11-25 18:33:58,742 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_hal_power_up_phy [2021-11-25 18:33:58,743 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_setup_tx_resources [2021-11-25 18:33:58,743 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_setup_tx_resources [2021-11-25 18:33:58,743 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-25 18:33:58,743 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-25 18:33:58,744 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-25 18:33:58,744 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-25 18:33:58,744 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-25 18:33:58,744 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-25 18:33:58,745 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_netpoll [2021-11-25 18:33:58,745 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_netpoll [2021-11-25 18:33:58,745 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_plat_init_hw [2021-11-25 18:33:58,745 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_plat_init_hw [2021-11-25 18:33:58,746 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_free_rx_resources [2021-11-25 18:33:58,746 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_free_rx_resources [2021-11-25 18:33:58,747 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_free_tx_resources [2021-11-25 18:33:58,747 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_free_tx_resources [2021-11-25 18:33:58,748 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-25 18:33:58,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-25 18:33:58,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_pch_gbe_exit_module_17_2 [2021-11-25 18:33:58,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_pch_gbe_exit_module_17_2 [2021-11-25 18:33:58,748 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-25 18:33:58,749 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-25 18:33:58,749 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 18:33:58,749 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 18:33:58,750 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2021-11-25 18:33:58,750 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2021-11-25 18:33:58,750 INFO L130 BoogieDeclarations]: Found specification of procedure pch_set_station_address [2021-11-25 18:33:58,750 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_set_station_address [2021-11-25 18:33:58,750 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-25 18:33:58,751 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-25 18:33:58,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 18:33:58,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 18:33:58,751 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mdio_write [2021-11-25 18:33:58,752 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mdio_write [2021-11-25 18:33:58,752 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-25 18:33:58,752 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-25 18:33:58,752 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-25 18:33:58,752 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-25 18:33:58,753 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-25 18:33:58,753 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-25 18:33:58,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 18:33:58,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 18:33:58,753 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-25 18:33:58,754 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-25 18:33:58,754 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-25 18:33:58,754 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-25 18:33:58,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:33:58,755 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_power_up [2021-11-25 18:33:58,755 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_power_up [2021-11-25 18:33:58,756 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-25 18:33:58,756 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-25 18:33:58,756 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_resume [2021-11-25 18:33:58,756 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_resume [2021-11-25 18:33:58,757 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 18:33:58,757 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 18:33:58,758 INFO L130 BoogieDeclarations]: Found specification of procedure pch_ch_event_write [2021-11-25 18:33:58,758 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_ch_event_write [2021-11-25 18:33:58,759 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-11-25 18:33:58,759 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-11-25 18:33:58,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 18:33:58,759 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-25 18:33:58,759 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-25 18:33:58,759 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 18:33:58,760 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 18:33:58,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-25 18:33:58,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-25 18:33:58,760 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-25 18:33:58,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-25 18:33:58,761 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_enable_dma_rx [2021-11-25 18:33:58,761 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_enable_dma_rx [2021-11-25 18:33:58,761 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_configure_rx [2021-11-25 18:33:58,762 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_configure_rx [2021-11-25 18:33:58,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 18:33:58,762 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_wait_clr_bit [2021-11-25 18:33:58,763 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_wait_clr_bit [2021-11-25 18:33:58,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 18:33:58,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 18:33:58,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:33:58,767 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-25 18:33:58,767 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-25 18:33:58,768 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2021-11-25 18:33:58,769 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2021-11-25 18:33:58,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 18:33:58,769 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 18:33:58,769 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_remove [2021-11-25 18:33:58,776 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_remove [2021-11-25 18:33:58,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-25 18:33:58,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-25 18:33:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-25 18:33:58,777 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-25 18:33:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-25 18:33:58,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-25 18:33:58,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 18:33:58,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 18:33:58,778 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-25 18:33:58,778 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-25 18:33:58,778 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_force_mac_fc [2021-11-25 18:33:58,779 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_force_mac_fc [2021-11-25 18:33:58,779 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_suspend [2021-11-25 18:33:58,779 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_suspend [2021-11-25 18:33:58,779 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-25 18:33:58,779 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-25 18:33:58,779 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-25 18:33:58,780 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-25 18:33:58,780 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-25 18:33:58,780 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-25 18:33:58,780 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_set_value [2021-11-25 18:33:58,780 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_set_value [2021-11-25 18:33:58,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-25 18:33:58,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-25 18:33:58,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 18:33:58,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-25 18:33:58,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-25 