./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-renesas-sh_eth.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_9731fff1-2b0f-42ad-b07d-686cf4576027/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9731fff1-2b0f-42ad-b07d-686cf4576027/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_9731fff1-2b0f-42ad-b07d-686cf4576027/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9731fff1-2b0f-42ad-b07d-686cf4576027/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9731fff1-2b0f-42ad-b07d-686cf4576027/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_9731fff1-2b0f-42ad-b07d-686cf4576027/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 39973bb7b50b53c067a6906d32b40b2185ea2f6a6ba2da336135f31e07490738 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:37:08,714 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:37:08,717 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:37:08,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:37:08,760 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:37:08,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:37:08,763 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:37:08,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:37:08,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:37:08,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:37:08,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:37:08,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:37:08,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:37:08,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:37:08,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:37:08,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:37:08,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:37:08,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:37:08,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:37:08,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:37:08,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:37:08,790 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:37:08,792 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:37:08,793 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:37:08,797 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:37:08,797 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:37:08,797 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:37:08,799 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:37:08,799 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:37:08,800 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:37:08,801 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:37:08,802 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:37:08,803 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:37:08,804 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:37:08,805 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:37:08,805 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:37:08,806 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:37:08,807 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:37:08,807 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:37:08,808 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:37:08,809 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:37:08,810 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9731fff1-2b0f-42ad-b07d-686cf4576027/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 19:37:08,835 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:37:08,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:37:08,835 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:37:08,836 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:37:08,836 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:37:08,837 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:37:08,837 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:37:08,837 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:37:08,838 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:37:08,838 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:37:08,838 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:37:08,838 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:37:08,839 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:37:08,839 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:37:08,839 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:37:08,840 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:37:08,840 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:37:08,840 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:37:08,841 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:37:08,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:37:08,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:37:08,842 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:37:08,842 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:37:08,842 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:37:08,843 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:37:08,843 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:37:08,843 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:37:08,843 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:37:08,844 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:37:08,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:37:08,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:37:08,845 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:37:08,845 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:37:08,845 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:37:08,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:37:08,846 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:37:08,846 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:37:08,846 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:37:08,846 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_9731fff1-2b0f-42ad-b07d-686cf4576027/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9731fff1-2b0f-42ad-b07d-686cf4576027/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39973bb7b50b53c067a6906d32b40b2185ea2f6a6ba2da336135f31e07490738 [2021-11-25 19:37:09,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:37:09,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:37:09,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:37:09,096 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:37:09,097 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:37:09,099 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9731fff1-2b0f-42ad-b07d-686cf4576027/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i [2021-11-25 19:37:09,208 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9731fff1-2b0f-42ad-b07d-686cf4576027/bin/utaipan-eEHZpOm5b7/data/a64875eed/0d49881a94bd45a2869db1bc585a34b0/FLAG83c495bb7 [2021-11-25 19:37:10,204 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:37:10,204 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9731fff1-2b0f-42ad-b07d-686cf4576027/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i [2021-11-25 19:37:10,294 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9731fff1-2b0f-42ad-b07d-686cf4576027/bin/utaipan-eEHZpOm5b7/data/a64875eed/0d49881a94bd45a2869db1bc585a34b0/FLAG83c495bb7 [2021-11-25 19:37:10,551 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9731fff1-2b0f-42ad-b07d-686cf4576027/bin/utaipan-eEHZpOm5b7/data/a64875eed/0d49881a94bd45a2869db1bc585a34b0 [2021-11-25 19:37:10,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:37:10,554 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:37:10,556 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:37:10,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:37:10,560 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:37:10,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:37:10" (1/1) ... [2021-11-25 19:37:10,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62eb194e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:10, skipping insertion in model container [2021-11-25 19:37:10,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:37:10" (1/1) ... [2021-11-25 19:37:10,570 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:37:10,776 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:37:16,271 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_9731fff1-2b0f-42ad-b07d-686cf4576027/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i[541045,541058] [2021-11-25 