./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-farsync.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3dcd453e519a411dcaaa8ea095e5544a2fd8cdb9a31e662fc6de670ff7f7c541 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 15:32:55,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 15:32:55,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 15:32:55,942 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 15:32:55,942 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 15:32:55,943 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 15:32:55,945 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 15:32:55,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 15:32:55,948 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 15:32:55,949 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 15:32:55,949 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 15:32:55,950 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 15:32:55,951 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 15:32:55,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 15:32:55,953 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 15:32:55,954 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 15:32:55,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 15:32:55,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 15:32:55,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 15:32:55,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 15:32:55,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 15:32:55,968 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 15:32:55,969 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 15:32:55,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 15:32:55,974 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 15:32:55,979 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 15:32:55,979 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 15:32:55,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 15:32:55,981 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 15:32:55,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 15:32:55,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 15:32:55,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 15:32:55,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 15:32:55,985 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 15:32:55,986 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 15:32:55,986 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 15:32:55,987 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 15:32:55,988 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 15:32:55,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 15:32:55,988 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 15:32:55,989 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 15:32:55,991 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 15:32:56,022 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 15:32:56,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 15:32:56,023 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 15:32:56,023 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 15:32:56,024 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 15:32:56,024 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 15:32:56,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 15:32:56,025 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 15:32:56,025 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 15:32:56,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 15:32:56,026 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 15:32:56,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 15:32:56,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 15:32:56,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 15:32:56,027 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 15:32:56,027 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 15:32:56,027 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 15:32:56,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 15:32:56,028 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 15:32:56,028 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 15:32:56,028 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 15:32:56,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:32:56,029 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 15:32:56,029 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 15:32:56,029 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 15:32:56,029 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 15:32:56,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 15:32:56,030 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 15:32:56,031 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 15:32:56,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 15:32:56,031 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 15:32:56,031 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3dcd453e519a411dcaaa8ea095e5544a2fd8cdb9a31e662fc6de670ff7f7c541 [2021-12-22 15:32:56,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 15:32:56,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 15:32:56,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 15:32:56,299 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 15:32:56,299 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 15:32:56,301 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i [2021-12-22 15:32:56,373 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bbfee443/d4d06ee956be4a9a806cae20ad2a4272/FLAG07bb313e5 [2021-12-22 15:32:57,067 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 15:32:57,069 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i [2021-12-22 15:32:57,110 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bbfee443/d4d06ee956be4a9a806cae20ad2a4272/FLAG07bb313e5 [2021-12-22 15:32:57,149 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bbfee443/d4d06ee956be4a9a806cae20ad2a4272 [2021-12-22 15:32:57,151 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 15:32:57,152 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 15:32:57,154 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 15:32:57,154 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 15:32:57,156 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 15:32:57,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:32:57" (1/1) ... [2021-12-22 15:32:57,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5844163f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:32:57, skipping insertion in model container [2021-12-22 15:32:57,157 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:32:57" (1/1) ... [2021-12-22 15:32:57,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 15:32:57,279 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 15:32:59,245 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[320934,320947] [2021-12-22 15:32:59,247 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321103,321116] [2021-12-22 15:32:59,248 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321270,321283] [2021-12-22 15:32:59,249 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321438,321451] [2021-12-22 15:32:59,264 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:32:59,294 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 15:32:59,620 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[320934,320947] [2021-12-22 15:32:59,621 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321103,321116] [2021-12-22 15:32:59,621 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321270,321283] [2021-12-22 15:32:59,621 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321438,321451] [2021-12-22 15:32:59,628 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:32:59,769 INFO L208 MainTranslator]: Completed translation [2021-12-22 15:32:59,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:32:59 WrapperNode [2021-12-22 15:32:59,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 15:32:59,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 15:32:59,771 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 15:32:59,771 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 15:32:59,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:32:59" (1/1) ... [2021-12-22 15:32:59,875 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:32:59" (1/1) ... [2021-12-22 15:33:00,077 INFO L137 Inliner]: procedures = 418, calls = 1969, calls flagged for inlining = 195, calls inlined = 179, statements flattened = 5220 [2021-12-22 15:33:00,078 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 15:33:00,079 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 15:33:00,079 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 15:33:00,079 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 15:33:00,087 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:32:59" (1/1) ... [2021-12-22 15:33:00,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:32:59" (1/1) ... [2021-12-22 15:33:00,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:32:59" (1/1) ... [2021-12-22 15:33:00,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:32:59" (1/1) ... [2021-12-22 15:33:00,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:32:59" (1/1) ... [2021-12-22 15:33:00,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:32:59" (1/1) ... [2021-12-22 15:33:00,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:32:59" (1/1) ... [2021-12-22 15:33:00,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 15:33:00,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 15:33:00,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 15:33:00,333 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 15:33:00,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:32:59" (1/1) ... [2021-12-22 15:33:00,340 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:33:00,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:33:00,364 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 15:33:00,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 