18:33:58,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-25 18:33:58,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-25 18:33:58,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-25 18:33:58,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-25 18:33:58,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2021-11-25 18:33:58,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2021-11-25 18:33:58,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-25 18:33:58,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-25 18:33:58,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-25 18:33:58,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-25 18:33:58,783 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-25 18:33:58,783 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-25 18:33:58,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:33:58,784 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-25 18:33:58,784 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-25 18:33:58,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 18:33:58,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 18:33:58,785 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 18:33:58,785 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 18:33:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 18:33:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 18:33:58,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 18:33:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-25 18:33:58,786 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-25 18:33:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 18:33:58,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 18:33:58,787 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-25 18:33:58,787 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-25 18:33:58,787 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2021-11-25 18:33:58,787 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2021-11-25 18:33:58,787 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-25 18:33:58,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-25 18:33:58,788 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_set_wol_event [2021-11-25 18:33:58,788 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_set_wol_event [2021-11-25 18:33:58,788 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 18:33:58,788 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 18:33:58,788 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_ctrl_miim [2021-11-25 18:33:58,788 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_ctrl_miim [2021-11-25 18:33:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-25 18:33:58,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-25 18:33:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_get_regs_len [2021-11-25 18:33:58,789 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_get_regs_len [2021-11-25 18:33:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-25 18:33:58,789 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-25 18:33:58,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:33:58,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:33:58,790 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_alloc_rx_buffers [2021-11-25 18:33:58,790 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_alloc_rx_buffers [2021-11-25 18:33:58,790 INFO L130 BoogieDeclarations]: Found specification of procedure __pch_gbe_suspend [2021-11-25 18:33:58,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __pch_gbe_suspend [2021-11-25 18:33:58,791 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-25 18:33:58,791 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-25 18:33:58,791 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_plat_get_bus_info [2021-11-25 18:33:58,791 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_plat_get_bus_info [2021-11-25 18:33:58,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-25 18:33:58,791 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-25 18:33:58,792 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_power_down [2021-11-25 18:33:58,792 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_power_down [2021-11-25 18:33:58,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 18:33:58,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 18:33:58,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 18:33:58,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 18:33:58,793 INFO L130 BoogieDeclarations]: Found specification of procedure csum_tcpudp_magic [2021-11-25 18:33:58,793 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_tcpudp_magic [2021-11-25 18:33:58,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 18:33:58,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 18:33:58,793 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_update_stats [2021-11-25 18:33:58,793 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_update_stats [2021-11-25 18:33:58,794 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-25 18:33:58,794 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-25 18:33:58,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2021-11-25 18:33:58,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2021-11-25 18:33:58,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-25 18:33:58,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-25 18:33:58,795 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum [2021-11-25 18:33:58,795 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum [2021-11-25 18:33:58,795 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mdio_read [2021-11-25 18:33:58,795 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mdio_read [2021-11-25 18:33:58,795 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_clean_rx_ring [2021-11-25 18:33:58,795 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_clean_rx_ring [2021-11-25 18:33:58,796 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-25 18:33:58,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-25 18:33:58,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_pch_gbe_tx_ring [2021-11-25 18:33:58,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_pch_gbe_tx_ring [2021-11-25 18:33:58,796 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_up [2021-11-25 18:33:58,796 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_up [2021-11-25 18:33:58,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 18:33:58,797 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 18:33:58,797 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-25 18:33:58,798 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-25 18:33:58,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-25 18:33:58,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-25 18:33:58,802 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_gset [2021-11-25 18:33:58,802 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_gset [2021-11-25 18:33:58,803 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_clean_tx_ring [2021-11-25 18:33:58,803 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_clean_tx_ring [2021-11-25 18:33:58,803 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_reset [2021-11-25 18:33:58,803 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_reset [2021-11-25 18:33:58,803 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-25 18:33:58,804 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-25 18:33:58,805 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2021-11-25 18:33:58,806 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2021-11-25 18:33:58,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_stop_14_2 [2021-11-25 18:33:58,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_stop_14_2 [2021-11-25 18:33:58,806 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_stop [2021-11-25 18:33:58,806 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_stop [2021-11-25 18:33:58,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:33:58,807 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_ktime [2021-11-25 18:33:58,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_ktime [2021-11-25 18:33:58,807 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-25 18:33:58,807 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-25 18:33:58,807 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-25 18:33:58,807 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-25 18:33:58,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 18:33:58,808 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_io_resume [2021-11-25 18:33:58,808 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_io_resume [2021-11-25 18:33:58,808 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-25 18:33:58,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-25 18:33:58,808 INFO L130 BoogieDeclarations]: Found specification of procedure pch_ch_event_read [2021-11-25 18:33:58,808 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_ch_event_read [2021-11-25 18:33:58,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 18:33:58,809 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-25 18:33:58,809 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-25 18:33:58,809 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-25 18:33:58,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-25 18:33:58,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-25 18:33:58,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-25 18:33:58,810 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_nway_reset [2021-11-25 18:33:58,810 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_nway_reset [2021-11-25 18:33:58,810 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-25 18:33:58,810 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-25 18:33:58,810 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-25 18:33:58,810 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-25 18:33:58,810 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_irq_enable [2021-11-25 18:33:58,811 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_irq_enable [2021-11-25 18:33:58,811 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 18:33:58,811 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 18:33:58,811 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_hw_reset [2021-11-25 18:33:58,811 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_hw_reset [2021-11-25 18:33:58,811 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_tx_timeout [2021-11-25 18:33:58,811 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_tx_timeout [2021-11-25 18:33:58,812 INFO L130 BoogieDeclarations]: Found specification of procedure mii_link_ok [2021-11-25 18:33:58,812 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_link_ok [2021-11-25 18:33:58,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 18:33:58,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 18:33:58,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-25 18:33:58,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-25 18:33:58,813 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_sset [2021-11-25 18:33:58,813 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_sset [2021-11-25 18:33:58,813 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_hal_power_down_phy [2021-11-25 18:33:58,813 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_hal_power_down_phy [2021-11-25 18:33:58,813 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-25 18:33:58,813 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-25 18:33:58,813 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_set_mode [2021-11-25 18:33:58,814 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_set_mode [2021-11-25 18:33:58,814 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-25 18:33:58,814 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-25 18:33:58,814 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-25 18:33:58,814 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-25 18:33:58,814 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_setup_rx_resources [2021-11-25 18:33:58,814 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_setup_rx_resources [2021-11-25 18:33:58,815 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-25 18:33:58,815 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-25 18:33:58,815 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 18:33:58,815 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 18:33:58,815 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_validate_option [2021-11-25 18:33:58,815 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_validate_option [2021-11-25 18:33:58,815 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_reset_hw [2021-11-25 18:33:58,816 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_reset_hw [2021-11-25 18:33:58,816 INFO L130 BoogieDeclarations]: Found specification of procedure udp_hdr [2021-11-25 18:33:58,816 INFO L138 BoogieDeclarations]: Found implementation of procedure udp_hdr [2021-11-25 18:33:58,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:33:58,816 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_setup_rctl [2021-11-25 18:33:58,816 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_setup_rctl [2021-11-25 18:33:58,816 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_sw_reset [2021-11-25 18:33:58,817 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_sw_reset [2021-11-25 18:33:58,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 18:33:58,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 18:33:58,817 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_hal_phy_hw_reset [2021-11-25 18:33:58,817 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_hal_phy_hw_reset [2021-11-25 18:33:58,817 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_write_reg_miic [2021-11-25 18:33:58,817 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_write_reg_miic [2021-11-25 18:33:58,818 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-25 18:33:58,818 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-25 18:33:58,818 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-25 18:33:58,818 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-25 18:33:58,818 INFO L130 BoogieDeclarations]: Found specification of procedure pch_ch_control_write [2021-11-25 18:33:58,818 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_ch_control_write [2021-11-25 18:33:58,819 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_set_multi [2021-11-25 18:33:58,819 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_set_multi [2021-11-25 18:33:58,819 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_shutdown [2021-11-25 18:33:58,819 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_shutdown [2021-11-25 18:33:58,819 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-25 18:33:58,819 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-25 18:33:58,819 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-25 18:33:58,820 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-25 18:33:58,820 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_read_reg_miic [2021-11-25 18:33:58,820 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_read_reg_miic [2021-11-25 18:33:58,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_95 [2021-11-25 18:33:58,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_95 [2021-11-25 18:33:58,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 18:33:58,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 18:33:58,821 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_read_mac_addr [2021-11-25 18:33:58,821 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_read_mac_addr [2021-11-25 18:33:58,821 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_set_rgmii_ctrl [2021-11-25 18:33:58,821 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_set_rgmii_ctrl [2021-11-25 18:33:58,821 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2021-11-25 18:33:58,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2021-11-25 18:33:58,822 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_down [2021-11-25 18:33:58,822 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_down [2021-11-25 18:33:58,822 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_free_irq [2021-11-25 18:33:58,822 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_free_irq [2021-11-25 18:33:58,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:33:58,822 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_mar_set [2021-11-25 18:33:58,822 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_mar_set [2021-11-25 18:33:58,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 18:33:58,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 18:34:00,539 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:34:00,547 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:34:01,131 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 18:34:18,407 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 18:34:19,244 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:34:21,761 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:34:21,762 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-25 18:34:21,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:34:21 BoogieIcfgContainer [2021-11-25 