./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785bca7d-466e-496a-99b0-584c46ba1b64/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785bca7d-466e-496a-99b0-584c46ba1b64/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785bca7d-466e-496a-99b0-584c46ba1b64/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785bca7d-466e-496a-99b0-584c46ba1b64/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785bca7d-466e-496a-99b0-584c46ba1b64/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785bca7d-466e-496a-99b0-584c46ba1b64/bin/utaipan-g80aRyZoba --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 fdbc5180119fad988a6a3a24d2f5ed804cbc2cd6d0e7bbb402b6d4dd37802e45 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 00:23:37,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:23:37,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:23:37,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:23:37,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:23:37,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:23:37,953 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:23:37,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:23:37,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:23:37,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:23:37,958 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:23:37,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:23:37,967 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:23:37,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:23:37,975 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:23:37,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:23:37,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:23:37,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:23:37,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:23:37,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:23:37,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:23:37,985 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:23:37,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:23:37,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:23:37,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:23:37,991 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:23:37,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:23:37,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:23:37,992 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:23:37,993 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:23:37,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:23:37,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:23:37,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:23:37,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:23:37,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:23:37,997 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:23:37,998 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:23:37,998 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:23:37,998 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:23:37,999 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:23:38,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:23:38,003 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785bca7d-466e-496a-99b0-584c46ba1b64/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 00:23:38,036 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:23:38,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:23:38,042 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:23:38,042 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:23:38,043 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:23:38,044 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:23:38,044 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:23:38,044 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:23:38,044 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:23:38,044 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:23:38,046 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:23:38,046 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:23:38,046 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:23:38,046 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:23:38,047 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:23:38,047 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:23:38,047 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:23:38,047 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:23:38,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:23:38,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:23:38,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:23:38,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:23:38,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:23:38,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:23:38,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:23:38,050 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:23:38,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:23:38,050 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:23:38,051 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:23:38,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:23:38,051 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:23:38,052 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:23:38,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:23:38,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:23:38,052 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:23:38,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:23:38,053 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:23:38,053 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:23:38,053 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785bca7d-466e-496a-99b0-584c46ba1b64/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785bca7d-466e-496a-99b0-584c46ba1b64/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdbc5180119fad988a6a3a24d2f5ed804cbc2cd6d0e7bbb402b6d4dd37802e45 [2022-11-22 00:23:38,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:23:38,386 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:23:38,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:23:38,389 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:23:38,389 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:23:38,390 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785bca7d-466e-496a-99b0-584c46ba1b64/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2022-11-22 00:23:41,424 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:23:42,186 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:23:42,187 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785bca7d-466e-496a-99b0-584c46ba1b64/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2022-11-22 00:23:42,243 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785bca7d-466e-496a-99b0-584c46ba1b64/bin/utaipan-g80aRyZoba/data/1ca0a9d07/72f26e86136044708dcdb66d49c828ea/FLAG292ca8b64 [2022-11-22 00:23:42,259 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785bca7d-466e-496a-99b0-584c46ba1b64/bin/utaipan-g80aRyZoba/data/1ca0a9d07/72f26e86136044708dcdb66d49c828ea [2022-11-22 00:23:42,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:23:42,262 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:23:42,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:23:42,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:23:42,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:23:42,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:23:42" (1/1) ... [2022-11-22 00:23:42,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41ded969 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:23:42, skipping insertion in model container [2022-11-22 00:23:42,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:23:42" (1/1) ... [2022-11-22 00:23:42,277 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:23:42,476 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:23:45,868 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785bca7d-466e-496a-99b0-584c46ba1b64/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394320,394333] [2022-11-22 00:23:45,873 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785bca7d-466e-496a-99b0-584c46ba1b64/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394489,394502] [2022-11-22 