15:33:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_fst_cleanup_module_12_2 [2021-12-22 15:33:00,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_fst_cleanup_module_12_2 [2021-12-22 15:33:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-22 15:33:00,401 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-22 15:33:00,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-22 15:33:00,402 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-22 15:33:00,402 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-22 15:33:00,402 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-22 15:33:00,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 15:33:00,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 15:33:00,403 INFO L130 BoogieDeclarations]: Found specification of procedure fst_remove_one [2021-12-22 15:33:00,403 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_remove_one [2021-12-22 15:33:00,403 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-22 15:33:00,403 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-22 15:33:00,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-22 15:33:00,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-22 15:33:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-22 15:33:00,404 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-22 15:33:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-22 15:33:00,404 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-22 15:33:00,405 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2021-12-22 15:33:00,405 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2021-12-22 15:33:00,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2021-12-22 15:33:00,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2021-12-22 15:33:00,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_67 [2021-12-22 15:33:00,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_67 [2021-12-22 15:33:00,406 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-22 15:33:00,406 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-22 15:33:00,406 INFO L130 BoogieDeclarations]: Found specification of procedure fst_close [2021-12-22 15:33:00,406 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_close [2021-12-22 15:33:00,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-22 15:33:00,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-22 15:33:00,407 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-12-22 15:33:00,407 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-12-22 15:33:00,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-22 15:33:00,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-22 15:33:00,407 INFO L130 BoogieDeclarations]: Found specification of procedure fst_tx_timeout [2021-12-22 15:33:00,407 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_tx_timeout [2021-12-22 15:33:00,408 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 15:33:00,408 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 15:33:00,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 15:33:00,408 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-22 15:33:00,408 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-22 15:33:00,408 INFO L130 BoogieDeclarations]: Found specification of procedure fst_open [2021-12-22 15:33:00,409 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_open [2021-12-22 15:33:00,409 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_type_trans [2021-12-22 15:33:00,409 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_type_trans [2021-12-22 15:33:00,409 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-22 15:33:00,410 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-22 15:33:00,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 15:33:00,410 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-22 15:33:00,411 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-22 15:33:00,411 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-22 15:33:00,412 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-22 15:33:00,412 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-22 15:33:00,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-22 15:33:00,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 15:33:00,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-22 15:33:00,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-22 15:33:00,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 15:33:00,413 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2021-12-22 15:33:00,413 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2021-12-22 15:33:00,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 15:33:00,414 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 15:33:00,414 INFO L130 BoogieDeclarations]: Found specification of procedure fst_issue_cmd [2021-12-22 15:33:00,414 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_issue_cmd [2021-12-22 15:33:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-22 15:33:00,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-22 15:33:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-22 15:33:00,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-22 15:33:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-22 15:33:00,415 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-22 15:33:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-22 15:33:00,416 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-22 15:33:00,416 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-22 15:33:00,416 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-22 15:33:00,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-22 15:33:00,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-22 15:33:00,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 15:33:00,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-22 15:33:00,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-22 15:33:00,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-12-22 15:33:00,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-12-22 15:33:00,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_card_lock_of_fst_card_info [2021-12-22 15:33:00,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_card_lock_of_fst_card_info [2021-12-22 15:33:00,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 15:33:00,418 INFO L130 BoogieDeclarations]: Found specification of procedure fst_cpureset [2021-12-22 15:33:00,418 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_cpureset [2021-12-22 15:33:00,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-22 15:33:00,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-22 15:33:00,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 15:33:00,419 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 15:33:00,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 15:33:00,420 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-12-22 15:33:00,420 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-12-22 15:33:00,420 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-22 15:33:00,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-22 15:33:00,420 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2021-12-22 15:33:00,420 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2021-12-22 15:33:00,420 INFO L130 BoogieDeclarations]: Found specification of procedure fst_q_work_item [2021-12-22 15:33:00,421 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_q_work_item [2021-12-22 15:33:00,421 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-22 15:33:00,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-22 15:33:00,421 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-22 15:33:00,421 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-22 15:33:00,421 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-22 15:33:00,422 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-22 15:33:00,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-22 15:33:00,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-22 15:33:00,422 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-22 15:33:00,422 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-22 15:33:00,423 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2021-12-22 15:33:00,424 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2021-12-22 15:33:00,426 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-12-22 15:33:00,426 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-12-22 15:33:00,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 15:33:00,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 15:33:00,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 15:33:00,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 15:33:00,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 15:33:00,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 15:33:00,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-22 15:33:00,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-22 15:33:00,433 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-22 15:33:00,434 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-22 15:33:00,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 15:33:00,434 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 15:33:00,434 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-22 15:33:00,434 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-22 15:33:00,434 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-22 15:33:00,434 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-22 15:33:00,434 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-22 15:33:00,435 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-22 15:33:00,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 15:33:00,435 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2021-12-22 15:33:00,435 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2021-12-22 15:33:00,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 15:33:00,435 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2021-12-22 15:33:00,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2021-12-22 15:33:00,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 15:33:00,436 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-22 15:33:00,436 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-22 15:33:00,436 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-22 15:33:00,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-22 15:33:00,436 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-12-22 15:33:00,436 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-12-22 15:33:00,437 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-22 15:33:00,437 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-22 15:33:00,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-22 15:33:00,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-22 15:33:00,437 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-12-22 15:33:00,437 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-12-22 15:33:00,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-22 15:33:00,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-22 15:33:00,438 INFO L130 BoogieDeclarations]: Found specification of procedure farsync_type_trans [2021-12-22 15:33:00,438 INFO L138 BoogieDeclarations]: Found implementation of procedure farsync_type_trans [2021-12-22 15:33:00,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-22 15:33:00,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-22 15:33:00,438 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-22 15:33:00,439 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-22 15:33:00,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_fst_work_q_lock [2021-12-22 15:33:00,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_fst_work_q_lock [2021-12-22 15:33:00,439 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 15:33:00,439 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 15:33:00,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 15:33:00,439 INFO L130 BoogieDeclarations]: Found specification of procedure fst_disable_intr [2021-12-22 15:33:00,440 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_disable_intr [2021-12-22 15:33:00,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 15:33:00,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 15:33:00,440 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-22 15:33:00,440 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-22 15:33:00,440 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-22 15:33:00,440 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-22 15:33:00,441 INFO L130 BoogieDeclarations]: Found specification of procedure do_bottom_half_tx [2021-12-22 15:33:00,441 INFO L138 BoogieDeclarations]: Found implementation of procedure do_bottom_half_tx [2021-12-22 15:33:00,441 INFO L130 BoogieDeclarations]: Found specification of procedure fst_process_rx_status [2021-12-22 15:33:00,441 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_process_rx_status [2021-12-22 15:33:00,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-22 15:33:00,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-22 15:33:00,441 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2021-12-22 15:33:00,442 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2021-12-22 15:33:00,442 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_ioctl [2021-12-22 15:33:00,442 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_ioctl [2021-12-22 15:33:00,442 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-22 15:33:00,442 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-22 15:33:00,442 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-22 15:33:00,442 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-22 15:33:00,442 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-12-22 15:33:00,443 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-12-22 15:33:00,443 INFO L130 BoogieDeclarations]: Found specification of procedure fst_clear_intr [2021-12-22 15:33:00,443 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_clear_intr [2021-12-22 15:33:00,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 15:33:00,443 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2021-12-22 15:33:00,443 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2021-12-22 15:33:00,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-22 15:33:00,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-22 15:33:00,444 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2021-12-22 15:33:00,444 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2021-12-22 15:33:01,094 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 15:33:01,097 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 15:33:01,214 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 15:33:03,846 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-22 15:33:03,955 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 15:33:03,974 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 15:33:03,974 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 15:33:03,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:33:03 BoogieIcfgContainer [2021-12-22 15:33:03,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 15:33:03,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 15:33:03,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 15:33:03,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 15:33:03,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:32:57" (1/3) ... [2021-12-22 15:33:03,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b60b882 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:33:03, skipping insertion in model container [2021-12-22 15:33:03,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:32:59" (2/3) ... [2021-12-22 15:33:03,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b60b882 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:33:03, skipping insertion in model container [2021-12-22 15:33:03,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:33:03" (3/3) ... [2021-12-22 15:33:03,984 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i [2021-12-22 15:33:03,989 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 15:33:03,989 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-22 15:33:04,035 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 15:33:04,040 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 15:33:04,040 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-22 15:33:04,096 INFO L276 IsEmpty]: Start isEmpty. Operand has 1831 states, 1250 states have (on average 1.2888) internal successors, (1611), 1264 states have internal predecessors, (1611), 488 states have call successors, (488), 91 states have call predecessors, (488), 90 states have return successors, (481), 479 states have call predecessors, (481), 481 states have call successors, (481) [2021-12-22 15:33:04,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-22 15:33:04,108 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:33:04,109 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:33:04,109 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:33:04,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:33:04,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1894555344, now seen corresponding path program 1 times [2021-12-22 15:33:04,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:33:04,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159860015] [2021-12-22 15:33:04,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:33:04,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:33:04,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:04,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:33:04,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:04,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:04,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:04,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:33:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:04,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:04,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:04,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:33:04,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:04,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:04,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:04,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:33:04,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:04,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:04,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:04,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:33:04,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:04,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:04,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:04,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-22 15:33:04,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:04,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 15:33:04,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:04,807 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-22 15:33:04,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:33:04,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159860015] [2021-12-22 15:33:04,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159860015] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:33:04,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:33:04,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 15:33:04,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607798478] [2021-12-22 15:33:04,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:33:04,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 15:33:04,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:33:04,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 15:33:04,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:33:04,857 INFO L87 Difference]: Start difference. First operand has 1831 states, 1250 states have (on average 1.2888) internal successors, (1611), 1264 states have internal predecessors, (1611), 488 states have call successors, (488), 91 states have call predecessors, (488), 90 states have return successors, (481), 479 states have call predecessors, (481), 