18:34:21,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:34:21,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:34:21,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:34:21,776 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:34:21,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:33:48" (1/3) ... [2021-11-25 18:34:21,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@920b111 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:34:21, skipping insertion in model container [2021-11-25 18:34:21,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:57" (2/3) ... [2021-11-25 18:34:21,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@920b111 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:34:21, skipping insertion in model container [2021-11-25 18:34:21,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:34:21" (3/3) ... [2021-11-25 18:34:21,779 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i [2021-11-25 18:34:21,784 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:34:21,784 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-25 18:34:21,849 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:34:21,855 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 18:34:21,855 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-25 18:34:21,932 INFO L276 IsEmpty]: Start isEmpty. Operand has 2555 states, 1511 states have (on average 1.2911978821972203) internal successors, (1951), 1555 states have internal predecessors, (1951), 870 states have call successors, (870), 172 states have call predecessors, (870), 171 states have return successors, (860), 844 states have call predecessors, (860), 860 states have call successors, (860) [2021-11-25 18:34:21,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-11-25 18:34:21,954 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:34:21,955 INFO L514 BasicCegarLoop]: trace histogram [22, 21, 21, 21, 21, 21, 21, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:34:21,955 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-25 18:34:21,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:34:21,960 INFO L85 PathProgramCache]: Analyzing trace with hash -277768957, now seen corresponding path program 1 times [2021-11-25 18:34:21,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:34:21,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997811829] [2021-11-25 18:34:21,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:34:21,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:34:22,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:34:23,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1725 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1725 trivial. 0 not checked. [2021-11-25 18:34:23,193 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:34:23,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997811829] [2021-11-25 18:34:23,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997811829] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:34:23,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:34:23,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:34:23,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957065117] [2021-11-25 18:34:23,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:34:23,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:34:23,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:34:23,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:34:23,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:34:23,238 INFO L87 Difference]: Start difference. First operand has 2555 states, 1511 states have (on average 1.2911978821972203) internal successors, (1951), 1555 states have internal predecessors, (1951), 870 states have call successors, (870), 172 states have call predecessors, (870), 171 states have return successors, (860), 844 states have call predecessors, (860), 860 states have call successors, (860) Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-25 18:34:28,951 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:34:32,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:34:32,905 INFO L93 Difference]: Finished difference Result 7345 states and 10866 transitions. [2021-11-25 18:34:32,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:34:32,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 235 [2021-11-25 18:34:32,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:34:32,979 INFO L225 Difference]: With dead ends: 7345 [2021-11-25 18:34:32,979 INFO L226 Difference]: Without dead ends: 4819 [2021-11-25 18:34:33,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:34:33,006 INFO L933 BasicCegarLoop]: 3873 mSDtfsCounter, 3292 mSDsluCounter, 3609 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3292 SdHoareTripleChecker+Valid, 6948 SdHoareTripleChecker+Invalid, 1127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:34:33,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3292 Valid, 6948 Invalid, 1127 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1117 Invalid, 1 Unknown, 0 Unchecked, 9.1s Time] [2021-11-25 18:34:33,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4819 states. [2021-11-25 18:34:33,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4819 to 4812. [2021-11-25 18:34:33,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4812 states, 2860 states have (on average 1.2828671328671328) internal successors, (3669), 2943 states have internal predecessors, (3669), 1611 states have call successors, (1611), 338 states have call predecessors, (1611), 337 states have return successors, (1607), 1575 states have call predecessors, (1607), 1607 states have call successors, (1607) [2021-11-25 18:34:33,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4812 states to 4812 states and 6887 transitions. [2021-11-25 18:34:33,590 INFO L78 Accepts]: Start accepts. Automaton has 4812 states and 6887 transitions. Word has length 235 [2021-11-25 18:34:33,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:34:33,592 INFO L470 AbstractCegarLoop]: Abstraction has 4812 states and 6887 transitions. [2021-11-25 18:34:33,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-25 18:34:33,593 INFO L276 IsEmpty]: Start isEmpty. Operand 4812 states and 6887 transitions. [2021-11-25 18:34:33,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2021-11-25 18:34:33,604 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:34:33,604 INFO L514 BasicCegarLoop]: trace histogram [22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:34:33,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:34:33,605 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-25 18:34:33,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:34:33,606 INFO L85 PathProgramCache]: Analyzing trace with hash 143152162, now seen corresponding path program 1 times [2021-11-25 18:34:33,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:34:33,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630297268] [2021-11-25 18:34:33,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:34:33,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:34:33,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:34:34,196 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1722 trivial. 0 not checked. [2021-11-25 18:34:34,199 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:34:34,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630297268] [2021-11-25 18:34:34,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630297268] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:34:34,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:34:34,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:34:34,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090053157] [2021-11-25 18:34:34,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:34:34,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:34:34,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:34:34,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:34:34,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:34:34,207 INFO L87 Difference]: Start difference. First operand 4812 states and 6887 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-25 18:34:39,575 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:34:43,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:34:43,631 INFO L93 Difference]: Finished difference Result 11845 states and 16922 transitions. [2021-11-25 18:34:43,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:34:43,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 239 [2021-11-25 18:34:43,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:34:43,699 INFO L225 Difference]: With dead ends: 11845 [2021-11-25 18:34:43,699 