00:23:45,874 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785bca7d-466e-496a-99b0-584c46ba1b64/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394656,394669] [2022-11-22 00:23:45,874 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785bca7d-466e-496a-99b0-584c46ba1b64/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394824,394837] [2022-11-22 00:23:45,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:23:45,945 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:23:46,828 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785bca7d-466e-496a-99b0-584c46ba1b64/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394320,394333] [2022-11-22 00:23:46,829 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785bca7d-466e-496a-99b0-584c46ba1b64/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394489,394502] [2022-11-22 00:23:46,830 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785bca7d-466e-496a-99b0-584c46ba1b64/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394656,394669] [2022-11-22 00:23:46,830 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785bca7d-466e-496a-99b0-584c46ba1b64/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394824,394837] [2022-11-22 00:23:46,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:23:47,059 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:23:47,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:23:47 WrapperNode [2022-11-22 00:23:47,060 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:23:47,061 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:23:47,061 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:23:47,061 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:23:47,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:23:47" (1/1) ... [2022-11-22 00:23:47,164 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:23:47" (1/1) ... [2022-11-22 00:23:47,356 INFO L138 Inliner]: procedures = 495, calls = 2611, calls flagged for inlining = 242, calls inlined = 227, statements flattened = 5074 [2022-11-22 00:23:47,357 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:23:47,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:23:47,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:23:47,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:23:47,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:23:47" (1/1) ... [2022-11-22 00:23:47,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:23:47" (1/1) ... [2022-11-22 00:23:47,421 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:23:47" (1/1) ... [2022-11-22 00:23:47,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:23:47" (1/1) ... [2022-11-22 00:23:47,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:23:47" (1/1) ... [2022-11-22 00:23:47,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:23:47" (1/1) ... [2022-11-22 00:23:47,606 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:23:47" (1/1) ... [2022-11-22 00:23:47,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:23:47" (1/1) ... [2022-11-22 00:23:47,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:23:47,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:23:47,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:23:47,673 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:23:47,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:23:47" (1/1) ... [2022-11-22 00:23:47,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:23:47,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785bca7d-466e-496a-99b0-584c46ba1b64/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:23:47,705 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785bca7d-466e-496a-99b0-584c46ba1b64/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:23:47,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785bca7d-466e-496a-99b0-584c46ba1b64/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:23:47,752 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2022-11-22 00:23:47,753 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2022-11-22 00:23:47,753 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-22 00:23:47,753 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-22 00:23:47,753 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_crc_length [2022-11-22 00:23:47,753 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_crc_length [2022-11-22 00:23:47,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 00:23:47,753 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 00:23:47,753 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dec_reset [2022-11-22 00:23:47,754 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dec_reset [2022-11-22 00:23:47,754 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_get_link_status [2022-11-22 00:23:47,754 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_get_link_status [2022-11-22 00:23:47,754 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-22 00:23:47,754 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-22 00:23:47,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 00:23:47,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 00:23:47,754 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_default [2022-11-22 00:23:47,755 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_default [2022-11-22 00:23:47,755 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkinput [2022-11-22 00:23:47,756 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkinput [2022-11-22 00:23:47,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 00:23:47,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 00:23:47,757 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_status [2022-11-22 00:23:47,757 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_status [2022-11-22 00:23:47,757 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_100ft [2022-11-22 00:23:47,757 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_100ft [2022-11-22 00:23:47,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_64 [2022-11-22 00:23:47,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_64 [2022-11-22 00:23:47,758 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dummy_set_1 [2022-11-22 00:23:47,758 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dummy_set_1 [2022-11-22 00:23:47,758 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-22 00:23:47,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-22 00:23:47,758 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_close [2022-11-22 00:23:47,759 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_close [2022-11-22 00:23:47,759 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_watchdog [2022-11-22 00:23:47,759 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_watchdog [2022-11-22 00:23:47,759 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2022-11-22 00:23:47,759 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2022-11-22 00:23:47,759 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_sc [2022-11-22 00:23:47,759 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_sc [2022-11-22 00:23:47,759 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_netif [2022-11-22 00:23:47,760 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_netif [2022-11-22 00:23:47,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 00:23:47,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 00:23:47,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 00:23:47,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 00:23:47,761 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_trace [2022-11-22 00:23:47,761 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_trace [2022-11-22 00:23:47,761 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_get_link_status [2022-11-22 00:23:47,761 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_get_link_status [2022-11-22 00:23:47,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:23:47,762 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-22 00:23:47,762 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-22 00:23:47,762 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 00:23:47,762 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 00:23:47,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 