19:37:16,275 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_9731fff1-2b0f-42ad-b07d-686cf4576027/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i[541214,541227] [2021-11-25 19:37:16,275 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_9731fff1-2b0f-42ad-b07d-686cf4576027/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i[541381,541394] [2021-11-25 19:37:16,276 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_9731fff1-2b0f-42ad-b07d-686cf4576027/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i[541549,541562] [2021-11-25 19:37:16,300 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:37:16,415 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:37:16,967 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_9731fff1-2b0f-42ad-b07d-686cf4576027/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i[541045,541058] [2021-11-25 19:37:16,968 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_9731fff1-2b0f-42ad-b07d-686cf4576027/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i[541214,541227] [2021-11-25 19:37:16,969 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_9731fff1-2b0f-42ad-b07d-686cf4576027/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i[541381,541394] [2021-11-25 19:37:16,969 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_9731fff1-2b0f-42ad-b07d-686cf4576027/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i[541549,541562] [2021-11-25 19:37:16,982 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:37:17,433 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:37:17,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:17 WrapperNode [2021-11-25 19:37:17,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:37:17,435 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:37:17,435 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:37:17,435 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:37:17,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:17" (1/1) ... [2021-11-25 19:37:17,620 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:17" (1/1) ... [2021-11-25 19:37:17,975 INFO L137 Inliner]: procedures = 680, calls = 3798, calls flagged for inlining = 403, calls inlined = 378, statements flattened = 9029 [2021-11-25 19:37:17,976 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:37:17,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:37:17,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:37:17,978 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:37:17,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:17" (1/1) ... [2021-11-25 19:37:17,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:17" (1/1) ... [2021-11-25 19:37:18,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:17" (1/1) ... [2021-11-25 19:37:18,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:17" (1/1) ... [2021-11-25 19:37:18,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:17" (1/1) ... [2021-11-25 19:37:18,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:17" (1/1) ... [2021-11-25 19:37:18,472 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:17" (1/1) ... [2021-11-25 19:37:18,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:37:18,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:37:18,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:37:18,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:37:18,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:17" (1/1) ... [2021-11-25 19:37:18,561 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:37:18,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9731fff1-2b0f-42ad-b07d-686cf4576027/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:37:18,599 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9731fff1-2b0f-42ad-b07d-686cf4576027/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:37:18,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9731fff1-2b0f-42ad-b07d-686cf4576027/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:37:18,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 19:37:18,661 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 19:37:18,661 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-25 19:37:18,661 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-25 19:37:18,661 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_sset_count [2021-11-25 19:37:18,662 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_sset_count [2021-11-25 19:37:18,662 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_write [2021-11-25 19:37:18,662 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_write [2021-11-25 19:37:18,662 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-25 19:37:18,663 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-25 19:37:18,663 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_select_mii [2021-11-25 19:37:18,663 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_select_mii [2021-11-25 19:37:18,663 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_edmac [2021-11-25 19:37:18,663 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_edmac [2021-11-25 19:37:18,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 19:37:18,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 19:37:18,664 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_write [2021-11-25 19:37:18,664 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_write [2021-11-25 19:37:18,664 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_op_get_link [2021-11-25 19:37:18,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_op_get_link [2021-11-25 19:37:18,665 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_disable_cam_entry_table [2021-11-25 19:37:18,665 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_disable_cam_entry_table [2021-11-25 19:37:18,665 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-25 19:37:18,665 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-25 19:37:18,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 19:37:18,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 19:37:18,666 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_giga [2021-11-25 19:37:18,666 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_giga [2021-11-25 19:37:18,666 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2021-11-25 19:37:18,667 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2021-11-25 19:37:18,667 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-25 19:37:18,667 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-25 19:37:18,667 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-25 19:37:18,668 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-25 19:37:18,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_63 [2021-11-25 19:37:18,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_63 [2021-11-25 19:37:18,668 INFO L130 BoogieDeclarations]: Found specification of procedure bb_clr [2021-11-25 19:37:18,668 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_clr [2021-11-25 19:37:18,669 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-25 19:37:18,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-25 19:37:18,669 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_free_dma_buffer [2021-11-25 19:37:18,669 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_free_dma_buffer [2021-11-25 19:37:18,669 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_busy [2021-11-25 19:37:18,670 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_busy [2021-11-25 19:37:18,670 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_r8a777x [2021-11-25 19:37:18,670 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_r8a777x [2021-11-25 19:37:18,670 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2021-11-25 19:37:18,671 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2021-11-25 19:37:18,671 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-11-25 19:37:18,671 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-11-25 19:37:18,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 19:37:18,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 19:37:18,672 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-25 19:37:18,672 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-25 19:37:18,672 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-25 19:37:18,672 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-25 