INFO L226 Difference]: Without dead ends: 7076 [2021-11-25 18:34:43,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:34:43,730 INFO L933 BasicCegarLoop]: 3907 mSDtfsCounter, 3263 mSDsluCounter, 3592 mSDsCounter, 0 mSdLazyCounter, 1132 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3263 SdHoareTripleChecker+Valid, 6968 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1132 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2021-11-25 18:34:43,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3263 Valid, 6968 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1132 Invalid, 1 Unknown, 0 Unchecked, 8.9s Time] [2021-11-25 18:34:43,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7076 states. [2021-11-25 18:34:44,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7076 to 7041. [2021-11-25 18:34:44,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7041 states, 4176 states have (on average 1.2777777777777777) internal successors, (5336), 4302 states have internal predecessors, (5336), 2355 states have call successors, (2355), 507 states have call predecessors, (2355), 506 states have return successors, (2351), 2298 states have call predecessors, (2351), 2351 states have call successors, (2351) [2021-11-25 18:34:44,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7041 states to 7041 states and 10042 transitions. [2021-11-25 18:34:44,341 INFO L78 Accepts]: Start accepts. Automaton has 7041 states and 10042 transitions. Word has length 239 [2021-11-25 18:34:44,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:34:44,343 INFO L470 AbstractCegarLoop]: Abstraction has 7041 states and 10042 transitions. [2021-11-25 18:34:44,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-25 18:34:44,346 INFO L276 IsEmpty]: Start isEmpty. Operand 7041 states and 10042 transitions. [2021-11-25 18:34:44,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-11-25 18:34:44,355 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:34:44,355 INFO L514 BasicCegarLoop]: trace histogram [22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:34:44,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:34:44,360 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-25 18:34:44,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:34:44,361 INFO L85 PathProgramCache]: Analyzing trace with hash 2120971942, now seen corresponding path program 1 times [2021-11-25 18:34:44,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:34:44,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000750390] [2021-11-25 18:34:44,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:34:44,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:34:44,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:34:44,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1722 trivial. 0 not checked. [2021-11-25 18:34:44,978 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:34:44,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000750390] [2021-11-25 18:34:44,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000750390] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:34:44,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:34:44,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:34:44,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770951785] [2021-11-25 18:34:44,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:34:44,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:34:44,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:34:44,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:34:44,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:34:44,984 INFO L87 Difference]: Start difference. First operand 7041 states and 10042 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-25 18:34:49,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:34:54,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:34:54,314 INFO L93 Difference]: Finished difference Result 18493 states and 26353 transitions. [2021-11-25 18:34:54,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:34:54,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 240 [2021-11-25 18:34:54,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:34:54,440 INFO L225 Difference]: With dead ends: 18493 [2021-11-25 18:34:54,440 INFO L226 Difference]: Without dead ends: 11495 [2021-11-25 18:34:54,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:34:54,494 INFO L933 BasicCegarLoop]: 3860 mSDtfsCounter, 3259 mSDsluCounter, 3628 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3259 SdHoareTripleChecker+Valid, 6945 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:34:54,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3259 Valid, 6945 Invalid, 1097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1095 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time] [2021-11-25 18:34:54,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11495 states. [2021-11-25 18:34:55,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11495 to 11462. [2021-11-25 18:34:55,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11462 states, 6813 states have (on average 1.2794657272860708) internal successors, (8717), 7014 states have internal predecessors, (8717), 3807 states have call successors, (3807), 839 states have call predecessors, (3807), 838 states have return successors, (3803), 3713 states have call predecessors, (3803), 3803 states have call successors, (3803) [2021-11-25 18:34:55,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11462 states to 11462 states and 16327 transitions. [2021-11-25 18:34:55,418 INFO L78 Accepts]: Start accepts. Automaton has 11462 states and 16327 transitions. Word has length 240 [2021-11-25 18:34:55,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:34:55,419 INFO L470 AbstractCegarLoop]: Abstraction has 11462 states and 16327 transitions. [2021-11-25 18:34:55,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-25 18:34:55,420 INFO L276 IsEmpty]: Start isEmpty. Operand 11462 states and 16327 transitions. [2021-11-25 18:34:55,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-11-25 18:34:55,427 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:34:55,427 INFO L514 BasicCegarLoop]: trace histogram [22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:34:55,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 18:34:55,430 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-25 18:34:55,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:34:55,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1140226960, now seen corresponding path program 1 times [2021-11-25 18:34:55,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:34:55,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046038425] [2021-11-25 18:34:55,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:34:55,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:34:55,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:34:55,899 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1722 trivial. 0 not checked. [2021-11-25 18:34:55,900 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:34:55,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046038425] [2021-11-25 18:34:55,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046038425] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:34:55,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:34:55,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:34:55,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031973308] [2021-11-25 18:34:55,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:34:55,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:34:55,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:34:55,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:34:55,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:34:55,903 INFO L87 Difference]: Start difference. First operand 11462 states and 16327 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-25 18:34:59,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:35:05,048 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:35:05,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:35:05,916 INFO L93 Difference]: Finished difference Result 29546 states and 42098 transitions. [2021-11-25 18:35:05,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:35:05,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 243 [2021-11-25 18:35:05,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:35:06,076 INFO L225 Difference]: With dead ends: 29546 [2021-11-25 18:35:06,076 INFO L226 Difference]: Without dead ends: 18127 [2021-11-25 18:35:06,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:35:06,156 INFO L933 BasicCegarLoop]: 3819 