00:23:47,762 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-22 00:23:47,763 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-22 00:23:47,763 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_default [2022-11-22 00:23:47,763 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_default [2022-11-22 00:23:47,763 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_clock [2022-11-22 00:23:47,763 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_clock [2022-11-22 00:23:47,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 00:23:47,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 00:23:47,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 00:23:47,764 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_off [2022-11-22 00:23:47,764 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_off [2022-11-22 00:23:47,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 00:23:47,765 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2022-11-22 00:23:47,765 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2022-11-22 00:23:47,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-22 00:23:47,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-22 00:23:47,766 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_default [2022-11-22 00:23:47,767 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_default [2022-11-22 00:23:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 00:23:47,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 00:23:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 00:23:47,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 00:23:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_softreset [2022-11-22 00:23:47,767 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_softreset [2022-11-22 00:23:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110_bit [2022-11-22 00:23:47,768 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110_bit [2022-11-22 00:23:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-22 00:23:47,768 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-22 00:23:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-22 00:23:47,768 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-22 00:23:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_crc_length [2022-11-22 00:23:47,769 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_crc_length [2022-11-22 00:23:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_writereg [2022-11-22 00:23:47,770 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_writereg [2022-11-22 00:23:47,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-22 00:23:47,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-22 00:23:47,770 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2022-11-22 00:23:47,770 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2022-11-22 00:23:47,770 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2022-11-22 00:23:47,771 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2022-11-22 00:23:47,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 00:23:47,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-22 00:23:47,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-22 00:23:47,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-22 00:23:47,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-22 00:23:47,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:23:47,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 00:23:47,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 00:23:47,773 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 00:23:47,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 00:23:47,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lmc_lock_of_lmc___softc [2022-11-22 00:23:47,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lmc_lock_of_lmc___softc [2022-11-22 00:23:47,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 00:23:47,776 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_readreg [2022-11-22 00:23:47,777 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_readreg [2022-11-22 00:23:47,777 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 00:23:47,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 00:23:47,778 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-22 00:23:47,782 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-22 00:23:47,783 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 00:23:47,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 00:23:47,783 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_init [2022-11-22 00:23:47,783 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_init [2022-11-22 00:23:47,783 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-22 00:23:47,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-22 00:23:47,783 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_open [2022-11-22 00:23:47,784 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_open [2022-11-22 00:23:47,784 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-22 00:23:47,784 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-22 00:23:47,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-22 00:23:47,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-22 00:23:47,784 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_watchdog [2022-11-22 00:23:47,784 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_watchdog [2022-11-22 00:23:47,784 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_status [2022-11-22 00:23:47,784 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_status [2022-11-22 00:23:47,785 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_set_protocol [2022-11-22 00:23:47,785 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_set_protocol [2022-11-22 00:23:47,785 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_clock [2022-11-22 00:23:47,785 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_clock [2022-11-22 00:23:47,785 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-22 00:23:47,785 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-22 00:23:47,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:23:47,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:23:47,785 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_open [2022-11-22 00:23:47,786 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_open [2022-11-22 00:23:47,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 00:23:47,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 00:23:47,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 00:23:47,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 00:23:47,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_lmc_driver_exit_17_2 [2022-11-22 00:23:47,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_lmc_driver_exit_17_2 [2022-11-22 00:23:47,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 00:23:47,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 00:23:47,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-22 00:23:47,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-22 00:23:47,787 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_get_link_status [2022-11-22 00:23:47,787 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_get_link_status [2022-11-22 00:23:47,787 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_circuit_type [2022-11-22 00:23:47,787 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_circuit_type [2022-11-22 00:23:47,787 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_status [2022-11-22 00:23:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_status [2022-11-22 00:23:47,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 00:23:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 00:23:47,788 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_get_link_status [2022-11-22 00:23:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_get_link_status [2022-11-22 00:23:47,788 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_init [2022-11-22 00:23:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_init [2022-11-22 00:23:47,788 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-22 00:23:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-22 00:23:47,788 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_scram [2022-11-22 00:23:47,789 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_scram [2022-11-22 00:23:47,789 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_init [2022-11-22 00:23:47,789 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_init [2022-11-22 00:23:47,789 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkoutput [2022-11-22 00:23:47,789 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkoutput [2022-11-22 00:23:47,789 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-22 00:23:47,789 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-22 00:23:47,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:23:47,789 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2022-11-22 00:23:47,790 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2022-11-22 00:23:47,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lmc_lock_of_lmc___softc [2022-11-22 00:23:47,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lmc_lock_of_lmc___softc [2022-11-22 00:23:47,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 00:23:47,791 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-22 00:23:47,792 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-22 00:23:47,792 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110 [2022-11-22 00:23:47,792 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110 [2022-11-22 00:23:47,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 00:23:47,792 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-22 00:23:47,792 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-22 00:23:47,792 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_speed [2022-11-22 00:23:47,792 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_speed [2022-11-22 00:23:47,792 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_crc_length [2022-11-22 00:23:47,793 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_crc_length [2022-11-22 00:23:47,793 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-22 00:23:47,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-22 00:23:47,793 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_type [2022-11-22 00:23:47,793 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_type [2022-11-22 00:23:47,793 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_remove_one [2022-11-22 00:23:47,793 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_remove_one [2022-11-22 00:23:47,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 00:23:47,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 00:23:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-22 00:23:47,794 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-22 00:23:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_write [2022-11-22 00:23:47,794 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_write [2022-11-22 00:23:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_close [2022-11-22 00:23:47,794 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_close [2022-11-22 00:23:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-22 00:23:47,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-22 00:23:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-22 00:23:47,795 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-22 00:23:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 00:23:47,795 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 00:23:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_link_status [2022-11-22 00:23:47,795 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_link_status [2022-11-22 00:23:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_watchdog [2022-11-22 00:23:47,795 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_watchdog [2022-11-22 00:23:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 00:23:47,795 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 00:23:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_watchdog [2022-11-22 00:23:47,796 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_watchdog [2022-11-22 00:23:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:23:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-22 00:23:47,796 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-22 00:23:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 00:23:47,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 00:23:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_link_status [2022-11-22 00:23:47,796 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_link_status [2022-11-22 00:23:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_init [2022-11-22 00:23:47,797 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_init [2022-11-22 00:23:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_attach [2022-11-22 00:23:47,797 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_attach [2022-11-22 00:23:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_default [2022-11-22 00:23:47,797 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_default [2022-11-22 00:23:47,798 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-22 00:23:47,801 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-22 00:23:47,801 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_crc_length [2022-11-22 00:23:47,802 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_crc_length [2022-11-22 00:23:47,802 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_clock [2022-11-22 00:23:47,802 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_clock [2022-11-22 00:23:47,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 00:23:47,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 00:23:47,802 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dummy_set2_1 [2022-11-22 00:23:47,802 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dummy_set2_1 [2022-11-22 00:23:47,804 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_on [2022-11-22 00:23:47,804 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_on [2022-11-22 00:23:47,804 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-22 00:23:47,804 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-22 00:23:47,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:23:47,804 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-22 00:23:47,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-22 00:23:47,804 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-11-22 00:23:47,804 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-11-22 00:23:47,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 00:23:47,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 00:23:47,805 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2022-11-22 00:23:47,805 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2022-11-22 00:23:48,889 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:23:48,893 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:23:49,441 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 00:23:51,255 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint switch_break: call #t~mem1255#1.base, #t~mem1255#1.offset := read~$Pointer$(~sc#1.base, 141 + ~sc#1.offset, 8); [2022-11-22 00:23:51,255 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L12881: SUMMARY for call lmc_trace(#t~mem1255#1.base, #t~mem1255#1.offset, 129, 0); srcloc: null [2022-11-22 00:23:51,255 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L12881-1: havoc #t~mem1255#1.base, #t~mem1255#1.offset; [2022-11-22 00:23:57,671 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 00:23:57,926 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:23:59,555 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:23:59,555 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 00:23:59,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:23:59 BoogieIcfgContainer [2022-11-22 00:23:59,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:23:59,566 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:23:59,566 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:23:59,570 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:23:59,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:23:42" (1/3) ... [2022-11-22 00:23:59,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13214336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:23:59, skipping insertion in model container [2022-11-22 