19:37:18,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 19:37:18,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 19:37:18,673 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tx_timeout [2021-11-25 19:37:18,673 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tx_timeout [2021-11-25 19:37:18,673 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2021-11-25 19:37:18,673 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2021-11-25 19:37:18,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:37:18,674 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_ring_free [2021-11-25 19:37:18,674 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_ring_free [2021-11-25 19:37:18,674 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-11-25 19:37:18,674 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-11-25 19:37:18,675 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 19:37:18,675 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 19:37:18,675 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-25 19:37:18,675 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-25 19:37:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_chip_reset [2021-11-25 19:37:18,676 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_chip_reset [2021-11-25 19:37:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 19:37:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 19:37:18,676 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 19:37:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-25 19:37:18,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-25 19:37:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 19:37:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_ringparam [2021-11-25 19:37:18,677 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_ringparam [2021-11-25 19:37:18,678 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_start_xmit [2021-11-25 19:37:18,678 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_start_xmit [2021-11-25 19:37:18,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 19:37:18,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 19:37:18,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:37:18,679 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_nway_reset [2021-11-25 19:37:18,679 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_nway_reset [2021-11-25 19:37:18,679 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-25 19:37:18,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-25 19:37:18,680 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_close [2021-11-25 19:37:18,680 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_close [2021-11-25 19:37:18,680 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_soft_swap [2021-11-25 19:37:18,680 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_soft_swap [2021-11-25 19:37:18,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 19:37:18,681 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 19:37:18,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-25 19:37:18,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-25 19:37:18,681 INFO L130 BoogieDeclarations]: Found specification of procedure sh_get_mdio [2021-11-25 19:37:18,682 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_get_mdio [2021-11-25 19:37:18,682 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_find_entry [2021-11-25 19:37:18,682 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_find_entry [2021-11-25 19:37:18,682 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_vlan_rx_add_vid [2021-11-25 19:37:18,682 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_vlan_rx_add_vid [2021-11-25 19:37:18,683 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_ring_init [2021-11-25 19:37:18,683 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_ring_init [2021-11-25 19:37:18,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-25 19:37:18,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-25 19:37:18,684 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2021-11-25 19:37:18,684 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2021-11-25 19:37:18,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 19:37:18,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-25 19:37:18,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-25 19:37:18,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-25 19:37:18,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-25 19:37:18,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-25 19:37:18,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-25 19:37:18,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-25 19:37:18,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-25 19:37:18,687 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-25 19:37:18,687 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-25 19:37:18,687 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_ringparam [2021-11-25 19:37:18,687 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_ringparam [2021-11-25 19:37:18,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:37:18,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 19:37:18,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 19:37:18,688 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 19:37:18,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 19:37:18,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 19:37:18,689 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 19:37:18,689 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 19:37:18,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 19:37:18,689 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 19:37:18,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 19:37:18,690 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_rcv_snd_enable [2021-11-25 19:37:18,690 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_rcv_snd_enable [2021-11-25 19:37:18,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sh_eth_driver_exit_18_2 [2021-11-25 19:37:18,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sh_eth_driver_exit_18_2 [2021-11-25 19:37:18,690 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_get_offset [2021-11-25 19:37:18,691 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_get_offset [2021-11-25 19:37:18,691 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2021-11-25 19:37:18,691 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2021-11-25 19:37:18,691 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-25 19:37:18,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-25 19:37:18,692 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-25 19:37:18,692 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-25 19:37:18,692 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 19:37:18,692 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 19:37:18,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-25 19:37:18,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-25 19:37:18,693 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-25 19:37:18,693 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-25 19:37:18,693 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_get_post_bit [2021-11-25 19:37:18,693 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_get_post_bit [2021-11-25 19:37:18,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:37:18,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:37:18,694 INFO L130 BoogieDeclarations]: Found specification of procedure free_mdio_bitbang [2021-11-25 19:37:18,694 INFO L138 BoogieDeclarations]: Found implementation of procedure free_mdio_bitbang [2021-11-25 19:37:18,694 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-25 19:37:18,695 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-25 19:37:18,695 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_do_ioctl [2021-11-25 19:37:18,695 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_do_ioctl [2021-11-25 19:37:18,695 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_disable_cam_entry_post [2021-11-25 19:37:18,695 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_disable_cam_entry_post [2021-11-25 19:37:18,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 19:37:18,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 19:37:18,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 19:37:18,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 