mSDtfsCounter, 2723 mSDsluCounter, 3533 mSDsCounter, 0 mSdLazyCounter, 1154 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2723 SdHoareTripleChecker+Valid, 6846 SdHoareTripleChecker+Invalid, 1163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1154 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:35:06,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2723 Valid, 6846 Invalid, 1163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1154 Invalid, 2 Unknown, 0 Unchecked, 9.3s Time] [2021-11-25 18:35:06,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18127 states. [2021-11-25 18:35:07,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18127 to 18091. [2021-11-25 18:35:07,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18091 states, 10716 states have (on average 1.2683837252706234) internal successors, (13592), 11033 states have internal predecessors, (13592), 5988 states have call successors, (5988), 1396 states have call predecessors, (5988), 1383 states have return successors, (6181), 5810 states have call predecessors, (6181), 5984 states have call successors, (6181) [2021-11-25 18:35:07,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18091 states to 18091 states and 25761 transitions. [2021-11-25 18:35:07,427 INFO L78 Accepts]: Start accepts. Automaton has 18091 states and 25761 transitions. Word has length 243 [2021-11-25 18:35:07,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:35:07,431 INFO L470 AbstractCegarLoop]: Abstraction has 18091 states and 25761 transitions. [2021-11-25 18:35:07,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-25 18:35:07,431 INFO L276 IsEmpty]: Start isEmpty. Operand 18091 states and 25761 transitions. [2021-11-25 18:35:07,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-11-25 18:35:07,437 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:35:07,438 INFO L514 BasicCegarLoop]: trace histogram [22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:35:07,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 18:35:07,438 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-25 18:35:07,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:35:07,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1596022519, now seen corresponding path program 1 times [2021-11-25 18:35:07,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:35:07,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336429225] [2021-11-25 18:35:07,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:35:07,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:35:07,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:35:07,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1722 trivial. 0 not checked. [2021-11-25 18:35:07,842 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:35:07,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336429225] [2021-11-25 18:35:07,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336429225] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:35:07,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:35:07,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:35:07,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382845035] [2021-11-25 18:35:07,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:35:07,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:35:07,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:35:07,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:35:07,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:35:07,845 INFO L87 Difference]: Start difference. First operand 18091 states and 25761 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-25 18:35:12,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:35:19,879 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:35:20,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:35:20,220 INFO L93 Difference]: Finished difference Result 52853 states and 75055 transitions. [2021-11-25 18:35:20,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:35:20,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 245 [2021-11-25 18:35:20,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:35:20,453 INFO L225 Difference]: With dead ends: 52853 [2021-11-25 18:35:20,454 INFO L226 Difference]: Without dead ends: 34805 [2021-11-25 18:35:20,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:35:20,553 INFO L933 BasicCegarLoop]: 4537 mSDtfsCounter, 3108 mSDsluCounter, 3546 mSDsCounter, 0 mSdLazyCounter, 1359 mSolverCounterSat, 29 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3108 SdHoareTripleChecker+Valid, 7565 SdHoareTripleChecker+Invalid, 1390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1359 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2021-11-25 18:35:20,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3108 Valid, 7565 Invalid, 1390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1359 Invalid, 2 Unknown, 0 Unchecked, 11.4s Time] [2021-11-25 18:35:20,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34805 states. [2021-11-25 18:35:22,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34805 to 34754. [2021-11-25 18:35:22,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34754 states, 20500 states have (on average 1.256390243902439) internal successors, (25756), 21144 states have internal predecessors, (25756), 11495 states have call successors, (11495), 2780 states have call predecessors, (11495), 2755 states have return successors, (11792), 11122 states have call predecessors, (11792), 11491 states have call successors, (11792) [2021-11-25 18:35:23,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34754 states to 34754 states and 49043 transitions. [2021-11-25 18:35:23,218 INFO L78 Accepts]: Start accepts. Automaton has 34754 states and 49043 transitions. Word has length 245 [2021-11-25 18:35:23,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:35:23,219 INFO L470 AbstractCegarLoop]: Abstraction has 34754 states and 49043 transitions. [2021-11-25 18:35:23,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-25 18:35:23,220 INFO L276 IsEmpty]: Start isEmpty. Operand 34754 states and 49043 transitions. [2021-11-25 18:35:23,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2021-11-25 18:35:23,232 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:35:23,233 INFO L514 BasicCegarLoop]: trace histogram [22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:35:23,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 18:35:23,233 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-25 18:35:23,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:35:23,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1563822599, now seen corresponding path program 1 times [2021-11-25 18:35:23,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:35:23,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647539337] [2021-11-25 18:35:23,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:35:23,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:35:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:35:24,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1722 trivial. 0 not checked. [2021-11-25 18:35:24,088 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:35:24,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647539337] [2021-11-25 18:35:24,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647539337] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:35:24,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:35:24,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:35:24,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869171297] [2021-11-25 18:35:24,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:35:24,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:35:24,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:35:24,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:35:24,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:35:24,093 INFO L87 Difference]: Start difference. First operand 34754 states and 49043 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-25 18:35:28,441 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:35:30,467 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:35:37,862 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:35:38,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:35:38,614 INFO L93 Difference]: Finished difference Result 96165 states and 135370 transitions. [2021-11-25 18:35:38,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:35:38,614 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 270 [2021-11-25 18:35:38,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:35:39,142 INFO L225 Difference]: With dead ends: 96165 [2021-11-25 18:35:39,143 