00:23:59,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:23:47" (2/3) ... [2022-11-22 00:23:59,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13214336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:23:59, skipping insertion in model container [2022-11-22 00:23:59,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:23:59" (3/3) ... [2022-11-22 00:23:59,575 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2022-11-22 00:23:59,595 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:23:59,595 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-22 00:23:59,685 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:23:59,693 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@39ced8a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:23:59,694 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-22 00:23:59,707 INFO L276 IsEmpty]: Start isEmpty. Operand has 2009 states, 1116 states have (on average 1.314516129032258) internal successors, (1467), 1186 states have internal predecessors, (1467), 772 states have call successors, (772), 119 states have call predecessors, (772), 118 states have return successors, (765), 722 states have call predecessors, (765), 765 states have call successors, (765) [2022-11-22 00:23:59,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-22 00:23:59,743 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:23:59,744 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:23:59,744 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 00:23:59,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:23:59,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1511619702, now seen corresponding path program 1 times [2022-11-22 00:23:59,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:23:59,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975233144] [2022-11-22 00:23:59,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:23:59,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:24:00,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:24:00,708 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 873 trivial. 0 not checked. [2022-11-22 00:24:00,709 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:24:00,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975233144] [2022-11-22 00:24:00,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975233144] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:24:00,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:24:00,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:24:00,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997755507] [2022-11-22 00:24:00,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:24:00,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:24:00,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:24:00,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:24:00,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:24:00,768 INFO L87 Difference]: Start difference. First operand has 2009 states, 1116 states have (on average 1.314516129032258) internal successors, (1467), 1186 states have internal predecessors, (1467), 772 states have call successors, (772), 119 states have call predecessors, (772), 118 states have return successors, (765), 722 states have call predecessors, (765), 765 states have call successors, (765) Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-22 00:24:03,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:24:03,796 INFO L93 Difference]: Finished difference Result 5883 states and 8922 transitions. [2022-11-22 00:24:03,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:24:03,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 174 [2022-11-22 00:24:03,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:24:03,846 INFO L225 Difference]: With dead ends: 5883 [2022-11-22 00:24:03,846 INFO L226 Difference]: Without dead ends: 3894 [2022-11-22 00:24:03,865 INFO L412 NwaCegarLoop]: 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 [2022-11-22 00:24:03,868 INFO L413 NwaCegarLoop]: 3364 mSDtfsCounter, 2863 mSDsluCounter, 2607 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2863 SdHoareTripleChecker+Valid, 5971 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-22 00:24:03,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2863 Valid, 5971 Invalid, 735 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-22 00:24:03,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3894 states. [2022-11-22 00:24:04,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3894 to 3890. [2022-11-22 00:24:04,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3890 states, 2175 states have (on average 1.3103448275862069) internal successors, (2850), 2314 states have internal predecessors, (2850), 1480 states have call successors, (1480), 233 states have call predecessors, (1480), 232 states have return successors, (1476), 1390 states have call predecessors, (1476), 1476 states have call successors, (1476) [2022-11-22 00:24:04,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3890 states to 3890 states and 5806 transitions. [2022-11-22 00:24:04,355 INFO L78 Accepts]: Start accepts. Automaton has 3890 states and 5806 transitions. Word has length 174 [2022-11-22 00:24:04,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:24:04,356 INFO L495 AbstractCegarLoop]: Abstraction has 3890 states and 5806 transitions. [2022-11-22 00:24:04,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-22 00:24:04,356 INFO L276 IsEmpty]: Start isEmpty. Operand 3890 states and 5806 transitions. [2022-11-22 00:24:04,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-11-22 00:24:04,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:24:04,366 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:24:04,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:24:04,367 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 00:24:04,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:24:04,367 INFO L85 PathProgramCache]: Analyzing trace with hash -749734694, now seen corresponding path program 1 times [2022-11-22 00:24:04,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:24:04,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508263248] [2022-11-22 00:24:04,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:24:04,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:24:04,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:24:04,820 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-22 00:24:04,820 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:24:04,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508263248] [2022-11-22 00:24:04,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508263248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:24:04,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:24:04,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:24:04,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44322118] [2022-11-22 00:24:04,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:24:04,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:24:04,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:24:04,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:24:04,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:24:04,824 INFO L87 Difference]: Start difference. First operand 3890 states and 5806 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-22 00:24:08,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:24:08,328 INFO L93 Difference]: Finished difference Result 11350 states and 16960 transitions. [2022-11-22 00:24:08,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:24:08,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 181 [2022-11-22 00:24:08,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:24:08,385 INFO L225 Difference]: With dead ends: 11350 [2022-11-22 00:24:08,386 INFO L226 Difference]: Without dead ends: 7491 [2022-11-22 00:24:08,410 INFO L412 NwaCegarLoop]: 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 [2022-11-22 00:24:08,411 INFO L413 NwaCegarLoop]: 3360 mSDtfsCounter, 2730 mSDsluCounter, 2625 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2730 SdHoareTripleChecker+Valid, 5985 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-22 00:24:08,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2730 Valid, 5985 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-22 