481 states have call successors, (481) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-22 15:33:08,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:33:08,815 INFO L93 Difference]: Finished difference Result 5375 states and 7700 transitions. [2021-12-22 15:33:08,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:33:08,818 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 83 [2021-12-22 15:33:08,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:33:08,860 INFO L225 Difference]: With dead ends: 5375 [2021-12-22 15:33:08,860 INFO L226 Difference]: Without dead ends: 3548 [2021-12-22 15:33:08,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:33:08,885 INFO L933 BasicCegarLoop]: 2739 mSDtfsCounter, 2906 mSDsluCounter, 2904 mSDsCounter, 0 mSdLazyCounter, 1657 mSolverCounterSat, 1338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3348 SdHoareTripleChecker+Valid, 5643 SdHoareTripleChecker+Invalid, 2995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1338 IncrementalHoareTripleChecker+Valid, 1657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-12-22 15:33:08,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3348 Valid, 5643 Invalid, 2995 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1338 Valid, 1657 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-12-22 15:33:08,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3548 states. [2021-12-22 15:33:09,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3548 to 3526. [2021-12-22 15:33:09,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3526 states, 2425 states have (on average 1.285360824742268) internal successors, (3117), 2452 states have internal predecessors, (3117), 922 states have call successors, (922), 177 states have call predecessors, (922), 176 states have return successors, (918), 914 states have call predecessors, (918), 918 states have call successors, (918) [2021-12-22 15:33:09,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3526 states to 3526 states and 4957 transitions. [2021-12-22 15:33:09,107 INFO L78 Accepts]: Start accepts. Automaton has 3526 states and 4957 transitions. Word has length 83 [2021-12-22 15:33:09,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:33:09,109 INFO L470 AbstractCegarLoop]: Abstraction has 3526 states and 4957 transitions. [2021-12-22 15:33:09,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-22 15:33:09,110 INFO L276 IsEmpty]: Start isEmpty. Operand 3526 states and 4957 transitions. [2021-12-22 15:33:09,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-22 15:33:09,116 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:33:09,116 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:33:09,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 15:33:09,116 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:33:09,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:33:09,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1557885216, now seen corresponding path program 1 times [2021-12-22 15:33:09,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:33:09,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31992891] [2021-12-22 15:33:09,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:33:09,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:33:09,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:09,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:33:09,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:09,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:09,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:09,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:33:09,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:09,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:09,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:09,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:33:09,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:09,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:09,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:09,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:33:09,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:09,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:09,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:09,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:33:09,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:09,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:09,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:09,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-22 15:33:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:09,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:33:09,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:09,347 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-22 15:33:09,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:33:09,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31992891] [2021-12-22 15:33:09,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31992891] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:33:09,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:33:09,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 15:33:09,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969011759] [2021-12-22 15:33:09,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:33:09,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 15:33:09,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:33:09,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 15:33:09,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:33:09,351 INFO L87 Difference]: Start difference. First operand 3526 states and 4957 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-22 15:33:12,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:33:12,839 INFO L93 Difference]: Finished difference Result 9738 states and 13652 transitions. [2021-12-22 15:33:12,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:33:12,841 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 95 [2021-12-22 15:33:12,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:33:12,882 INFO L225 Difference]: With dead ends: 9738 [2021-12-22 15:33:12,883 INFO L226 Difference]: Without dead ends: 6227 [2021-12-22 15:33:12,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:33:12,898 INFO L933 BasicCegarLoop]: 2637 mSDtfsCounter, 2403 mSDsluCounter, 2916 mSDsCounter, 0 mSdLazyCounter, 1572 mSolverCounterSat, 1263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2752 SdHoareTripleChecker+Valid, 5553 SdHoareTripleChecker+Invalid, 2835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1263 IncrementalHoareTripleChecker+Valid, 1572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-12-22 15:33:12,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2752 Valid, 5553 Invalid, 2835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1263 Valid, 1572 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-12-22 15:33:12,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6227 states. [2021-12-22 15:33:13,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6227 to 6161. [2021-12-22 15:33:13,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6161 states, 4222 states have (on average 1.2806726669824728) internal successors, (5407), 4274 states have internal predecessors, (5407), 1599 states have call successors, (1599), 338 states have call predecessors, (1599), 337 states have return successors, (1601), 1580 states have call predecessors, (1601), 1595 states have call successors, (1601) [2021-12-22 15:33:13,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6161 states to 6161 states and 8607 transitions. [2021-12-22 15:33:13,165 INFO L78 Accepts]: Start accepts. Automaton has 6161 states and 8607 transitions. Word has length 95 [2021-12-22 15:33:13,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:33:13,166 INFO L470 AbstractCegarLoop]: Abstraction has 6161 states and 8607 transitions. [2021-12-22 15:33:13,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-22 15:33:13,167 INFO L276 IsEmpty]: Start isEmpty. Operand 6161 states and 8607 transitions. [2021-12-22 15:33:13,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-22 15:33:13,171 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:33:13,171 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:33:13,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 15:33:13,172 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:33:13,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:33:13,172 INFO L85 PathProgramCache]: Analyzing trace with hash 464683726, now seen corresponding path program 1 times [2021-12-22 15:33:13,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:33:13,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631744262] [2021-12-22 15:33:13,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:33:13,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:33:13,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:13,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:33:13,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:13,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:13,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:13,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:33:13,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:13,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:13,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:13,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:33:13,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:13,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:13,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:13,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:33:13,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:13,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:13,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:13,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:33:13,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:13,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:13,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-22 15:33:13,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:13,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 15:33:13,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:13,414 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-22 15:33:13,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:33:13,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631744262] [2021-12-22 15:33:13,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631744262] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:33:13,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:33:13,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 15:33:13,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911565444] [2021-12-22 15:33:13,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:33:13,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 15:33:13,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:33:13,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 15:33:13,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:33:13,419 INFO L87 Difference]: Start difference. First operand 6161 states and 8607 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-22 15:33:16,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:33:16,529 INFO L93 Difference]: Finished difference Result 11987 states and 16767 transitions. [2021-12-22 15:33:16,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:33:16,532 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 93 [2021-12-22 15:33:16,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:33:16,559 INFO L225 Difference]: With dead ends: 11987 [2021-12-22 15:33:16,560 INFO L226 Difference]: Without dead ends: 5841 [2021-12-22 15:33:16,581 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:33:16,582 INFO L933 BasicCegarLoop]: 3000 mSDtfsCounter, 2083 mSDsluCounter, 3046 mSDsCounter, 0 mSdLazyCounter, 1594 mSolverCounterSat, 1002 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2449 SdHoareTripleChecker+Valid, 6046 SdHoareTripleChecker+Invalid, 2596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1002 IncrementalHoareTripleChecker+Valid, 1594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-12-22 15:33:16,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2449 Valid, 6046 Invalid, 2596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1002 Valid, 1594 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-12-22 15:33:16,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5841 states. [2021-12-22 15:33:16,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5841 to 5789. [2021-12-22 15:33:16,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5789 states, 4010 states have (on average 1.2892768079800498) internal successors, (5170), 4058 states have internal predecessors, (5170), 1442 states have call successors, (1442), 337 states have call predecessors, (1442), 334 states have return successors, (1441), 1419 states have call predecessors, (1441), 1438 states have call successors, (1441) [2021-12-22 15:33:16,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5789 states to 5789 states and 8053 transitions. [2021-12-22 15:33:16,857 INFO L78 Accepts]: Start accepts. Automaton has 5789 states and 8053 transitions. Word has length 93 [2021-12-22 15:33:16,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:33:16,859 INFO L470 AbstractCegarLoop]: Abstraction has 5789 states and 8053 transitions. [2021-12-22 15:33:16,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-22 15:33:16,860 INFO L276 IsEmpty]: Start isEmpty. Operand 5789 states and 8053 transitions. [2021-12-22 15:33:16,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-22 15:33:16,862 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:33:16,862 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:33:16,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 15:33:16,863 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:33:16,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:33:16,864 INFO L85 PathProgramCache]: Analyzing trace with hash 959535160, now seen corresponding path program 1 times [2021-12-22 15:33:16,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:33:16,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756139397] [2021-12-22 15:33:16,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:33:16,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:33:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:16,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:33:16,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:16,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:16,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:16,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:33:16,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:16,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:16,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:16,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:33:16,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:17,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:17,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:17,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:33:17,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:17,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:17,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:17,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:33:17,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:17,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:17,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:17,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-22 15:33:17,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:17,044 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-22 15:33:17,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:33:17,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756139397] [2021-12-22 15:33:17,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756139397] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:33:17,044 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:33:17,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 15:33:17,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676460368] [2021-12-22 15:33:17,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:33:17,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 15:33:17,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:33:17,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 15:33:17,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:33:17,046 INFO L87 Difference]: Start difference. First operand 5789 states and 8053 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-22 15:33:20,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:33:20,337 INFO L93 Difference]: Finished difference Result 16029 states and 22227 transitions. [2021-12-22 15:33:20,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:33:20,337 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 91 [2021-12-22 15:33:20,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:33:20,386 INFO L225 Difference]: With dead ends: 16029 [2021-12-22 15:33:20,386 INFO L226 Difference]: Without dead ends: 10255 [2021-12-22 15:33:20,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:33:20,407 INFO L933 BasicCegarLoop]: 2688 mSDtfsCounter, 2756 mSDsluCounter, 2890 mSDsCounter, 0 mSdLazyCounter, 1674 mSolverCounterSat, 1368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3166 SdHoareTripleChecker+Valid, 5578 SdHoareTripleChecker+Invalid, 3042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1368 IncrementalHoareTripleChecker+Valid, 1674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:33:20,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3166 Valid, 5578 Invalid, 3042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1368 Valid, 1674 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-12-22 15:33:20,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10255 states. [2021-12-22 15:33:20,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10255 to 10179. [2021-12-22 15:33:20,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10179 states, 7048 states have (on average 1.2775255391600453) internal successors, (9004), 7143 states have internal predecessors, (9004), 2508 states have call successors, (2508), 625 states have call predecessors, (2508), 620 states have return successors, (2510), 2455 states have call predecessors, (2510), 2504 states have call successors, (2510) [2021-12-22 15:33:20,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10179 states to 10179 states and 14022 transitions. [2021-12-22 15:33:20,775 INFO L78 Accepts]: Start accepts. Automaton has 10179 states and 14022 transitions. Word has length 91 [2021-12-22 15:33:20,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:33:20,776 INFO L470 AbstractCegarLoop]: Abstraction has 10179 states and 14022 transitions. [2021-12-22 15:33:20,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-22 15:33:20,777 INFO L276 IsEmpty]: Start isEmpty. Operand 10179 states and 14022 transitions. [2021-12-22 15:33:20,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-22 15:33:20,779 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:33:20,779 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:33:20,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 15:33:20,780 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:33:20,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:33:20,780 INFO L85 PathProgramCache]: Analyzing trace with hash 554901829, now seen corresponding path program 1 times [2021-12-22 15:33:20,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:33:20,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952420740] [2021-12-22 15:33:20,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:33:20,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:33:20,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:20,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:33:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:20,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:20,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:33:20,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:20,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:20,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:33:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:20,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:20,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:20,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:33:20,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:20,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:20,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:20,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:33:20,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:20,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:20,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:20,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-22 15:33:20,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:20,988 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-22 15:33:20,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:33:20,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952420740] [2021-12-22 15:33:20,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952420740] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:33:20,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:33:20,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 15:33:20,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843973268] [2021-12-22 15:33:20,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:33:20,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 15:33:20,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:33:20,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 15:33:20,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:33:20,992 INFO L87 Difference]: Start difference. First operand 10179 states and 14022 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-22 15:33:24,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:33:24,465 INFO L93 Difference]: Finished difference Result 29249 states and 40262 transitions. [2021-12-22 15:33:24,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:33:24,465 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 92 [2021-12-22 15:33:24,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:33:24,543 INFO L225 Difference]: With dead ends: 29249 [2021-12-22 15:33:24,543 INFO L226 Difference]: Without dead ends: 19085 [2021-12-22 15:33:24,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:33:24,578 INFO L933 BasicCegarLoop]: 2979 mSDtfsCounter, 2797 mSDsluCounter, 3024 mSDsCounter, 0 mSdLazyCounter, 1698 mSolverCounterSat, 1327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3231 SdHoareTripleChecker+Valid, 6003 SdHoareTripleChecker+Invalid, 3025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1327 IncrementalHoareTripleChecker+Valid, 1698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:33:24,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3231 Valid, 6003 Invalid, 3025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1327 Valid, 1698 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-12-22 15:33:24,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19085 states. [2021-12-22 15:33:25,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19085 to 18959. [2021-12-22 15:33:25,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18959 states, 13152 states have (on average 1.2693886861313868) internal successors, (16695), 13342 states have internal predecessors, (16695), 4633 states have call successors, (4633), 1180 states have call predecessors, (4633), 1171 states have return successors, (4641), 4520 states have call predecessors, (4641), 4629 states have call successors, (4641) [2021-12-22 15:33:25,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18959 states to 18959 states and 25969 transitions. [2021-12-22 15:33:25,319 INFO L78 Accepts]: Start accepts. Automaton has 18959 states and 25969 transitions. Word has length 92 [2021-12-22 15:33:25,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:33:25,321 INFO L470 AbstractCegarLoop]: Abstraction has 18959 states and 25969 transitions. [2021-12-22 15:33:25,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-22 15:33:25,322 INFO L276 IsEmpty]: Start isEmpty. Operand 18959 states and 25969 transitions. [2021-12-22 15:33:25,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-22 15:33:25,323 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:33:25,323 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 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] [2021-12-22 15:33:25,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 15:33:25,324 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:33:25,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:33:25,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1895911466, now seen corresponding path program 1 times [2021-12-22 15:33:25,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:33:25,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51094886] [2021-12-22 15:33:25,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:33:25,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:33:25,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:25,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:33:25,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:25,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:25,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:25,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:33:25,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:25,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:25,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:25,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:33:25,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:25,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:25,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:25,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:33:25,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:25,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:25,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:25,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:33:25,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:25,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:25,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-22 15:33:25,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:25,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 15:33:25,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:25,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:33:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:25,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 15:33:25,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:25,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-22 15:33:25,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:25,515 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-12-22 15:33:25,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:33:25,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51094886] [2021-12-22 15:33:25,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51094886] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:33:25,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:33:25,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 15:33:25,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627272701] [2021-12-22 15:33:25,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:33:25,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 15:33:25,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:33:25,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 15:33:25,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:33:25,518 INFO L87 Difference]: Start difference. First operand 18959 states and 25969 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-22 15:33:28,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:33:28,960 INFO L93 Difference]: Finished difference Result 53075 states and 72634 transitions. [2021-12-22 15:33:28,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:33:28,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 108 [2021-12-22 15:33:28,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:33:29,213 INFO L225 Difference]: With dead ends: 53075 [2021-12-22 15:33:29,213 INFO L226 Difference]: Without dead ends: 34131 [2021-12-22 15:33:29,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:33:29,275 INFO L933 BasicCegarLoop]: 3292 mSDtfsCounter, 2645 mSDsluCounter, 3268 mSDsCounter, 0 mSdLazyCounter, 1600 mSolverCounterSat, 1219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3045 SdHoareTripleChecker+Valid, 6560 SdHoareTripleChecker+Invalid, 2819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1219 IncrementalHoareTripleChecker+Valid, 1600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-12-22 15:33:29,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3045 Valid, 6560 Invalid, 2819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1219 Valid, 1600 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-12-22 15:33:29,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34131 states. [2021-12-22 15:33:30,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34131 to 33921. [2021-12-22 15:33:30,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33921 states, 23505 states have (on average 1.2630929589449054) internal successors, (29689), 23899 states have internal predecessors, (29689), 8304 states have call successors, (8304), 2142 states have call predecessors, (8304), 2109 states have return successors, (8332), 8039 states have call predecessors, (8332), 8300 states have call successors, (8332) [2021-12-22 15:33:30,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33921 states to 33921 states and 46325 transitions. [2021-12-22 15:33:30,536 INFO L78 Accepts]: Start accepts. Automaton has 33921 states and 46325 transitions. Word has length 108 [2021-12-22 15:33:30,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:33:30,537 INFO L470 AbstractCegarLoop]: Abstraction has 33921 states and 46325 transitions. [2021-12-22 15:33:30,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-22 15:33:30,537 INFO L276 IsEmpty]: Start isEmpty. Operand 33921 states and 46325 transitions. [2021-12-22 15:33:30,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-12-22 15:33:30,539 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:33:30,539 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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] [2021-12-22 15:33:30,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-22 15:33:30,540 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:33:30,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:33:30,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1275541526, now seen corresponding path program 1 times [2021-12-22 15:33:30,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:33:30,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543766547] [2021-12-22 15:33:30,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:33:30,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:33:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:30,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:33:30,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:30,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:30,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:30,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:33:30,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:30,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:30,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:30,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:33:30,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:30,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:30,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:30,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:33:30,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:30,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:30,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:30,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:33:30,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:30,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:30,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:30,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-22 15:33:30,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:30,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 15:33:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:30,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-22 15:33:30,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:30,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-22 15:33:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:30,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 15:33:30,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:30,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 15:33:30,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:30,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-22 15:33:30,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:30,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:30,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:30,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-22 15:33:30,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:30,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-22 15:33:30,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:30,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-22 15:33:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:30,738 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2021-12-22 15:33:30,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:33:30,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543766547] [2021-12-22 15:33:30,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543766547] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:33:30,739 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:33:30,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 15:33:30,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947385676] [2021-12-22 15:33:30,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:33:30,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 15:33:30,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:33:30,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 15:33:30,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:33:30,740 INFO L87 Difference]: Start difference. First operand 33921 states and 46325 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-22 15:33:33,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:33:33,580 INFO L93 Difference]: Finished difference Result 67982 states and 92884 transitions. [2021-12-22 15:33:33,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 15:33:33,580 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 150 [2021-12-22 15:33:33,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:33:33,735 INFO L225 Difference]: With dead ends: 67982 [2021-12-22 15:33:33,735 INFO L226 Difference]: Without dead ends: 34153 [2021-12-22 15:33:34,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:33:34,012 INFO L933 BasicCegarLoop]: 2397 mSDtfsCounter, 516 mSDsluCounter, 2929 mSDsCounter, 0 mSdLazyCounter, 1192 mSolverCounterSat, 477 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 5326 SdHoareTripleChecker+Invalid, 1669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 477 IncrementalHoareTripleChecker+Valid, 1192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-22 15:33:34,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [660 Valid, 5326 Invalid, 1669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [477 Valid, 1192 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-22 15:33:34,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34153 states. [2021-12-22 15:33:35,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34153 to 33953. [2021-12-22 15:33:35,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33953 states, 23537 states have (on average 1.26273526787611) internal successors, (29721), 23931 states have internal predecessors, (29721), 8304 states have call successors, (8304), 2142 states have call predecessors, (8304), 2109 states have return successors, (8332), 8039 states have call predecessors, (8332), 8300 states have call successors, (8332) [2021-12-22 15:33:35,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33953 states to 33953 states and 46357 transitions. [2021-12-22 15:33:35,434 INFO L78 Accepts]: Start accepts. Automaton has 33953 states and 46357 transitions. Word has length 150 [2021-12-22 15:33:35,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:33:35,434 INFO L470 AbstractCegarLoop]: Abstraction has 33953 states and 46357 transitions. [2021-12-22 15:33:35,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-22 15:33:35,435 INFO L276 IsEmpty]: Start isEmpty. Operand 33953 states and 46357 transitions. [2021-12-22 15:33:35,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-12-22 15:33:35,437 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:33:35,437 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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] [2021-12-22 15:33:35,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-22 15:33:35,438 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:33:35,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:33:35,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1623084178, now seen corresponding path program 1 times [2021-12-22 15:33:35,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:33:35,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277075047] [2021-12-22 15:33:35,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:33:35,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:33:35,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:33:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:35,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:33:35,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:35,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:33:35,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:35,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:33:35,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:35,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:33:35,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:35,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-22 15:33:35,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 15:33:35,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-22 15:33:35,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-22 15:33:35,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-22 15:33:35,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-22 15:33:35,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 15:33:35,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:35,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-22 15:33:35,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-22 15:33:35,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-22 15:33:35,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,640 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2021-12-22 15:33:35,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:33:35,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277075047] [2021-12-22 15:33:35,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277075047] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 15:33:35,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313805100] [2021-12-22 15:33:35,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:33:35,641 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 15:33:35,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:33:35,643 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 15:33:35,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-22 15:33:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:36,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 1628 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 15:33:36,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 15:33:36,684 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2021-12-22 15:33:36,684 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 15:33:36,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313805100] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:33:36,685 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 15:33:36,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-12-22 15:33:36,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697893463] [2021-12-22 15:33:36,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:33:36,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 15:33:36,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:33:36,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 15:33:36,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:33:36,686 INFO L87 Difference]: Start difference. First operand 33953 states and 46357 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-22 15:33:37,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:33:37,704 INFO L93 Difference]: Finished difference Result 73226 states and 100073 transitions. [2021-12-22 15:33:37,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 15:33:37,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 152 [2021-12-22 15:33:37,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:33:37,882 INFO L225 Difference]: With dead ends: 73226 [2021-12-22 15:33:37,882 INFO L226 Difference]: Without dead ends: 39365 [2021-12-22 15:33:38,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:33:38,159 INFO L933 BasicCegarLoop]: 3026 mSDtfsCounter, 2485 mSDsluCounter, 2076 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2485 SdHoareTripleChecker+Valid, 5102 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:33:38,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2485 Valid, 5102 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:33:38,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39365 states. [2021-12-22 15:33:39,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39365 to 39342. [2021-12-22 15:33:39,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39342 states, 27375 states have (on average 1.2628675799086757) internal successors, (34571), 27781 states have internal predecessors, (34571), 9558 states have call successors, (9558), 2443 states have call predecessors, (9558), 2406 states have return successors, (9594), 9307 states have call predecessors, (9594), 9554 states have call successors, (9594) [2021-12-22 15:33:39,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39342 states to 39342 states and 53723 transitions. [2021-12-22 15:33:39,562 INFO L78 Accepts]: Start accepts. Automaton has 39342 states and 53723 transitions. Word has length 152 [2021-12-22 15:33:39,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:33:39,563 INFO L470 AbstractCegarLoop]: Abstraction has 39342 states and 53723 transitions. [2021-12-22 15:33:39,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-22 15:33:39,563 INFO L276 IsEmpty]: Start isEmpty. Operand 39342 states and 53723 transitions. [2021-12-22 15:33:39,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-12-22 15:33:39,566 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:33:39,566 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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] [2021-12-22 15:33:39,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-22 15:33:39,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 15:33:39,783 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:33:39,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:33:39,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1763632788, now seen corresponding path program 1 times [2021-12-22 15:33:39,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:33:39,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454962460] [2021-12-22 15:33:39,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:33:39,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:33:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:40,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:33:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:40,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:40,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:40,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:33:40,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:40,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:40,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:40,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:33:40,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:40,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:40,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:40,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:33:40,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:40,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:40,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:40,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:33:40,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:40,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:40,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:40,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-22 15:33:40,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:40,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 15:33:40,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:40,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-22 15:33:40,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:40,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-22 15:33:40,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:40,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-22 15:33:40,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:40,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-22 15:33:40,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:40,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 15:33:40,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:40,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:40,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:40,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-22 15:33:40,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:40,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-22 15:33:40,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:40,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-22 15:33:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:40,189 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2021-12-22 15:33:40,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:33:40,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454962460] [2021-12-22 15:33:40,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454962460] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 15:33:40,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599458791] [2021-12-22 15:33:40,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:33:40,190 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 15:33:40,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:33:40,191 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 15:33:40,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-22 15:33:40,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:40,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 1629 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-22 15:33:40,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 15:33:41,071 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 76 proven. 1 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2021-12-22 15:33:41,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 15:33:41,340 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2021-12-22 15:33:41,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599458791] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 15:33:41,341 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 15:33:41,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2021-12-22 15:33:41,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477306699] [2021-12-22 15:33:41,341 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 15:33:41,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-22 15:33:41,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:33:41,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-22 15:33:41,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:33:41,343 INFO L87 Difference]: Start difference. First operand 39342 states and 53723 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-22 15:33:45,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:33:45,092 INFO L93 Difference]: Finished difference Result 78848 states and 107706 transitions. [2021-12-22 15:33:45,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 15:33:45,092 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 152 [2021-12-22 15:33:45,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:33:45,221 INFO L225 Difference]: With dead ends: 78848 [2021-12-22 15:33:45,221 INFO L226 Difference]: Without dead ends: 39598 [2021-12-22 15:33:45,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:33:45,306 INFO L933 BasicCegarLoop]: 2397 mSDtfsCounter, 519 mSDsluCounter, 10501 mSDsCounter, 0 mSdLazyCounter, 3819 mSolverCounterSat, 481 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 12898 SdHoareTripleChecker+Invalid, 4300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 481 IncrementalHoareTripleChecker+Valid, 3819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-12-22 15:33:45,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [663 Valid, 12898 Invalid, 4300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [481 Valid, 3819 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-12-22 15:33:45,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39598 states.