INFO L226 Difference]: Without dead ends: 61454 [2021-11-25 18:35:39,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:35:39,497 INFO L933 BasicCegarLoop]: 4389 mSDtfsCounter, 2932 mSDsluCounter, 3569 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 18 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2932 SdHoareTripleChecker+Valid, 7429 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:35:39,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2932 Valid, 7429 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1325 Invalid, 2 Unknown, 0 Unchecked, 12.6s Time] [2021-11-25 18:35:39,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61454 states. [2021-11-25 18:35:42,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61454 to 61392. [2021-11-25 18:35:43,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61392 states, 36312 states have (on average 1.2496695307336418) internal successors, (45378), 37476 states have internal predecessors, (45378), 20059 states have call successors, (20059), 5082 states have call predecessors, (20059), 5017 states have return successors, (20592), 19354 states have call predecessors, (20592), 20055 states have call successors, (20592) [2021-11-25 18:35:43,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61392 states to 61392 states and 86029 transitions. [2021-11-25 18:35:43,680 INFO L78 Accepts]: Start accepts. Automaton has 61392 states and 86029 transitions. Word has length 270 [2021-11-25 18:35:43,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:35:43,682 INFO L470 AbstractCegarLoop]: Abstraction has 61392 states and 86029 transitions. [2021-11-25 18:35:43,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-25 18:35:43,683 INFO L276 IsEmpty]: Start isEmpty. Operand 61392 states and 86029 transitions. [2021-11-25 18:35:43,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-11-25 18:35:43,860 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:35:43,861 INFO L514 BasicCegarLoop]: trace histogram [23, 21, 21, 21, 21, 21, 21, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:35:43,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 18:35:43,861 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-25 18:35:43,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:35:43,862 INFO L85 PathProgramCache]: Analyzing trace with hash 846165166, now seen corresponding path program 1 times [2021-11-25 18:35:43,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:35:43,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765198354] [2021-11-25 18:35:43,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:35:43,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:35:44,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:35:44,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1773 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1766 trivial. 0 not checked. [2021-11-25 18:35:44,223 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:35:44,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765198354] [2021-11-25 18:35:44,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765198354] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:35:44,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:35:44,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:35:44,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312001588] [2021-11-25 18:35:44,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:35:44,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:35:44,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:35:44,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:35:44,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:35:44,228 INFO L87 Difference]: Start difference. First operand 61392 states and 86029 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-25 18:35:49,161 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:35:51,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:35:57,642 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:35:59,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:35:59,110 INFO L93 Difference]: Finished difference Result 172143 states and 241480 transitions. [2021-11-25 18:35:59,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:35:59,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 265 [2021-11-25 18:35:59,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:35:59,715 INFO L225 Difference]: With dead ends: 172143 [2021-11-25 18:35:59,715 INFO L226 Difference]: Without dead ends: 110794 [2021-11-25 18:36:00,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:36:00,253 INFO L933 BasicCegarLoop]: 4560 mSDtfsCounter, 3270 mSDsluCounter, 3596 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3270 SdHoareTripleChecker+Valid, 7622 SdHoareTripleChecker+Invalid, 1354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:36:00,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3270 Valid, 7622 Invalid, 1354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1339 Invalid, 2 Unknown, 0 Unchecked, 11.3s Time] [2021-11-25 18:36:00,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110794 states. [2021-11-25 18:36:04,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110794 to 110697. [2021-11-25 18:36:04,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110697 states, 65755 states have (on average 1.2494411071401414) internal successors, (82157), 67883 states have internal predecessors, (82157), 35973 states have call successors, (35973), 9082 states have call predecessors, (35973), 8965 states have return successors, (36946), 34680 states have call predecessors, (36946), 35969 states have call successors, (36946) [2021-11-25 18:36:05,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110697 states to 110697 states and 155076 transitions. [2021-11-25 18:36:05,991 INFO L78 Accepts]: Start accepts. Automaton has 110697 states and 155076 transitions. Word has length 265 [2021-11-25 18:36:05,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:36:05,993 INFO L470 AbstractCegarLoop]: Abstraction has 110697 states and 155076 transitions. [2021-11-25 18:36:05,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-25 18:36:05,994 INFO L276 IsEmpty]: Start isEmpty. Operand 110697 states and 155076 transitions. [2021-11-25 18:36:06,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2021-11-25 18:36:06,002 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:36:06,002 INFO L514 BasicCegarLoop]: trace histogram [25, 21, 21, 21, 21, 21, 21, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:36:06,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 18:36:06,003 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-25 18:36:06,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:36:06,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1211452170, now seen corresponding path program 1 times [2021-11-25 18:36:06,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:36:06,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329555219] [2021-11-25 18:36:06,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:36:06,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:36:06,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:36:06,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1894 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1894 trivial. 0 not checked. [2021-11-25 18:36:06,766 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:36:06,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329555219] [2021-11-25 18:36:06,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329555219] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:36:06,767 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:36:06,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:36:06,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692658712] [2021-11-25 18:36:06,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:36:06,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:36:06,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:36:06,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:36:06,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:36:06,770 INFO L87 Difference]: Start difference. First operand 110697 states and 155076 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-25 18:36:11,914 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:36:22,801 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:36:24,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:36:27,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:36:27,140 INFO L93 Difference]: Finished difference Result 133350 states and 186136 transitions. [2021-11-25 18:36:27,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 