00:24:08,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7491 states. [2022-11-22 00:24:08,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7491 to 7461. [2022-11-22 00:24:08,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7461 states, 4162 states have (on average 1.3092263334935128) internal successors, (5449), 4434 states have internal predecessors, (5449), 2843 states have call successors, (2843), 454 states have call predecessors, (2843), 453 states have return successors, (2863), 2660 states have call predecessors, (2863), 2839 states have call successors, (2863) [2022-11-22 00:24:08,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7461 states to 7461 states and 11155 transitions. [2022-11-22 00:24:08,882 INFO L78 Accepts]: Start accepts. Automaton has 7461 states and 11155 transitions. Word has length 181 [2022-11-22 00:24:08,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:24:08,884 INFO L495 AbstractCegarLoop]: Abstraction has 7461 states and 11155 transitions. [2022-11-22 00:24:08,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-22 00:24:08,886 INFO L276 IsEmpty]: Start isEmpty. Operand 7461 states and 11155 transitions. [2022-11-22 00:24:08,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-22 00:24:08,896 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:24:08,896 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:24:08,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:24:08,897 INFO L420 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)] === [2022-11-22 00:24:08,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:24:08,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1905937143, now seen corresponding path program 1 times [2022-11-22 00:24:08,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:24:08,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633458841] [2022-11-22 00:24:08,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:24:08,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:24:09,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:24:09,204 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-22 00:24:09,204 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:24:09,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633458841] [2022-11-22 00:24:09,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633458841] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:24:09,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:24:09,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:24:09,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88010361] [2022-11-22 00:24:09,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:24:09,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:24:09,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:24:09,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:24:09,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:24:09,207 INFO L87 Difference]: Start difference. First operand 7461 states and 11155 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-22 00:24:13,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:24:13,004 INFO L93 Difference]: Finished difference Result 21045 states and 31407 transitions. [2022-11-22 00:24:13,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:24:13,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 183 [2022-11-22 00:24:13,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:24:13,155 INFO L225 Difference]: With dead ends: 21045 [2022-11-22 00:24:13,155 INFO L226 Difference]: Without dead ends: 13615 [2022-11-22 00:24:13,283 INFO L412 NwaCegarLoop]: 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 [2022-11-22 00:24:13,284 INFO L413 NwaCegarLoop]: 3397 mSDtfsCounter, 2429 mSDsluCounter, 2598 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2429 SdHoareTripleChecker+Valid, 5995 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:24:13,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2429 Valid, 5995 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-22 00:24:13,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13615 states. [2022-11-22 00:24:14,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13615 to 13573. [2022-11-22 00:24:14,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13573 states, 7598 states have (on average 1.3060015793629902) internal successors, (9923), 8108 states have internal predecessors, (9923), 5087 states have call successors, (5087), 886 states have call predecessors, (5087), 885 states have return successors, (5217), 4722 states have call predecessors, (5217), 5083 states have call successors, (5217) [2022-11-22 00:24:14,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13573 states to 13573 states and 20227 transitions. [2022-11-22 00:24:14,268 INFO L78 Accepts]: Start accepts. Automaton has 13573 states and 20227 transitions. Word has length 183 [2022-11-22 00:24:14,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:24:14,270 INFO L495 AbstractCegarLoop]: Abstraction has 13573 states and 20227 transitions. [2022-11-22 00:24:14,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-22 00:24:14,271 INFO L276 IsEmpty]: Start isEmpty. Operand 13573 states and 20227 transitions. [2022-11-22 00:24:14,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-11-22 00:24:14,278 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:24:14,278 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:24:14,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 00:24:14,279 INFO L420 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)] === [2022-11-22 00:24:14,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:24:14,280 INFO L85 PathProgramCache]: Analyzing trace with hash 672502092, now seen corresponding path program 1 times [2022-11-22 00:24:14,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:24:14,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537563043] [2022-11-22 00:24:14,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:24:14,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:24:14,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:24:15,065 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-22 00:24:15,065 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:24:15,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537563043] [2022-11-22 00:24:15,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537563043] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:24:15,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:24:15,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 00:24:15,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614364351] [2022-11-22 00:24:15,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:24:15,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 00:24:15,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:24:15,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 00:24:15,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:24:15,068 INFO L87 Difference]: Start difference. First operand 13573 states and 20227 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-22 00:24:25,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:24:28,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:24:30,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:24:30,806 INFO L93 Difference]: Finished difference Result 35474 states and 52827 transitions. [2022-11-22 00:24:30,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 00:24:30,807 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 186 [2022-11-22 00:24:30,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:24:30,938 INFO L225 Difference]: With dead ends: 35474 [2022-11-22 00:24:30,939 INFO L226 Difference]: Without dead ends: 21932 [2022-11-22 00:24:31,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:24:31,017 INFO L413 NwaCegarLoop]: 4710 mSDtfsCounter, 7085 mSDsluCounter, 6035 mSDsCounter, 0 mSdLazyCounter, 4583 mSolverCounterSat, 1145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7356 SdHoareTripleChecker+Valid, 10745 SdHoareTripleChecker+Invalid, 5728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1145 IncrementalHoareTripleChecker+Valid, 4583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:24:31,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7356 Valid, 10745 Invalid, 5728 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1145 Valid, 4583 Invalid, 0 Unknown, 0 Unchecked, 14.1s Time] [2022-11-22 00:24:31,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21932 states. [2022-11-22 00:24:32,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21932 to 21860. [2022-11-22 00:24:32,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21860 states, 12259 states have (on average 1.3067134350273268) internal successors, (16019), 13127 states have internal predecessors, (16019), 8144 states have call successors, (8144), 1463 states have call predecessors, (8144), 1454 states have return successors, (8295), 7491 states have call predecessors, (8295), 8140 states have call successors, (8295) [2022-11-22 00:24:32,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21860 states to 21860 states and 32458 transitions. [2022-11-22 00:24:32,757 INFO L78 Accepts]: Start accepts. Automaton has 21860 states and 32458 transitions. Word has length 186 [2022-11-22 00:24:32,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:24:32,758 INFO L495 AbstractCegarLoop]: Abstraction has 21860 states and 32458 transitions. [2022-11-22 00:24:32,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-22 00:24:32,758 INFO L276 IsEmpty]: Start isEmpty. Operand 21860 states and 32458 transitions. [2022-11-22 00:24:32,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-22 00:24:32,763 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:24:32,763 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:24:32,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 00:24:32,764 INFO L420 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)] === [2022-11-22 00:24:32,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:24:32,764 INFO L85 PathProgramCache]: Analyzing trace with hash 605172911, now seen corresponding path program 1 times [2022-11-22 00:24:32,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:24:32,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432004202] [2022-11-22 00:24:32,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:24:32,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:24:32,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:24:33,204 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-22 00:24:33,204 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:24:33,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432004202] [2022-11-22 00:24:33,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432004202] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:24:33,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:24:33,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:24:33,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786552981] [2022-11-22 00:24:33,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:24:33,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:24:33,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:24:33,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:24:33,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:24:33,207 INFO L87 Difference]: Start difference. First operand 21860 states and 32458 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-22 00:24:37,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:24:37,863 INFO L93 Difference]: Finished difference Result 64262 states and 95366 transitions. [2022-11-22 00:24:37,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:24:37,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 187 [2022-11-22 00:24:37,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:24:38,155 INFO L225 Difference]: With dead ends: 64262 [2022-11-22 00:24:38,156 INFO L226 Difference]: Without dead ends: 42433 [2022-11-22 00:24:38,294 INFO L412 NwaCegarLoop]: 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 [2022-11-22 00:24:38,294 INFO L413 NwaCegarLoop]: 3489 mSDtfsCounter, 2883 mSDsluCounter, 2571 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2883 SdHoareTripleChecker+Valid, 6060 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-22 00:24:38,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2883 Valid, 6060 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-22 00:24:38,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42433 states. [2022-11-22 00:24:41,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42433 to 42343. [2022-11-22 00:24:41,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42343 states, 23751 states have (on average 1.3084922740095153) internal successors, (31078), 25479 states have internal predecessors, (31078), 15732 states have call successors, (15732), 2872 states have call predecessors, (15732), 2857 states have return successors, (16031), 14421 states have call predecessors, (16031), 15728 states have call successors, (16031) [2022-11-22 00:24:41,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42343 states to 42343 states and 62841 transitions. [2022-11-22 00:24:41,513 INFO L78 Accepts]: Start accepts. Automaton has 42343 states and 62841 transitions. Word has length 187 [2022-11-22 00:24:41,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:24:41,514 INFO L495 AbstractCegarLoop]: Abstraction has 42343 states and 62841 transitions. [2022-11-22 00:24:41,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-22 00:24:41,514 INFO L276 IsEmpty]: Start isEmpty. Operand 42343 states and 62841 transitions. [2022-11-22 00:24:41,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-11-22 00:24:41,525 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:24:41,525 INFO L195 NwaCegarLoop]: trace histogram [17, 15, 15, 15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:24:41,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 00:24:41,525 INFO L420 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)] === [2022-11-22 00:24:41,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:24:41,526 INFO L85 PathProgramCache]: Analyzing trace with hash -319869424, now seen corresponding path program 1 times [2022-11-22 00:24:41,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:24:41,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573787492] [2022-11-22 00:24:41,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:24:41,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:24:41,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:24:41,774 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 902 trivial. 0 not checked. [2022-11-22 00:24:41,774 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:24:41,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573787492] [2022-11-22 00:24:41,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573787492] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:24:41,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:24:41,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:24:41,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668031994] [2022-11-22 00:24:41,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:24:41,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:24:41,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:24:41,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:24:41,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:24:41,777 INFO L87 Difference]: Start difference. First operand 42343 states and 62841 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-22 00:24:48,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:24:48,453 INFO L93 Difference]: Finished difference Result 117885 states and 175178 transitions. [2022-11-22 00:24:48,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:24:48,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 209 [2022-11-22 00:24:48,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:24:49,035 INFO L225 Difference]: With dead ends: 117885 [2022-11-22 00:24:49,035 INFO L226 Difference]: Without dead ends: 75573 [2022-11-22 00:24:49,497 INFO L412 NwaCegarLoop]: 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 [2022-11-22 00:24:49,498 INFO L413 NwaCegarLoop]: 3475 mSDtfsCounter, 2910 mSDsluCounter, 2623 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2910 SdHoareTripleChecker+Valid, 6098 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-22 00:24:49,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2910 Valid, 6098 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-22 00:24:49,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75573 states. [2022-11-22 00:24:53,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75573 to 75499. [2022-11-22 00:24:53,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75499 states, 42290 states have (on average 1.3088673445258927) internal successors, (55352), 45377 states have internal predecessors, (55352), 28154 states have call successors, (28154), 5085 states have call predecessors, (28154), 5052 states have return successors, (28744), 25802 states have call predecessors, (28744), 28150 states have call successors, (28744) [2022-11-22 00:24:54,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75499 states to 75499 states and 112250 transitions. [2022-11-22 00:24:54,556 INFO L78 Accepts]: Start accepts. Automaton has 75499 states and 112250 transitions. Word has length 209 [2022-11-22 00:24:54,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:24:54,557 INFO L495 AbstractCegarLoop]: Abstraction has 75499 states and 112250 transitions. [2022-11-22 00:24:54,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-22 00:24:54,557 INFO L276 IsEmpty]: Start isEmpty. Operand 75499 states and 112250 transitions. [2022-11-22 00:24:54,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-22 00:24:54,571 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:24:54,571 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:24:54,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 00:24:54,572 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 00:24:54,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:24:54,572 INFO L85 PathProgramCache]: Analyzing trace with hash 887520732, now seen corresponding path program 1 times [2022-11-22 00:24:54,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:24:54,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696586713] [2022-11-22 00:24:54,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:24:54,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:24:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:24:55,276 INFO L134 CoverageAnalysis]: Checked inductivity of 1006 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1006 trivial. 0 not checked. [2022-11-22 00:24:55,277 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:24:55,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696586713] [2022-11-22 00:24:55,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696586713] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:24:55,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:24:55,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:24:55,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218348797] [2022-11-22 00:24:55,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:24:55,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:24:55,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:24:55,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:24:55,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:24:55,280 INFO L87 Difference]: Start difference. First operand 75499 states and 112250 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-22 00:25:03,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:25:03,350 INFO L93 Difference]: Finished difference Result 75505 states and 112255 transitions. [2022-11-22 00:25:03,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:25:03,350 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 218 [2022-11-22 00:25:03,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:25:03,894 INFO L225 Difference]: With dead ends: 75505 [2022-11-22 00:25:03,894 INFO L226 Difference]: Without dead ends: 75503 [2022-11-22 00:25:03,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:25:03,949 INFO L413 NwaCegarLoop]: 2622 mSDtfsCounter, 2913 mSDsluCounter, 5230 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2925 SdHoareTripleChecker+Valid, 7852 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-22 00:25:03,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2925 Valid, 7852 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-22 00:25:04,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75503 states. [2022-11-22 00:25:08,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75503 to 75503. [2022-11-22 00:25:08,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75503 states, 42293 states have (on average 1.308845435414844) internal successors, (55355), 45380 states have internal predecessors, (55355), 28154 states have call successors, (28154), 5086 states have call predecessors, (28154), 5053 states have return successors, (28744), 25802 states have call predecessors, (28744), 28150 states have call successors, (28744) [2022-11-22 00:25:08,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75503 states to 75503 states and 112253 transitions. [2022-11-22 00:25:08,747 INFO L78 Accepts]: Start accepts. Automaton has 75503 states and 112253 transitions. Word has length 218 [2022-11-22 00:25:08,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:25:08,747 INFO L495 AbstractCegarLoop]: Abstraction has 75503 states and 112253 transitions. [2022-11-22 00:25:08,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-22 00:25:08,748 INFO L276 IsEmpty]: Start isEmpty. Operand 75503 states and 112253 transitions. [2022-11-22 00:25:08,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-11-22 00:25:08,759 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:25:08,759 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:25:08,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 00:25:08,759 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 00:25:08,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:25:08,760 INFO L85 PathProgramCache]: Analyzing trace with hash -767182293, now seen corresponding path program 1 times [2022-11-22 00:25:08,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:25:08,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014047446] [2022-11-22 00:25:08,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:25:08,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:25:08,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:25:09,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1008 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1006 trivial. 0 not checked. [2022-11-22 00:25:09,252 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:25:09,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014047446] [2022-11-22 00:25:09,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014047446] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:25:09,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:25:09,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:25:09,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026152051] [2022-11-22 00:25:09,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:25:09,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:25:09,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:25:09,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:25:09,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:25:09,255 INFO L87 Difference]: Start difference. First operand 75503 states and 112253 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-22 00:25:17,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:25:17,644 INFO L93 Difference]: Finished difference Result 75509 states and 112258 transitions. [2022-11-22 00:25:17,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:25:17,644 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 223 [2022-11-22 00:25:17,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:25:18,074 INFO L225 Difference]: With dead ends: 75509 [2022-11-22 00:25:18,074 INFO L226 Difference]: Without dead ends: 75507 [2022-11-22 00:25:18,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:25:18,113 INFO L413 NwaCegarLoop]: 2625 mSDtfsCounter, 2908 mSDsluCounter, 5230 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2919 SdHoareTripleChecker+Valid, 7855 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:25:18,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2919 Valid, 7855 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-22 00:25:18,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75507 states.