19:37:18,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 19:37:18,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 19:37:18,697 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_drv_probe [2021-11-25 19:37:18,697 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_drv_probe [2021-11-25 19:37:18,697 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_read [2021-11-25 19:37:18,697 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_read [2021-11-25 19:37:18,698 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-25 19:37:18,698 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_vtag_index [2021-11-25 19:37:18,698 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_vtag_index [2021-11-25 19:37:18,698 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_edtrr_trns [2021-11-25 19:37:18,698 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_edtrr_trns [2021-11-25 19:37:18,699 INFO L130 BoogieDeclarations]: Found specification of procedure devm_ioremap_resource [2021-11-25 19:37:18,699 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_ioremap_resource [2021-11-25 19:37:18,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 19:37:18,699 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 19:37:18,699 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_get_sync [2021-11-25 19:37:18,700 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_get_sync [2021-11-25 19:37:18,700 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_duplex [2021-11-25 19:37:18,700 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_duplex [2021-11-25 19:37:18,700 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-25 19:37:18,700 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-25 19:37:18,701 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_get_post_reg_offset [2021-11-25 19:37:18,701 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_get_post_reg_offset [2021-11-25 19:37:18,701 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_chip_reset_r8a7740 [2021-11-25 19:37:18,701 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_chip_reset_r8a7740 [2021-11-25 19:37:18,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-25 19:37:18,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-25 19:37:18,702 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_chip_reset_giga [2021-11-25 19:37:18,702 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_chip_reset_giga [2021-11-25 19:37:18,702 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-25 19:37:18,702 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-25 19:37:18,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:37:18,703 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-25 19:37:18,703 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-25 19:37:18,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 19:37:18,703 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_runtime_nop [2021-11-25 19:37:18,703 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_runtime_nop [2021-11-25 19:37:18,703 INFO L130 BoogieDeclarations]: Found specification of procedure __pm_runtime_resume [2021-11-25 19:37:18,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __pm_runtime_resume [2021-11-25 19:37:18,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 19:37:18,704 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_open [2021-11-25 19:37:18,704 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_open [2021-11-25 19:37:18,704 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 19:37:18,705 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 19:37:18,705 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_multicast_list [2021-11-25 19:37:18,705 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_multicast_list [2021-11-25 19:37:18,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 19:37:18,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 19:37:18,706 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_msglevel [2021-11-25 19:37:18,706 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_msglevel [2021-11-25 19:37:18,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-25 19:37:18,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-25 19:37:18,706 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_put_sync [2021-11-25 19:37:18,707 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_put_sync [2021-11-25 19:37:18,707 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_read_entry [2021-11-25 19:37:18,707 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_read_entry [2021-11-25 19:37:18,707 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_txfree [2021-11-25 19:37:18,707 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_txfree [2021-11-25 19:37:18,707 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_settings [2021-11-25 19:37:18,708 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_settings [2021-11-25 19:37:18,708 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2021-11-25 19:37:18,708 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2021-11-25 19:37:18,708 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_rcv_snd_disable [2021-11-25 19:37:18,708 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_rcv_snd_disable [2021-11-25 19:37:18,709 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-25 19:37:18,709 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-25 19:37:18,709 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-25 19:37:18,709 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-25 19:37:18,709 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_msglevel [2021-11-25 19:37:18,709 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_msglevel [2021-11-25 19:37:18,710 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-25 19:37:18,710 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-25 19:37:18,710 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_drv_remove [2021-11-25 19:37:18,710 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_drv_remove [2021-11-25 19:37:18,710 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-25 19:37:18,711 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-25 19:37:18,711 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_read [2021-11-25 19:37:18,711 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_read [2021-11-25 19:37:18,711 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_is_rz_fast_ether [2021-11-25 19:37:18,711 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_is_rz_fast_ether [2021-11-25 19:37:18,711 INFO L130 BoogieDeclarations]: Found specification of procedure bb_set [2021-11-25 19:37:18,712 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_set [2021-11-25 19:37:18,712 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_settings [2021-11-25 19:37:18,712 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_settings [2021-11-25 19:37:18,712 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-25 19:37:18,712 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-25 19:37:18,713 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_strings [2021-11-25 19:37:18,713 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_strings [2021-11-25 19:37:18,713 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_ethtool_stats [2021-11-25 19:37:18,713 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_ethtool_stats [2021-11-25 19:37:18,713 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 19:37:18,713 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 19:37:18,714 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_dev_init [2021-11-25 19:37:18,714 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_dev_init [2021-11-25 19:37:18,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_sh_eth_private [2021-11-25 19:37:18,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_sh_eth_private [2021-11-25 19:37:18,714 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_stats [2021-11-25 19:37:18,714 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_stats [2021-11-25 19:37:18,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:37:18,715 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_vlan_rx_kill_vid [2021-11-25 19:37:18,715 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_vlan_rx_kill_vid [2021-11-25 19:37:18,715 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_sh7724 [2021-11-25 19:37:18,715 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_sh7724 [2021-11-25 19:37:18,715 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_adjust_link [2021-11-25 19:37:18,716 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_adjust_link [2021-11-25 19:37:18,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 19:37:18,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 19:37:18,716 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_purge_mcast [2021-11-25 19:37:18,716 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_purge_mcast [2021-11-25 19:37:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-25 19:37:18,717 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-25 19:37:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2021-11-25 19:37:18,717 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2021-11-25 19:37:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_sh_eth_private [2021-11-25 19:37:18,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_sh_eth_private [2021-11-25 19:37:18,718 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-25 19:37:18,718 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-25 19:37:18,718 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_is_gether [2021-11-25 19:37:18,718 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_is_gether [2021-11-25 19:37:18,718 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-25 19:37:18,718 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-25 19:37:18,719 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_sh7757 [2021-11-25 19:37:18,719 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_sh7757 [2021-11-25 19:37:18,719 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_receive_align [2021-11-25 19:37:18,719 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_receive_align [2021-11-25 19:37:18,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 19:37:18,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 19:37:18,720 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-25 19:37:18,720 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-25 19:37:18,720 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-25 19:37:18,720 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-25 19:37:18,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:37:18,721 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_write_entry [2021-11-25 19:37:18,721 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_write_entry [2021-11-25 19:37:18,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 19:37:18,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 19:37:18,721 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-25 19:37:18,721 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-25 19:37:20,218 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:37:20,225 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:37:20,708 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 19:38:30,706 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 19:38:30,823 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:38:33,448 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:38:33,448 INFO L301 CfgBuilder]: Removed 11 assume(true) statements. [2021-11-25 19:38:33,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:38:33 BoogieIcfgContainer [2021-11-25 19:38:33,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:38:33,458 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:38:33,459 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:38:33,462 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:38:33,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:37:10" (1/3) ... [2021-11-25 19:38:33,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1779cce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:38:33, skipping insertion in model container [2021-11-25 19:38:33,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:17" (2/3) ... [2021-11-25 19:38:33,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1779cce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:38:33, skipping insertion in model container [2021-11-25 19:38:33,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:38:33" (3/3) ... [2021-11-25 19:38:33,465 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-renesas-sh_eth.cil.i [2021-11-25 19:38:33,471 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:38:33,471 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-25 19:38:33,549 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:38:33,567 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 19:38:33,567 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-25 19:38:33,653 INFO L276 IsEmpty]: Start isEmpty. Operand has 2580 states, 1552 states have (on average 1.3440721649484537) internal successors, (2086), 1618 states have internal predecessors, (2086), 888 states have call successors, (888), 144 states have call predecessors, (888), 143 states have return successors, (877), 851 states have call predecessors, (877), 877 states have call successors, (877) [2021-11-25 19:38:33,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 540 [2021-11-25 19:38:33,690 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:38:33,691 INFO L514 BasicCegarLoop]: trace histogram [53, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:38:33,692 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:38:33,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:38:33,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1216894435, now seen corresponding path program 1 times [2021-11-25 19:38:33,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:38:33,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415741769] [2021-11-25 19:38:33,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:38:33,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:38:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:38:35,228 INFO L134 CoverageAnalysis]: Checked inductivity of 10712 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10712 trivial. 0 not checked. [2021-11-25 19:38:35,228 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:38:35,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415741769] [2021-11-25 19:38:35,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415741769] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:38:35,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:38:35,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:38:35,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499268317] [2021-11-25 19:38:35,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:38:35,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:38:35,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:38:35,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:38:35,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:38:35,291 INFO L87 Difference]: Start difference. First operand has 2580 states, 1552 states have (on average 1.3440721649484537) internal successors, (2086), 1618 states have internal predecessors, (2086), 888 states have call successors, (888), 144 states have call predecessors, (888), 143 states have return successors, (877), 851 states have call predecessors, (877), 877 states have call successors, (877) Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-25 19:38:37,460 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:38:41,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:38:43,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:38:43,334 INFO L93 Difference]: Finished difference Result 7284 states and 11179 transitions. [2021-11-25 19:38:43,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:38:43,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 539 [2021-11-25 19:38:43,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:38:43,455 INFO L225 Difference]: With dead ends: 7284 [2021-11-25 19:38:43,456 INFO L226 Difference]: Without dead ends: 4788 [2021-11-25 19:38:43,501 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 19:38:43,507 INFO L933 BasicCegarLoop]: 4103 mSDtfsCounter, 3418 mSDsluCounter, 3759 mSDsCounter, 0 mSdLazyCounter, 1134 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3418 SdHoareTripleChecker+Valid, 7322 SdHoareTripleChecker+Invalid, 1141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1134 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:38:43,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3418 Valid, 7322 Invalid, 1141 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 1134 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2021-11-25 19:38:43,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4788 states. [2021-11-25 19:38:44,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4788 to 4761. [2021-11-25 19:38:44,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4761 states, 2890 states have (on average 1.346712802768166) internal successors, (3892), 3005 states have internal predecessors, (3892), 1589 states have call successors, (1589), 284 states have call predecessors, (1589), 279 states have return successors, (1632), 1525 states have call predecessors, (1632), 1585 states have call successors, (1632) [2021-11-25 19:38:44,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4761 states to 4761 states and 7113 transitions. [2021-11-25 19:38:44,128 INFO L78 Accepts]: Start accepts. Automaton has 4761 states and 7113 transitions. Word has length 539 [2021-11-25 19:38:44,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:38:44,142 INFO L470 AbstractCegarLoop]: Abstraction has 4761 states and 7113 transitions. [2021-11-25 19:38:44,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-25 19:38:44,144 INFO L276 IsEmpty]: Start isEmpty. Operand 4761 states and 7113 transitions. [2021-11-25 19:38:44,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2021-11-25 19:38:44,170 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:38:44,170 INFO L514 BasicCegarLoop]: trace histogram [53, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:38:44,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:38:44,171 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:38:44,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:38:44,173 INFO L85 PathProgramCache]: Analyzing trace with hash -2141363182, now seen corresponding path program 1 times [2021-11-25 19:38:44,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:38:44,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093082345] [2021-11-25 19:38:44,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:38:44,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:38:44,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:38:45,143 INFO L134 CoverageAnalysis]: Checked inductivity of 10712 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10712 trivial. 0 not checked. [2021-11-25 19:38:45,144 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:38:45,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093082345] [2021-11-25 19:38:45,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093082345] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:38:45,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:38:45,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:38:45,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569172133] [2021-11-25 19:38:45,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:38:45,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:38:45,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:38:45,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:38:45,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:38:45,156 INFO L87 Difference]: Start difference. First operand 4761 states and 7113 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-25 19:38:47,281 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:38:52,104 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:38:53,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:38:53,102 INFO L93 Difference]: Finished difference Result 13812 states and 20617 transitions. [2021-11-25 19:38:53,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:38:53,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 541 [2021-11-25 19:38:53,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:38:53,199 INFO L225 Difference]: With dead ends: 13812 [2021-11-25 19:38:53,199 INFO L226 Difference]: Without dead ends: 9156 [2021-11-25 19:38:53,240 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 19:38:53,241 INFO L933 BasicCegarLoop]: 3950 mSDtfsCounter, 3344 mSDsluCounter, 3733 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3346 SdHoareTripleChecker+Valid, 7133 SdHoareTripleChecker+Invalid, 1146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:38:53,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3346 Valid, 7133 Invalid, 1146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1137 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2021-11-25 19:38:53,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9156 states. [2021-11-25 19:38:53,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9156 to 9152. [2021-11-25 19:38:53,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9152 states, 5594 states have (on average 1.3489452985341437) internal successors, (7546), 5809 states have internal predecessors, (7546), 3003 states have call successors, (3003), 561 states have call predecessors, (3003), 552 states have return successors, (3096), 2885 states have call predecessors, (3096), 2999 states have call successors, (3096) [2021-11-25 19:38:53,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9152 states to 9152 states and 13645 transitions. [2021-11-25 19:38:53,861 INFO L78 Accepts]: Start accepts. Automaton has 9152 states and 13645 transitions. Word has length 541 [2021-11-25 19:38:53,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:38:53,863 INFO L470 AbstractCegarLoop]: Abstraction has 9152 states and 13645 transitions. [2021-11-25 19:38:53,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-25 19:38:53,864 INFO L276 IsEmpty]: Start isEmpty. Operand 9152 states and 13645 transitions. [2021-11-25 19:38:53,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2021-11-25 19:38:53,883 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:38:53,883 INFO L514 BasicCegarLoop]: trace histogram [53, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:38:53,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 19:38:53,884 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:38:53,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:38:53,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1750931807, now seen corresponding path program 1 times [2021-11-25 19:38:53,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:38:53,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199754760] [2021-11-25 19:38:53,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:38:53,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:38:54,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:38:54,542 INFO L134 CoverageAnalysis]: Checked inductivity of 10712 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10712 trivial. 0 not checked. [2021-11-25 19:38:54,542 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:38:54,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199754760] [2021-11-25 19:38:54,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199754760] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:38:54,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:38:54,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:38:54,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985861456] [2021-11-25 19:38:54,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:38:54,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:38:54,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:38:54,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:38:54,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:38:54,548 INFO L87 Difference]: Start difference. First operand 9152 states and 13645 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-25 19:38:56,651 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:38:59,945 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:39:02,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:39:02,690 INFO L93 Difference]: Finished difference Result 26730 states and 40051 transitions. [2021-11-25 19:39:02,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:39:02,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 549 [2021-11-25 19:39:02,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:39:02,885 INFO L225 Difference]: With dead ends: 26730 [2021-11-25 19:39:02,885 INFO L226 Difference]: Without dead ends: 17683 [2021-11-25 19:39:02,965 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 19:39:02,967 INFO L933 BasicCegarLoop]: 3978 mSDtfsCounter, 3290 mSDsluCounter, 3709 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3290 SdHoareTripleChecker+Valid, 7169 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:39:02,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3290 Valid, 7169 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1171 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2021-11-25 19:39:02,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17683 states. [2021-11-25 19:39:04,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17683 to 17658. [2021-11-25 19:39:04,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17658 states, 10813 states have (on average 1.3469897345787478) internal successors, (14565), 11234 states have internal predecessors, (14565), 5742 states have call successors, (5742), 1117 states have call predecessors, (5742), 1100 states have return successors, (6203), 5511 states have call predecessors, (6203), 5738 states have call successors, (6203) [2021-11-25 19:39:04,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17658 states to 17658 states and 26510 transitions. [2021-11-25 19:39:04,244 INFO L78 Accepts]: Start accepts. Automaton has 17658 states and 26510 transitions. Word has length 549 [2021-11-25 19:39:04,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:39:04,247 INFO L470 AbstractCegarLoop]: Abstraction has 17658 states and 26510 transitions. [2021-11-25 19:39:04,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-25 19:39:04,248 INFO L276 IsEmpty]: Start isEmpty. Operand 17658 states and 26510 transitions. [2021-11-25 19:39:04,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2021-11-25 19:39:04,258 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:39:04,259 INFO L514 BasicCegarLoop]: trace histogram [53, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:39:04,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 19:39:04,260 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:39:04,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:39:04,261 INFO L85 PathProgramCache]: Analyzing trace with hash -604550985, now seen corresponding path program 1 times [2021-11-25 19:39:04,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:39:04,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726259213] [2021-11-25 19:39:04,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:39:04,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:39:04,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:39:04,912 INFO L134 CoverageAnalysis]: Checked inductivity of 10712 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10712 trivial. 0 not checked. [2021-11-25 19:39:04,912 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:39:04,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726259213] [2021-11-25 19:39:04,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726259213] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:39:04,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:39:04,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:39:04,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826183846] [2021-11-25 19:39:04,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:39:04,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:39:04,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:39:04,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:39:04,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:39:04,916 INFO L87 Difference]: Start difference. First operand 17658 states and 26510 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-25 19:39:07,023 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:39:10,234 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:39:13,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:39:13,013 INFO L93 Difference]: Finished difference Result 51902 states and 78507 transitions. [2021-11-25 19:39:13,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:39:13,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 552 [2021-11-25 19:39:13,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:39:13,351 INFO L225 Difference]: With dead ends: 51902 [2021-11-25 19:39:13,351 INFO L226 Difference]: Without dead ends: 34349 [2021-11-25 19:39:13,481 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 19:39:13,488 INFO L933 BasicCegarLoop]: 4055 mSDtfsCounter, 3287 mSDsluCounter, 3709 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3287 SdHoareTripleChecker+Valid, 7246 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:39:13,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3287 Valid, 7246 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1209 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2021-11-25 19:39:13,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34349 states. [2021-11-25 19:39:16,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34349 to 34324. [2021-11-25 19:39:16,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34324 states, 21030 states have (on average 1.3440798858773182) internal successors, (28266), 21863 states have internal predecessors, (28266), 11095 states have call successors, (11095), 2229 states have call predecessors, (11095), 2196 states have return successors, (12720), 10637 states have call predecessors, (12720), 11091 states have call successors, (12720) [2021-11-25 19:39:16,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34324 states to 34324 states and 52081 transitions. [2021-11-25 19:39:16,344 INFO L78 Accepts]: Start accepts. Automaton has 34324 states and 52081 transitions. Word has length 552 [2021-11-25 19:39:16,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:39:16,345 INFO L470 AbstractCegarLoop]: Abstraction has 34324 states and 52081 transitions. [2021-11-25 19:39:16,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-25 19:39:16,346 INFO L276 IsEmpty]: Start isEmpty. Operand 34324 states and 52081 transitions. [2021-11-25 19:39:16,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2021-11-25 19:39:16,354 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:39:16,354 INFO L514 BasicCegarLoop]: trace histogram [53, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:39:16,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 19:39:16,355 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:39:16,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:39:16,355 INFO L85 PathProgramCache]: Analyzing trace with hash 602459301, now seen corresponding path program 1 times [2021-11-25 19:39:16,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:39:16,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670962472] [2021-11-25 19:39:16,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:39:16,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:39:16,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:39:17,182 INFO L134 CoverageAnalysis]: Checked inductivity of 10712 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10712 trivial. 0 not checked. [2021-11-25 19:39:17,182 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:39:17,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670962472] [2021-11-25 19:39:17,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670962472] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:39:17,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:39:17,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:39:17,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668798753] [2021-11-25 19:39:17,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:39:17,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:39:17,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:39:17,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:39:17,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:39:17,185 INFO L87 Difference]: Start difference. First operand 34324 states and 52081 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-25 19:39:19,292 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:39:22,626 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:39:26,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:39:26,523 INFO L93 Difference]: Finished difference Result 101210 states and 154785 transitions. [2021-11-25 19:39:26,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:39:26,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 550 [2021-11-25 19:39:26,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:39:27,201 INFO L225 Difference]: With dead ends: 101210 [2021-11-25 19:39:27,201 INFO L226 Difference]: Without dead ends: 66991 [2021-11-25 19:39:27,430 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 19:39:27,431 INFO L933 BasicCegarLoop]: 4131 mSDtfsCounter, 3289 mSDsluCounter, 3709 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3289 SdHoareTripleChecker+Valid, 7322 SdHoareTripleChecker+Invalid, 1256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:39:27,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3289 Valid, 7322 Invalid, 1256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1247 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2021-11-25 19:39:27,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66991 states. [2021-11-25 19:39:32,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66991 to 66966. [2021-11-25 19:39:32,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66966 states, 41023 states have (on average 1.340589425444263) internal successors, (54995), 42680 states have internal predecessors, (54995), 21552 states have call successors, (21552), 4453 states have call predecessors, (21552), 4388 states have return successors, (26201), 20639 states have call predecessors, (26201), 21548 states have call successors, (26201) [2021-11-25 19:39:32,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66966 states to 66966 states and 102748 transitions. [2021-11-25 19:39:32,933 INFO L78 Accepts]: Start accepts. Automaton has 66966 states and 102748 transitions. Word has length 550 [2021-11-25 19:39:32,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:39:32,954 INFO L470 AbstractCegarLoop]: Abstraction has 66966 states and 102748 transitions. [2021-11-25 19:39:32,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-25 19:39:32,954 INFO L276 IsEmpty]: Start isEmpty. Operand 66966 states and 102748 transitions. [2021-11-25 19:39:32,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2021-11-25 19:39:32,981 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:39:32,982 INFO L514 BasicCegarLoop]: trace histogram [53, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:39:32,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 19:39:32,982 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:39:32,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:39:32,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1792859164, now seen corresponding path program 1 times [2021-11-25 19:39:32,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:39:32,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257057314] [2021-11-25 19:39:32,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:39:32,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:39:33,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:39:33,740 INFO L134 CoverageAnalysis]: Checked inductivity of 10712 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10712 trivial. 0 not checked. [2021-11-25 19:39:33,741 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:39:33,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257057314] [2021-11-25 19:39:33,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257057314] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:39:33,742 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:39:33,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:39:33,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481580294] [2021-11-25 19:39:33,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:39:33,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:39:33,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:39:33,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:39:33,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:39:33,745 INFO L87 Difference]: Start difference. First operand 66966 states and 102748 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-25 19:39:35,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:39:38,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:39:45,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:39:45,103 INFO L93 Difference]: Finished difference Result 197758 states and 305759 transitions. [2021-11-25 19:39:45,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:39:45,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 551 [2021-11-25 19:39:45,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:39:45,960 INFO L225 Difference]: With dead ends: 197758 [2021-11-25 19:39:45,961 INFO L226 Difference]: Without dead ends: 130897 [2021-11-25 19:39:46,307 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 19:39:46,308 INFO L933 BasicCegarLoop]: 4208 mSDtfsCounter, 3288 mSDsluCounter, 3709 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3288 SdHoareTripleChecker+Valid, 7399 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:39:46,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3288 Valid, 7399 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1279 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2021-11-25 19:39:46,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130897 states. [2021-11-25 19:39:53,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130897 to 130872. [2021-11-25 19:39:53,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130872 states, 80128 states have (on average 1.3367112619808306) internal successors, (107108), 83433 states have internal predecessors, (107108), 41969 states have call successors, (41969), 8901 states have call predecessors, (41969), 8772 states have return successors, (53898), 40145 states have call predecessors, (53898), 41965 states have call successors, (53898) [2021-11-25 19:39:55,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130872 states to 130872 states and 202975 transitions. [2021-11-25 19:39:55,038 INFO L78 Accepts]: Start accepts. Automaton has 130872 states and 202975 transitions. Word has length 551 [2021-11-25 19:39:55,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:39:55,040 INFO L470 AbstractCegarLoop]: Abstraction has 130872 states and 202975 transitions. [2021-11-25 19:39:55,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-25 19:39:55,041 INFO L276 IsEmpty]: Start isEmpty. Operand 130872 states and 202975 transitions. [2021-11-25 19:39:55,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2021-11-25 19:39:55,049 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:39:55,049 INFO L514 BasicCegarLoop]: trace histogram [53, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:39:55,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 19:39:55,050 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:39:55,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:39:55,051 INFO L85 PathProgramCache]: Analyzing trace with hash 569402028, now seen corresponding path program 1 times [2021-11-25 19:39:55,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:39:55,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206906810] [2021-11-25 19:39:55,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:39:55,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:39:55,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:39:55,656 INFO L134 CoverageAnalysis]: Checked inductivity of 10712 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10712 trivial. 0 not checked. [2021-11-25 19:39:55,656 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:39:55,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206906810] [2021-11-25 19:39:55,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206906810] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:39:55,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:39:55,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:39:55,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237751600] [2021-11-25 19:39:55,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:39:55,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:39:55,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:39:55,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:39:55,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:39:55,659 INFO L87 Difference]: Start difference. First operand 130872 states and 202975 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-25 19:39:57,765 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:40:01,458 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 []