18:36:27,140 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 278 [2021-11-25 18:36:27,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:36:27,849 INFO L225 Difference]: With dead ends: 133350 [2021-11-25 18:36:27,849 INFO L226 Difference]: Without dead ends: 133348 [2021-11-25 18:36:27,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 18:36:27,907 INFO L933 BasicCegarLoop]: 3677 mSDtfsCounter, 2503 mSDsluCounter, 11997 mSDsCounter, 0 mSdLazyCounter, 2205 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2519 SdHoareTripleChecker+Valid, 14038 SdHoareTripleChecker+Invalid, 2210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2205 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2021-11-25 18:36:27,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2519 Valid, 14038 Invalid, 2210 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2205 Invalid, 3 Unknown, 0 Unchecked, 16.9s Time] [2021-11-25 18:36:28,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133348 states. [2021-11-25 18:36:33,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133348 to 133341. [2021-11-25 18:36:34,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133341 states, 79154 states have (on average 1.246317305505723) internal successors, (98651), 81704 states have internal predecessors, (98651), 43255 states have call successors, (43255), 11054 states have call predecessors, (43255), 10928 states have return successors, (44224), 41687 states have call predecessors, (44224), 43247 states have call successors, (44224) [2021-11-25 18:36:34,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133341 states to 133341 states and 186130 transitions. [2021-11-25 18:36:34,737 INFO L78 Accepts]: Start accepts. Automaton has 133341 states and 186130 transitions. Word has length 278 [2021-11-25 18:36:34,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:36:34,739 INFO L470 AbstractCegarLoop]: Abstraction has 133341 states and 186130 transitions. [2021-11-25 18:36:34,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-25 18:36:34,739 INFO L276 IsEmpty]: Start isEmpty. Operand 133341 states and 186130 transitions. [2021-11-25 18:36:34,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2021-11-25 18:36:34,744 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:36:34,744 INFO L514 BasicCegarLoop]: trace histogram [25, 21, 21, 21, 21, 21, 21, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:36:34,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 18:36:34,745 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-25 18:36:34,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:36:34,746 INFO L85 PathProgramCache]: Analyzing trace with hash 198616236, now seen corresponding path program 1 times [2021-11-25 18:36:34,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:36:34,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702465542] [2021-11-25 18:36:34,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:36:34,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:36:34,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:36:35,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1889 trivial. 0 not checked. [2021-11-25 18:36:35,290 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:36:35,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702465542] [2021-11-25 18:36:35,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702465542] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:36:35,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:36:35,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:36:35,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743008835] [2021-11-25 18:36:35,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:36:35,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:36:35,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:36:35,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:36:35,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:36:35,293 INFO L87 Difference]: Start difference. First operand 133341 states and 186130 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-25 18:36:40,948 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:36:53,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:36:55,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:36:55,010 INFO L93 Difference]: Finished difference Result 133354 states and 186139 transitions. [2021-11-25 18:36:55,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 18:36:55,011 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 282 [2021-11-25 18:36:55,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:36:55,633 INFO L225 Difference]: With dead ends: 133354 [2021-11-25 18:36:55,633 INFO L226 Difference]: Without dead ends: 133352 [2021-11-25 18:36:55,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 18:36:55,694 INFO L933 BasicCegarLoop]: 3680 mSDtfsCounter, 2499 mSDsluCounter, 11997 mSDsCounter, 0 mSdLazyCounter, 2206 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2514 SdHoareTripleChecker+Valid, 14041 SdHoareTripleChecker+Invalid, 2210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2206 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2021-11-25 18:36:55,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2514 Valid, 14041 Invalid, 2210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2206 Invalid, 2 Unknown, 0 Unchecked, 16.4s Time] [2021-11-25 18:36:55,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133352 states. [2021-11-25 18:37:01,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133352 to 133345. [2021-11-25 18:37:01,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133345 states, 79157 states have (on average 1.2463079702363657) internal successors, (98654), 81707 states have internal predecessors, (98654), 43255 states have call successors, (43255), 11055 states have call predecessors, (43255), 10929 states have return successors, (44224), 41687 states have call predecessors, (44224), 43247 states have call successors, (44224) [2021-11-25 18:37:02,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133345 states to 133345 states and 186133 transitions. [2021-11-25 18:37:02,653 INFO L78 Accepts]: Start accepts. Automaton has 133345 states and 186133 transitions. Word has length 282 [2021-11-25 18:37:02,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:37:02,654 INFO L470 AbstractCegarLoop]: Abstraction has 133345 states and 186133 transitions. [2021-11-25 18:37:02,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-25 18:37:02,654 INFO L276 IsEmpty]: Start isEmpty. Operand 133345 states and 186133 transitions. [2021-11-25 18:37:02,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-11-25 18:37:02,660 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:37:02,661 INFO L514 BasicCegarLoop]: trace histogram [25, 21, 21, 21, 21, 21, 21, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:37:02,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 18:37:02,661 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-25 18:37:02,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:37:02,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1784774376, now seen corresponding path program 1 times [2021-11-25 18:37:02,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:37:02,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103516822] [2021-11-25 18:37:02,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:37:02,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:37:02,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:37:03,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1897 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1893 trivial. 0 not checked. [2021-11-25 18:37:03,194 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:37:03,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103516822] [2021-11-25 18:37:03,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103516822] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:37:03,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:37:03,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:37:03,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869843608] [2021-11-25 18:37:03,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:37:03,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:37:03,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:37:03,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:37:03,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:37:03,198 INFO L87 Difference]: Start difference. First operand 133345 states and 186133 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-25 18:37:09,017 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []