./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.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 6081258d9228cc20a54c5db1ec40347e5dbacbb2bb40755a07881673d13b875b --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 14:15:27,949 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 14:15:27,951 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 14:15:27,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 14:15:27,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 14:15:27,980 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 14:15:27,981 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 14:15:27,984 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 14:15:27,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 14:15:27,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 14:15:27,988 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 14:15:27,989 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 14:15:27,990 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 14:15:27,993 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 14:15:27,994 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 14:15:27,997 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 14:15:28,003 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 14:15:28,004 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 14:15:28,005 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 14:15:28,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 14:15:28,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 14:15:28,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 14:15:28,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 14:15:28,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 14:15:28,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 14:15:28,024 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 14:15:28,027 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 14:15:28,028 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 14:15:28,028 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 14:15:28,029 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 14:15:28,029 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 14:15:28,030 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 14:15:28,030 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 14:15:28,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 14:15:28,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 14:15:28,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 14:15:28,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 14:15:28,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 14:15:28,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 14:15:28,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 14:15:28,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 14:15:28,035 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 14:15:28,053 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 14:15:28,053 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 14:15:28,054 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 14:15:28,054 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 14:15:28,054 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 14:15:28,055 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 14:15:28,055 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 14:15:28,055 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 14:15:28,056 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 14:15:28,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 14:15:28,056 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 14:15:28,057 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 14:15:28,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 14:15:28,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 14:15:28,057 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 14:15:28,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 14:15:28,057 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 14:15:28,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 14:15:28,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 14:15:28,058 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 14:15:28,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 14:15:28,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 14:15:28,058 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 14:15:28,058 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 14:15:28,059 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 14:15:28,059 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 14:15:28,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 14:15:28,059 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 14:15:28,059 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 14:15:28,059 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 14:15:28,059 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 14:15:28,060 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6081258d9228cc20a54c5db1ec40347e5dbacbb2bb40755a07881673d13b875b [2021-12-18 14:15:28,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 14:15:28,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 14:15:28,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 14:15:28,267 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 14:15:28,276 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 14:15:28,277 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i [2021-12-18 14:15:28,330 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3df3a125/8ca110ce00054fc0adc3af9dabd99eed/FLAG6809cd425 [2021-12-18 14:15:28,964 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 14:15:28,964 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i [2021-12-18 14:15:29,018 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3df3a125/8ca110ce00054fc0adc3af9dabd99eed/FLAG6809cd425 [2021-12-18 14:15:29,297 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3df3a125/8ca110ce00054fc0adc3af9dabd99eed [2021-12-18 14:15:29,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 14:15:29,300 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 14:15:29,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 14:15:29,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 14:15:29,314 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 14:15:29,314 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:15:29" (1/1) ... [2021-12-18 14:15:29,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b93dcf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:15:29, skipping insertion in model container [2021-12-18 14:15:29,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:15:29" (1/1) ... [2021-12-18 14:15:29,320 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 14:15:29,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 14:15:31,355 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386207,386220] [2021-12-18 14:15:31,358 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386376,386389] [2021-12-18 14:15:31,362 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386543,386556] [2021-12-18 14:15:31,362 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386711,386724] [2021-12-18 14:15:31,379 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 14:15:31,424 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 14:15:31,695 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386207,386220] [2021-12-18 14:15:31,695 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386376,386389] [2021-12-18 14:15:31,696 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386543,386556] [2021-12-18 14:15:31,696 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386711,386724] [2021-12-18 14:15:31,702 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 14:15:31,878 INFO L208 MainTranslator]: Completed translation [2021-12-18 14:15:31,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:15:31 WrapperNode [2021-12-18 14:15:31,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 14:15:31,880 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 14:15:31,880 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 14:15:31,880 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 14:15:31,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:15:31" (1/1) ... [2021-12-18 14:15:31,960 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:15:31" (1/1) ... [2021-12-18 14:15:32,128 INFO L137 Inliner]: procedures = 512, calls = 2538, calls flagged for inlining = 248, calls inlined = 216, statements flattened = 5394 [2021-12-18 14:15:32,129 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 14:15:32,130 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 14:15:32,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 14:15:32,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 14:15:32,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:15:31" (1/1) ... [2021-12-18 14:15:32,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:15:31" (1/1) ... [2021-12-18 14:15:32,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:15:31" (1/1) ... [2021-12-18 14:15:32,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:15:31" (1/1) ... [2021-12-18 14:15:32,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:15:31" (1/1) ... [2021-12-18 14:15:32,270 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:15:31" (1/1) ... [2021-12-18 14:15:32,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:15:31" (1/1) ... [2021-12-18 14:15:32,324 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 14:15:32,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 14:15:32,325 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 14:15:32,327 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 14:15:32,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:15:31" (1/1) ... [2021-12-18 14:15:32,333 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 14:15:32,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 14:15:32,350 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) [2021-12-18 14:15:32,365 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 [2021-12-18 14:15:32,377 INFO L130 BoogieDeclarations]: Found specification of procedure drain_rx [2021-12-18 14:15:32,378 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_rx [2021-12-18 14:15:32,378 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-12-18 14:15:32,378 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-12-18 14:15:32,378 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-12-18 14:15:32,378 INFO L130 BoogieDeclarations]: Found specification of procedure miiport_write [2021-12-18 14:15:32,378 INFO L138 BoogieDeclarations]: Found implementation of procedure miiport_write [2021-12-18 14:15:32,379 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-18 14:15:32,379 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-18 14:15:32,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 14:15:32,379 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 14:15:32,379 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-18 14:15:32,379 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-18 14:15:32,379 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_tx_done [2021-12-18 14:15:32,379 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_tx_done [2021-12-18 14:15:32,380 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-18 14:15:32,380 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-18 14:15:32,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 14:15:32,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 14:15:32,380 INFO L130 BoogieDeclarations]: Found specification of procedure reinit_rx [2021-12-18 14:15:32,380 INFO L138 BoogieDeclarations]: Found implementation of procedure reinit_rx [2021-12-18 14:15:32,380 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-18 14:15:32,380 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-18 14:15:32,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 14:15:32,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 14:15:32,381 INFO L130 BoogieDeclarations]: Found specification of procedure reinit_ring [2021-12-18 14:15:32,381 INFO L138 BoogieDeclarations]: Found implementation of procedure reinit_ring [2021-12-18 14:15:32,381 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-18 14:15:32,381 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-18 14:15:32,381 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-18 14:15:32,381 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-18 14:15:32,382 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-18 14:15:32,382 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-18 14:15:32,382 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-18 14:15:32,382 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-18 14:15:32,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2021-12-18 14:15:32,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2021-12-18 14:15:32,383 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-18 14:15:32,383 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-18 14:15:32,383 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-18 14:15:32,383 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-18 14:15:32,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-18 14:15:32,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-18 14:15:32,383 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-18 14:15:32,384 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-18 14:15:32,384 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-18 14:15:32,384 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-18 14:15:32,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 14:15:32,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 14:15:32,384 INFO L130 BoogieDeclarations]: Found specification of procedure __set_rx_mode [2021-12-18 14:15:32,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_rx_mode [2021-12-18 14:15:32,385 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-18 14:15:32,385 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-18 14:15:32,386 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-12-18 14:15:32,386 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-12-18 14:15:32,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 14:15:32,386 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-18 14:15:32,386 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-18 14:15:32,386 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2021-12-18 14:15:32,387 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2021-12-18 14:15:32,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-12-18 14:15:32,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-12-18 14:15:32,387 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_read [2021-12-18 14:15:32,387 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_read [2021-12-18 14:15:32,387 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-18 14:15:32,387 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-18 14:15:32,388 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_stop_rxtx [2021-12-18 14:15:32,388 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_stop_rxtx [2021-12-18 14:15:32,388 INFO L130 BoogieDeclarations]: Found specification of procedure ns_tx_timeout [2021-12-18 14:15:32,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_tx_timeout [2021-12-18 14:15:32,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 14:15:32,388 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-18 14:15:32,389 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-18 14:15:32,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-12-18 14:15:32,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-12-18 14:15:32,389 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_reset [2021-12-18 14:15:32,389 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_reset [2021-12-18 14:15:32,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 14:15:32,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-18 14:15:32,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-18 14:15:32,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 14:15:32,390 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-12-18 14:15:32,390 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-12-18 14:15:32,390 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-18 14:15:32,390 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-18 14:15:32,391 INFO L130 BoogieDeclarations]: Found specification of procedure move_int_phy [2021-12-18 14:15:32,391 INFO L138 BoogieDeclarations]: Found implementation of procedure move_int_phy [2021-12-18 14:15:32,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 14:15:32,391 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 14:15:32,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-18 14:15:32,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-18 14:15:32,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-18 14:15:32,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-18 14:15:32,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-18 14:15:32,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-18 14:15:32,392 INFO L130 BoogieDeclarations]: Found specification of procedure enable_wol_mode [2021-12-18 14:15:32,392 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_wol_mode [2021-12-18 14:15:32,392 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_resume [2021-12-18 14:15:32,393 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_resume [2021-12-18 14:15:32,393 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-12-18 14:15:32,393 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-12-18 14:15:32,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-18 14:15:32,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-18 14:15:32,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 14:15:32,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-18 14:15:32,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-18 14:15:32,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-18 14:15:32,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-18 14:15:32,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-12-18 14:15:32,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-12-18 14:15:32,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 14:15:32,395 INFO L130 BoogieDeclarations]: Found specification of procedure mii_getbit [2021-12-18 14:15:32,403 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_getbit [2021-12-18 14:15:32,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-18 14:15:32,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-18 14:15:32,403 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-18 14:15:32,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-18 14:15:32,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 14:15:32,403 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 14:15:32,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 14:15:32,403 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-18 14:15:32,403 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-18 14:15:32,404 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_poll_controller [2021-12-18 14:15:32,404 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_poll_controller [2021-12-18 14:15:32,404 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-18 14:15:32,404 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-18 14:15:32,404 INFO L130 BoogieDeclarations]: Found specification of procedure check_link [2021-12-18 14:15:32,404 INFO L138 BoogieDeclarations]: Found implementation of procedure check_link [2021-12-18 14:15:32,404 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-12-18 14:15:32,404 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-12-18 14:15:32,404 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-18 14:15:32,404 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-18 14:15:32,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-18 14:15:32,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-18 14:15:32,404 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-18 14:15:32,404 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-18 14:15:32,404 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-18 14:15:32,404 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-18 14:15:32,405 INFO L130 BoogieDeclarations]: Found specification of procedure init_phy_fixup [2021-12-18 14:15:32,405 INFO L138 BoogieDeclarations]: Found implementation of procedure init_phy_fixup [2021-12-18 14:15:32,405 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-12-18 14:15:32,405 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-12-18 14:15:32,405 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-12-18 14:15:32,405 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-12-18 14:15:32,405 INFO L130 BoogieDeclarations]: Found specification of procedure mii_nway_result [2021-12-18 14:15:32,405 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_nway_result [2021-12-18 14:15:32,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 14:15:32,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 14:15:32,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 14:15:32,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 14:15:32,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 14:15:32,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 14:15:32,406 INFO L130 BoogieDeclarations]: Found specification of procedure switch_port_external [2021-12-18 14:15:32,406 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_port_external [2021-12-18 14:15:32,407 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2021-12-18 14:15:32,407 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2021-12-18 14:15:32,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 14:15:32,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 14:15:32,407 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-18 14:15:32,407 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-18 14:15:32,407 INFO L130 BoogieDeclarations]: Found specification of procedure get_eeprom_len [2021-12-18 14:15:32,407 INFO L138 BoogieDeclarations]: Found implementation of procedure get_eeprom_len [2021-12-18 14:15:32,408 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-12-18 14:15:32,408 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-12-18 14:15:32,408 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2021-12-18 14:15:32,408 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2021-12-18 14:15:32,408 INFO L130 BoogieDeclarations]: Found specification of procedure get_regs_len [2021-12-18 14:15:32,408 INFO L138 BoogieDeclarations]: Found implementation of procedure get_regs_len [2021-12-18 14:15:32,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-18 14:15:32,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-18 14:15:32,409 INFO L130 BoogieDeclarations]: Found specification of procedure nway_reset [2021-12-18 14:15:32,409 INFO L138 BoogieDeclarations]: Found implementation of procedure nway_reset [2021-12-18 14:15:32,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_netdev_private [2021-12-18 14:15:32,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_netdev_private [2021-12-18 14:15:32,409 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-18 14:15:32,409 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-18 14:15:32,409 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-12-18 14:15:32,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-12-18 14:15:32,409 INFO L130 BoogieDeclarations]: Found specification of procedure init_registers [2021-12-18 14:15:32,410 INFO L138 BoogieDeclarations]: Found implementation of procedure init_registers [2021-12-18 14:15:32,410 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-18 14:15:32,410 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-18 14:15:32,410 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-18 14:15:32,410 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-18 14:15:32,410 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2021-12-18 14:15:32,410 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2021-12-18 14:15:32,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 14:15:32,411 INFO L130 BoogieDeclarations]: Found specification of procedure switch_port_internal [2021-12-18 14:15:32,411 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_port_internal [2021-12-18 14:15:32,411 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-18 14:15:32,411 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-18 14:15:32,411 INFO L130 BoogieDeclarations]: Found specification of procedure dump_ring [2021-12-18 14:15:32,411 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_ring [2021-12-18 14:15:32,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 14:15:32,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 14:15:32,412 INFO L130 BoogieDeclarations]: Found specification of procedure intr_handler [2021-12-18 14:15:32,412 INFO L138 BoogieDeclarations]: Found implementation of procedure intr_handler [2021-12-18 14:15:32,412 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-18 14:15:32,412 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-18 14:15:32,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_netdev_private [2021-12-18 14:15:32,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_netdev_private [2021-12-18 14:15:32,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_68 [2021-12-18 14:15:32,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_68 [2021-12-18 14:15:32,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-18 14:15:32,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-18 14:15:32,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-18 14:15:32,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-18 14:15:32,413 INFO L130 BoogieDeclarations]: Found specification of procedure __get_stats [2021-12-18 14:15:32,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_stats [2021-12-18 14:15:32,413 INFO L130 BoogieDeclarations]: Found specification of procedure set_bufsize [2021-12-18 14:15:32,413 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bufsize [2021-12-18 14:15:32,413 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-18 14:15:32,414 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-18 14:15:32,414 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2021-12-18 14:15:32,414 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2021-12-18 14:15:32,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_84 [2021-12-18 14:15:32,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_84 [2021-12-18 14:15:32,414 INFO L130 BoogieDeclarations]: Found specification of procedure drain_ring [2021-12-18 14:15:32,414 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_ring [2021-12-18 14:15:32,414 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-18 14:15:32,415 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-18 14:15:32,415 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-18 14:15:32,415 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-18 14:15:32,415 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-18 14:15:32,415 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-18 14:15:32,415 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-18 14:15:32,415 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-18 14:15:32,415 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_remove1 [2021-12-18 14:15:32,416 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_remove1 [2021-12-18 14:15:32,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_natsemi_exit_mod_15_2 [2021-12-18 14:15:32,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_natsemi_exit_mod_15_2 [2021-12-18 14:15:32,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 14:15:32,416 INFO L130 BoogieDeclarations]: Found specification of procedure init_ring [2021-12-18 14:15:32,416 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ring [2021-12-18 14:15:32,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 14:15:32,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 14:15:32,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_85 [2021-12-18 14:15:32,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_85 [2021-12-18 14:15:32,417 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_irq_disable [2021-12-18 14:15:32,417 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_irq_disable [2021-12-18 14:15:32,417 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2021-12-18 14:15:32,419 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2021-12-18 14:15:32,419 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-18 14:15:32,419 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-18 14:15:32,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_69 [2021-12-18 14:15:32,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_69 [2021-12-18 14:15:32,420 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-18 14:15:32,420 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-18 14:15:32,420 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-12-18 14:15:32,421 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-12-18 14:15:32,425 INFO L130 BoogieDeclarations]: Found specification of procedure ns_ioaddr [2021-12-18 14:15:32,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_ioaddr [2021-12-18 14:15:32,426 INFO L130 BoogieDeclarations]: Found specification of procedure mii_send_bits [2021-12-18 14:15:32,426 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_send_bits [2021-12-18 14:15:32,427 INFO L130 BoogieDeclarations]: Found specification of procedure refill_rx [2021-12-18 14:15:32,427 INFO L138 BoogieDeclarations]: Found implementation of procedure refill_rx [2021-12-18 14:15:32,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-18 14:15:32,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-18 14:15:32,427 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2021-12-18 14:15:32,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2021-12-18 14:15:32,427 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2021-12-18 14:15:32,427 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2021-12-18 14:15:32,427 INFO L130 BoogieDeclarations]: Found specification of procedure drain_tx [2021-12-18 14:15:32,428 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_tx [2021-12-18 14:15:32,428 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_irq_enable [2021-12-18 14:15:32,428 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_irq_enable [2021-12-18 14:15:32,428 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-18 14:15:32,428 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-18 14:15:32,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 14:15:32,428 INFO L130 BoogieDeclarations]: Found specification of procedure miiport_read [2021-12-18 14:15:32,428 INFO L138 BoogieDeclarations]: Found implementation of procedure miiport_read [2021-12-18 14:15:32,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-18 14:15:32,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-18 14:15:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-12-18 14:15:32,429 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-12-18 14:15:33,192 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 14:15:33,194 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 14:15:33,490 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 14:15:35,412 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-18 14:15:35,462 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 14:15:35,475 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 14:15:35,475 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-18 14:15:35,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:15:35 BoogieIcfgContainer [2021-12-18 14:15:35,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 14:15:35,479 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 14:15:35,479 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 14:15:35,481 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 14:15:35,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 02:15:29" (1/3) ... [2021-12-18 14:15:35,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54ac79fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:15:35, skipping insertion in model container [2021-12-18 14:15:35,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:15:31" (2/3) ... [2021-12-18 14:15:35,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54ac79fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:15:35, skipping insertion in model container [2021-12-18 14:15:35,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:15:35" (3/3) ... [2021-12-18 14:15:35,484 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i [2021-12-18 14:15:35,487 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 14:15:35,487 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-18 14:15:35,524 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 14:15:35,529 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 [2021-12-18 14:15:35,529 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-18 14:15:35,638 INFO L276 IsEmpty]: Start isEmpty. Operand has 2481 states, 1601 states have (on average 1.2692067457838851) internal successors, (2032), 1638 states have internal predecessors, (2032), 749 states have call successors, (749), 129 states have call predecessors, (749), 128 states have return successors, (743), 734 states have call predecessors, (743), 743 states have call successors, (743) [2021-12-18 14:15:35,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-12-18 14:15:35,648 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:15:35,649 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:15:35,649 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)] === [2021-12-18 14:15:35,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:15:35,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1573781145, now seen corresponding path program 1 times [2021-12-18 14:15:35,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:15:35,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288134785] [2021-12-18 14:15:35,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:15:35,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:15:35,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:15:36,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:36,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:15:36,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:36,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:15:36,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:36,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:15:36,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:36,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:15:36,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:15:36,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:36,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:15:36,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:36,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:15:36,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:36,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:15:36,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:36,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:15:36,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:36,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:15:36,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:15:36,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:36,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:15:36,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:36,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 14:15:36,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:36,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 14:15:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-18 14:15:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-18 14:15:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:36,466 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-12-18 14:15:36,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:15:36,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288134785] [2021-12-18 14:15:36,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288134785] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:15:36,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:15:36,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 14:15:36,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103080627] [2021-12-18 14:15:36,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:15:36,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 14:15:36,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:15:36,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 14:15:36,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 14:15:36,509 INFO L87 Difference]: Start difference. First operand has 2481 states, 1601 states have (on average 1.2692067457838851) internal successors, (2032), 1638 states have internal predecessors, (2032), 749 states have call successors, (749), 129 states have call predecessors, (749), 128 states have return successors, (743), 734 states have call predecessors, (743), 743 states have call successors, (743) 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, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-18 14:15:41,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:15:41,306 INFO L93 Difference]: Finished difference Result 7377 states and 10713 transitions. [2021-12-18 14:15:41,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 14:15:41,308 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, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 193 [2021-12-18 14:15:41,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:15:41,351 INFO L225 Difference]: With dead ends: 7377 [2021-12-18 14:15:41,351 INFO L226 Difference]: Without dead ends: 4921 [2021-12-18 14:15:41,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 14:15:41,371 INFO L933 BasicCegarLoop]: 3569 mSDtfsCounter, 4291 mSDsluCounter, 3419 mSDsCounter, 0 mSdLazyCounter, 2681 mSolverCounterSat, 2449 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4977 SdHoareTripleChecker+Valid, 6988 SdHoareTripleChecker+Invalid, 5130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2449 IncrementalHoareTripleChecker+Valid, 2681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-12-18 14:15:41,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4977 Valid, 6988 Invalid, 5130 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2449 Valid, 2681 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2021-12-18 14:15:41,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4921 states. [2021-12-18 14:15:41,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4921 to 4819. [2021-12-18 14:15:41,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4819 states, 3125 states have (on average 1.26464) internal successors, (3952), 3198 states have internal predecessors, (3952), 1439 states have call successors, (1439), 253 states have call predecessors, (1439), 252 states have return successors, (1435), 1417 states have call predecessors, (1435), 1435 states have call successors, (1435) [2021-12-18 14:15:41,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4819 states to 4819 states and 6826 transitions. [2021-12-18 14:15:41,709 INFO L78 Accepts]: Start accepts. Automaton has 4819 states and 6826 transitions. Word has length 193 [2021-12-18 14:15:41,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:15:41,717 INFO L470 AbstractCegarLoop]: Abstraction has 4819 states and 6826 transitions. [2021-12-18 14:15:41,718 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, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-18 14:15:41,718 INFO L276 IsEmpty]: Start isEmpty. Operand 4819 states and 6826 transitions. [2021-12-18 14:15:41,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-12-18 14:15:41,728 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:15:41,729 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:15:41,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 14:15:41,729 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)] === [2021-12-18 14:15:41,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:15:41,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1629799473, now seen corresponding path program 1 times [2021-12-18 14:15:41,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:15:41,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261881600] [2021-12-18 14:15:41,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:15:41,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:15:41,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:41,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:15:41,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:41,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:41,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:41,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:15:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:41,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:41,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:41,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:15:41,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:41,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:41,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:41,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:15:41,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:41,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:41,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:41,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:15:41,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:41,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:41,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:41,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:15:41,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:41,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:41,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:41,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:15:41,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:41,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:41,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:41,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:15:41,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:41,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:41,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:41,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:15:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:41,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:41,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:41,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:15:41,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:41,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:41,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:41,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:15:41,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:41,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:41,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:42,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:15:42,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:42,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:42,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:15:42,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:42,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:42,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:42,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 14:15:42,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:42,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:42,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 14:15:42,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:42,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:42,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-18 14:15:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:42,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 14:15:42,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:42,076 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-12-18 14:15:42,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:15:42,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261881600] [2021-12-18 14:15:42,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261881600] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:15:42,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:15:42,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 14:15:42,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515697267] [2021-12-18 14:15:42,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:15:42,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 14:15:42,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:15:42,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 14:15:42,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 14:15:42,080 INFO L87 Difference]: Start difference. First operand 4819 states and 6826 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-18 14:15:46,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:15:46,403 INFO L93 Difference]: Finished difference Result 13465 states and 19065 transitions. [2021-12-18 14:15:46,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 14:15:46,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 202 [2021-12-18 14:15:46,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:15:46,442 INFO L225 Difference]: With dead ends: 13465 [2021-12-18 14:15:46,442 INFO L226 Difference]: Without dead ends: 8681 [2021-12-18 14:15:46,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 14:15:46,459 INFO L933 BasicCegarLoop]: 3437 mSDtfsCounter, 3537 mSDsluCounter, 3369 mSDsCounter, 0 mSdLazyCounter, 2598 mSolverCounterSat, 2343 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4096 SdHoareTripleChecker+Valid, 6806 SdHoareTripleChecker+Invalid, 4941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2343 IncrementalHoareTripleChecker+Valid, 2598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-12-18 14:15:46,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4096 Valid, 6806 Invalid, 4941 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2343 Valid, 2598 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-12-18 14:15:46,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8681 states. [2021-12-18 14:15:46,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8681 to 8478. [2021-12-18 14:15:46,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8478 states, 5420 states have (on average 1.2562730627306273) internal successors, (6809), 5556 states have internal predecessors, (6809), 2568 states have call successors, (2568), 486 states have call predecessors, (2568), 487 states have return successors, (2572), 2519 states have call predecessors, (2572), 2564 states have call successors, (2572) [2021-12-18 14:15:46,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8478 states to 8478 states and 11949 transitions. [2021-12-18 14:15:46,752 INFO L78 Accepts]: Start accepts. Automaton has 8478 states and 11949 transitions. Word has length 202 [2021-12-18 14:15:46,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:15:46,753 INFO L470 AbstractCegarLoop]: Abstraction has 8478 states and 11949 transitions. [2021-12-18 14:15:46,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-18 14:15:46,753 INFO L276 IsEmpty]: Start isEmpty. Operand 8478 states and 11949 transitions. [2021-12-18 14:15:46,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-12-18 14:15:46,756 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:15:46,757 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:15:46,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 14:15:46,757 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)] === [2021-12-18 14:15:46,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:15:46,757 INFO L85 PathProgramCache]: Analyzing trace with hash -90392666, now seen corresponding path program 1 times [2021-12-18 14:15:46,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:15:46,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459666241] [2021-12-18 14:15:46,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:15:46,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:15:46,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:46,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:15:46,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:46,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:46,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:46,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:15:46,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:46,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:46,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:46,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:15:46,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:46,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:46,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:15:46,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:46,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:46,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:46,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:15:46,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:46,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:46,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:46,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:15:46,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:46,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:46,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:46,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:15:46,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:46,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:46,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:46,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:15:46,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:46,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:46,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:46,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:15:46,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:46,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:46,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:47,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:15:47,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:47,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:47,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:47,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:15:47,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:47,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:47,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:15:47,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:47,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:47,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:15:47,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:47,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:47,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 14:15:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:47,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:47,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:47,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 14:15:47,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:47,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:47,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-18 14:15:47,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:47,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 14:15:47,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:47,103 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-12-18 14:15:47,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:15:47,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459666241] [2021-12-18 14:15:47,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459666241] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:15:47,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:15:47,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 14:15:47,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137775800] [2021-12-18 14:15:47,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:15:47,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 14:15:47,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:15:47,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 14:15:47,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-18 14:15:47,106 INFO L87 Difference]: Start difference. First operand 8478 states and 11949 transitions. Second operand has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-18 14:15:55,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:15:55,030 INFO L93 Difference]: Finished difference Result 19495 states and 27394 transitions. [2021-12-18 14:15:55,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 14:15:55,030 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 204 [2021-12-18 14:15:55,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:15:55,092 INFO L225 Difference]: With dead ends: 19495 [2021-12-18 14:15:55,093 INFO L226 Difference]: Without dead ends: 11052 [2021-12-18 14:15:55,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-12-18 14:15:55,128 INFO L933 BasicCegarLoop]: 4753 mSDtfsCounter, 8847 mSDsluCounter, 4591 mSDsCounter, 0 mSdLazyCounter, 7775 mSolverCounterSat, 4842 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9975 SdHoareTripleChecker+Valid, 9344 SdHoareTripleChecker+Invalid, 12617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4842 IncrementalHoareTripleChecker+Valid, 7775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2021-12-18 14:15:55,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9975 Valid, 9344 Invalid, 12617 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4842 Valid, 7775 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2021-12-18 14:15:55,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11052 states. [2021-12-18 14:15:55,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11052 to 10739. [2021-12-18 14:15:55,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10739 states, 6904 states have (on average 1.2531865585168018) internal successors, (8652), 7069 states have internal predecessors, (8652), 3158 states have call successors, (3158), 680 states have call predecessors, (3158), 674 states have return successors, (3158), 3091 states have call predecessors, (3158), 3154 states have call successors, (3158) [2021-12-18 14:15:55,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10739 states to 10739 states and 14968 transitions. [2021-12-18 14:15:55,529 INFO L78 Accepts]: Start accepts. Automaton has 10739 states and 14968 transitions. Word has length 204 [2021-12-18 14:15:55,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:15:55,530 INFO L470 AbstractCegarLoop]: Abstraction has 10739 states and 14968 transitions. [2021-12-18 14:15:55,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-18 14:15:55,533 INFO L276 IsEmpty]: Start isEmpty. Operand 10739 states and 14968 transitions. [2021-12-18 14:15:55,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-12-18 14:15:55,537 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:15:55,537 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:15:55,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 14:15:55,538 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)] === [2021-12-18 14:15:55,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:15:55,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1979846642, now seen corresponding path program 1 times [2021-12-18 14:15:55,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:15:55,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757135660] [2021-12-18 14:15:55,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:15:55,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:15:55,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:15:55,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:15:55,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:55,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:15:55,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:15:55,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:55,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:15:55,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:55,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:15:55,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:55,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:15:55,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:55,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:15:55,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:55,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:15:55,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:15:55,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:55,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:15:55,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:55,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:15:55,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:55,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:15:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:55,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 14:15:55,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:55,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 14:15:55,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:55,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-18 14:15:55,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-18 14:15:55,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-18 14:15:55,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-18 14:15:55,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:15:55,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:15:55,847 INFO L134 CoverageAnalysis]: Checked inductivity of 993 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 993 trivial. 0 not checked. [2021-12-18 14:15:55,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:15:55,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757135660] [2021-12-18 14:15:55,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757135660] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:15:55,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:15:55,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 14:15:55,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900730628] [2021-12-18 14:15:55,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:15:55,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 14:15:55,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:15:55,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 14:15:55,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 14:15:55,849 INFO L87 Difference]: Start difference. First operand 10739 states and 14968 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-18 14:15:59,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:15:59,824 INFO L93 Difference]: Finished difference Result 29605 states and 41301 transitions. [2021-12-18 14:15:59,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 14:15:59,825 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 213 [2021-12-18 14:15:59,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:15:59,910 INFO L225 Difference]: With dead ends: 29605 [2021-12-18 14:15:59,910 INFO L226 Difference]: Without dead ends: 18901 [2021-12-18 14:15:59,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 14:15:59,950 INFO L933 BasicCegarLoop]: 3527 mSDtfsCounter, 4190 mSDsluCounter, 3381 mSDsCounter, 0 mSdLazyCounter, 2480 mSolverCounterSat, 2428 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4803 SdHoareTripleChecker+Valid, 6908 SdHoareTripleChecker+Invalid, 4908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2428 IncrementalHoareTripleChecker+Valid, 2480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-12-18 14:15:59,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4803 Valid, 6908 Invalid, 4908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2428 Valid, 2480 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-12-18 14:15:59,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18901 states. [2021-12-18 14:16:00,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18901 to 18453. [2021-12-18 14:16:00,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18453 states, 12006 states have (on average 1.2569548559053807) internal successors, (15091), 12279 states have internal predecessors, (15091), 5292 states have call successors, (5292), 1176 states have call predecessors, (5292), 1152 states have return successors, (5304), 5162 states have call predecessors, (5304), 5288 states have call successors, (5304) [2021-12-18 14:16:00,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18453 states to 18453 states and 25687 transitions. [2021-12-18 14:16:00,601 INFO L78 Accepts]: Start accepts. Automaton has 18453 states and 25687 transitions. Word has length 213 [2021-12-18 14:16:00,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:16:00,602 INFO L470 AbstractCegarLoop]: Abstraction has 18453 states and 25687 transitions. [2021-12-18 14:16:00,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-18 14:16:00,602 INFO L276 IsEmpty]: Start isEmpty. Operand 18453 states and 25687 transitions. [2021-12-18 14:16:00,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-12-18 14:16:00,605 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:16:00,605 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:16:00,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 14:16:00,606 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)] === [2021-12-18 14:16:00,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:16:00,606 INFO L85 PathProgramCache]: Analyzing trace with hash -2057147560, now seen corresponding path program 1 times [2021-12-18 14:16:00,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:16:00,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525989225] [2021-12-18 14:16:00,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:16:00,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:16:00,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:16:00,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:00,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:16:00,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:00,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:16:00,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:00,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:16:00,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:00,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:16:00,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:16:00,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:00,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:16:00,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:00,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:16:00,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:00,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:16:00,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:00,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:16:00,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:00,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:16:00,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:00,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:16:00,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:00,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:16:00,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:00,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 14:16:00,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:00,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 14:16:00,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:00,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-18 14:16:00,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-18 14:16:00,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:00,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:16:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:16:00,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-18 14:16:00,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:00,879 INFO L134 CoverageAnalysis]: Checked inductivity of 994 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 994 trivial. 0 not checked. [2021-12-18 14:16:00,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:16:00,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525989225] [2021-12-18 14:16:00,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525989225] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:16:00,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:16:00,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 14:16:00,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341618901] [2021-12-18 14:16:00,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:16:00,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 14:16:00,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:16:00,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 14:16:00,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 14:16:00,881 INFO L87 Difference]: Start difference. First operand 18453 states and 25687 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-18 14:16:05,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:16:05,430 INFO L93 Difference]: Finished difference Result 55152 states and 76902 transitions. [2021-12-18 14:16:05,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 14:16:05,430 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 221 [2021-12-18 14:16:05,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:16:05,599 INFO L225 Difference]: With dead ends: 55152 [2021-12-18 14:16:05,599 INFO L226 Difference]: Without dead ends: 36734 [2021-12-18 14:16:05,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 14:16:05,664 INFO L933 BasicCegarLoop]: 3634 mSDtfsCounter, 4259 mSDsluCounter, 3471 mSDsCounter, 0 mSdLazyCounter, 2689 mSolverCounterSat, 2464 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4944 SdHoareTripleChecker+Valid, 7105 SdHoareTripleChecker+Invalid, 5153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2464 IncrementalHoareTripleChecker+Valid, 2689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-12-18 14:16:05,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4944 Valid, 7105 Invalid, 5153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2464 Valid, 2689 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-12-18 14:16:05,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36734 states. [2021-12-18 14:16:06,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36734 to 35851. [2021-12-18 14:16:06,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35851 states, 23284 states have (on average 1.2548531180209586) internal successors, (29218), 23852 states have internal predecessors, (29218), 10313 states have call successors, (10313), 2298 states have call predecessors, (10313), 2251 states have return successors, (10341), 10030 states have call predecessors, (10341), 10309 states have call successors, (10341) [2021-12-18 14:16:06,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35851 states to 35851 states and 49872 transitions. [2021-12-18 14:16:06,976 INFO L78 Accepts]: Start accepts. Automaton has 35851 states and 49872 transitions. Word has length 221 [2021-12-18 14:16:06,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:16:06,981 INFO L470 AbstractCegarLoop]: Abstraction has 35851 states and 49872 transitions. [2021-12-18 14:16:06,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-18 14:16:06,981 INFO L276 IsEmpty]: Start isEmpty. Operand 35851 states and 49872 transitions. [2021-12-18 14:16:06,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2021-12-18 14:16:06,984 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:16:06,984 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 15, 15, 15, 15, 15, 15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:16:06,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 14:16:06,984 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 14:16:06,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:16:06,985 INFO L85 PathProgramCache]: Analyzing trace with hash -875737055, now seen corresponding path program 1 times [2021-12-18 14:16:06,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:16:06,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140219839] [2021-12-18 14:16:06,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:16:06,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:16:07,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:16:07,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:07,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:16:07,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:07,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:16:07,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:07,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:16:07,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:16:07,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:07,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:16:07,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:07,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:16:07,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:07,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:16:07,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:07,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:16:07,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:16:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:07,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:16:07,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:07,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:16:07,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:16:07,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:07,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 14:16:07,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:07,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 14:16:07,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-18 14:16:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-18 14:16:07,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 14:16:07,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 14:16:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-18 14:16:07,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:07,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 14:16:07,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-18 14:16:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-18 14:16:07,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:07,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2021-12-18 14:16:07,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:16:07,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140219839] [2021-12-18 14:16:07,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140219839] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:16:07,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:16:07,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 14:16:07,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464798789] [2021-12-18 14:16:07,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:16:07,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 14:16:07,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:16:07,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 14:16:07,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 14:16:07,273 INFO L87 Difference]: Start difference. First operand 35851 states and 49872 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-18 14:16:12,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:16:12,407 INFO L93 Difference]: Finished difference Result 107508 states and 149858 transitions. [2021-12-18 14:16:12,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 14:16:12,407 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 249 [2021-12-18 14:16:12,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:16:12,748 INFO L225 Difference]: With dead ends: 107508 [2021-12-18 14:16:12,748 INFO L226 Difference]: Without dead ends: 71835 [2021-12-18 14:16:13,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 14:16:13,087 INFO L933 BasicCegarLoop]: 4222 mSDtfsCounter, 4062 mSDsluCounter, 3725 mSDsCounter, 0 mSdLazyCounter, 2675 mSolverCounterSat, 2257 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4741 SdHoareTripleChecker+Valid, 7947 SdHoareTripleChecker+Invalid, 4932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2257 IncrementalHoareTripleChecker+Valid, 2675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-12-18 14:16:13,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4741 Valid, 7947 Invalid, 4932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2257 Valid, 2675 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-12-18 14:16:13,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71835 states. [2021-12-18 14:16:15,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71835 to 70163. [2021-12-18 14:16:15,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70163 states, 45606 states have (on average 1.2545279129939042) internal successors, (57214), 46628 states have internal predecessors, (57214), 20143 states have call successors, (20143), 4488 states have call predecessors, (20143), 4411 states have return successors, (20203), 19706 states have call predecessors, (20203), 20139 states have call successors, (20203) [2021-12-18 14:16:15,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70163 states to 70163 states and 97560 transitions. [2021-12-18 14:16:15,672 INFO L78 Accepts]: Start accepts. Automaton has 70163 states and 97560 transitions. Word has length 249 [2021-12-18 14:16:15,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:16:15,673 INFO L470 AbstractCegarLoop]: Abstraction has 70163 states and 97560 transitions. [2021-12-18 14:16:15,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-18 14:16:15,673 INFO L276 IsEmpty]: Start isEmpty. Operand 70163 states and 97560 transitions. [2021-12-18 14:16:15,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2021-12-18 14:16:15,676 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:16:15,677 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 15, 15, 15, 15, 15, 15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:16:15,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 14:16:15,677 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)] === [2021-12-18 14:16:15,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:16:15,677 INFO L85 PathProgramCache]: Analyzing trace with hash -735188445, now seen corresponding path program 1 times [2021-12-18 14:16:15,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:16:15,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076803744] [2021-12-18 14:16:15,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:16:15,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:16:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:16:16,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:16,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:16:16,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:16,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:16:16,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:16,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:16:16,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:16,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:16:16,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:16,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:16:16,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:16,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:16:16,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:16,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:16:16,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:16:16,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:16,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:16:16,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:16,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:16:16,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:16,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:16:16,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:16,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:16:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:16,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 14:16:16,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:16,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 14:16:16,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:16,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-18 14:16:16,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-18 14:16:16,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 14:16:16,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 14:16:16,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-18 14:16:16,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:16,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 14:16:16,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-18 14:16:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-18 14:16:16,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:16,372 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1177 trivial. 0 not checked. [2021-12-18 14:16:16,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:16:16,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076803744] [2021-12-18 14:16:16,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076803744] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:16:16,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:16:16,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 14:16:16,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651764370] [2021-12-18 14:16:16,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:16:16,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 14:16:16,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:16:16,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 14:16:16,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 14:16:16,374 INFO L87 Difference]: Start difference. First operand 70163 states and 97560 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-18 14:16:20,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:16:20,594 INFO L93 Difference]: Finished difference Result 71837 states and 100092 transitions. [2021-12-18 14:16:20,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 14:16:20,594 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 249 [2021-12-18 14:16:20,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:16:20,957 INFO L225 Difference]: With dead ends: 71837 [2021-12-18 14:16:20,958 INFO L226 Difference]: Without dead ends: 71835 [2021-12-18 14:16:21,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 14:16:21,003 INFO L933 BasicCegarLoop]: 3154 mSDtfsCounter, 3412 mSDsluCounter, 5750 mSDsCounter, 0 mSdLazyCounter, 3136 mSolverCounterSat, 1759 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3773 SdHoareTripleChecker+Valid, 8904 SdHoareTripleChecker+Invalid, 4895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1759 IncrementalHoareTripleChecker+Valid, 3136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-12-18 14:16:21,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3773 Valid, 8904 Invalid, 4895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1759 Valid, 3136 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-12-18 14:16:21,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71835 states. [2021-12-18 14:16:23,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71835 to 70167. [2021-12-18 14:16:23,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70167 states, 45609 states have (on average 1.2545111710408035) internal successors, (57217), 46631 states have internal predecessors, (57217), 20143 states have call successors, (20143), 4489 states have call predecessors, (20143), 4412 states have return successors, (20203), 19706 states have call predecessors, (20203), 20139 states have call successors, (20203) [2021-12-18 14:16:23,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70167 states to 70167 states and 97563 transitions. [2021-12-18 14:16:23,563 INFO L78 Accepts]: Start accepts. Automaton has 70167 states and 97563 transitions. Word has length 249 [2021-12-18 14:16:23,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:16:23,564 INFO L470 AbstractCegarLoop]: Abstraction has 70167 states and 97563 transitions. [2021-12-18 14:16:23,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-18 14:16:23,564 INFO L276 IsEmpty]: Start isEmpty. Operand 70167 states and 97563 transitions. [2021-12-18 14:16:23,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-12-18 14:16:23,568 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:16:23,568 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 15, 15, 15, 15, 15, 15, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:16:23,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 14:16:23,568 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)] === [2021-12-18 14:16:23,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:16:23,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1552181099, now seen corresponding path program 1 times [2021-12-18 14:16:23,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:16:23,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455849174] [2021-12-18 14:16:23,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:16:23,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:16:23,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:16:23,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:23,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:16:23,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:23,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:16:23,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:23,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:16:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:23,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:16:23,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:23,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:16:23,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:23,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:16:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:16:23,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:16:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:23,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:16:23,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:23,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:16:23,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:23,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:16:23,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:23,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:16:23,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 14:16:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:23,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 14:16:23,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:23,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-18 14:16:23,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-18 14:16:23,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 14:16:23,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 14:16:23,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-18 14:16:23,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 14:16:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-18 14:16:23,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-18 14:16:23,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 14:16:23,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:23,959 INFO L134 CoverageAnalysis]: Checked inductivity of 1179 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1177 trivial. 0 not checked. [2021-12-18 14:16:23,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:16:23,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455849174] [2021-12-18 14:16:23,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455849174] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:16:23,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:16:23,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 14:16:23,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535682144] [2021-12-18 14:16:23,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:16:23,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 14:16:23,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:16:23,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 14:16:23,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 14:16:23,962 INFO L87 Difference]: Start difference. First operand 70167 states and 97563 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-18 14:16:28,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:16:28,415 INFO L93 Difference]: Finished difference Result 71841 states and 100095 transitions. [2021-12-18 14:16:28,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 14:16:28,415 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 254 [2021-12-18 14:16:28,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:16:28,684 INFO L225 Difference]: With dead ends: 71841 [2021-12-18 14:16:28,684 INFO L226 Difference]: Without dead ends: 71839 [2021-12-18 14:16:28,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 14:16:28,718 INFO L933 BasicCegarLoop]: 3157 mSDtfsCounter, 3404 mSDsluCounter, 5750 mSDsCounter, 0 mSdLazyCounter, 3136 mSolverCounterSat, 1758 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3765 SdHoareTripleChecker+Valid, 8907 SdHoareTripleChecker+Invalid, 4894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1758 IncrementalHoareTripleChecker+Valid, 3136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-12-18 14:16:28,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3765 Valid, 8907 Invalid, 4894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1758 Valid, 3136 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-12-18 14:16:28,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71839 states. [2021-12-18 14:16:30,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71839 to 70171. [2021-12-18 14:16:30,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70171 states, 45612 states have (on average 1.2544944312900115) internal successors, (57220), 46634 states have internal predecessors, (57220), 20143 states have call successors, (20143), 4490 states have call predecessors, (20143), 4413 states have return successors, (20203), 19706 states have call predecessors, (20203), 20139 states have call successors, (20203) [2021-12-18 14:16:31,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70171 states to 70171 states and 97566 transitions. [2021-12-18 14:16:31,176 INFO L78 Accepts]: Start accepts. Automaton has 70171 states and 97566 transitions. Word has length 254 [2021-12-18 14:16:31,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:16:31,177 INFO L470 AbstractCegarLoop]: Abstraction has 70171 states and 97566 transitions. [2021-12-18 14:16:31,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-18 14:16:31,178 INFO L276 IsEmpty]: Start isEmpty. Operand 70171 states and 97566 transitions. [2021-12-18 14:16:31,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2021-12-18 14:16:31,181 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:16:31,181 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 15, 15, 15, 15, 15, 15, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:16:31,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 14:16:31,182 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)] === [2021-12-18 14:16:31,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:16:31,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1655574243, now seen corresponding path program 1 times [2021-12-18 14:16:31,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:16:31,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789245793] [2021-12-18 14:16:31,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:16:31,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:16:31,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:16:31,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:31,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:16:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:31,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:16:31,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:31,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:16:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:31,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:16:31,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:31,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:16:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:31,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:16:31,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:16:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:16:31,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:31,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:16:31,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:31,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:16:31,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:31,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:16:31,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:31,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:16:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:31,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 14:16:31,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:31,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 14:16:31,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:31,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-18 14:16:31,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-18 14:16:31,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 14:16:31,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 14:16:31,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-18 14:16:31,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:31,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 14:16:31,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-18 14:16:31,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-18 14:16:31,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 14:16:31,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-18 14:16:31,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:31,557 INFO L134 CoverageAnalysis]: Checked inductivity of 1185 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1181 trivial. 0 not checked. [2021-12-18 14:16:31,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:16:31,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789245793] [2021-12-18 14:16:31,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789245793] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:16:31,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:16:31,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 14:16:31,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494836144] [2021-12-18 14:16:31,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:16:31,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 14:16:31,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:16:31,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 14:16:31,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 14:16:31,560 INFO L87 Difference]: Start difference. First operand 70171 states and 97566 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 14:16:35,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:16:35,921 INFO L93 Difference]: Finished difference Result 71845 states and 100098 transitions. [2021-12-18 14:16:35,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 14:16:35,922 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 259 [2021-12-18 14:16:35,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:16:36,200 INFO L225 Difference]: With dead ends: 71845 [2021-12-18 14:16:36,200 INFO L226 Difference]: Without dead ends: 71843 [2021-12-18 14:16:36,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 14:16:36,250 INFO L933 BasicCegarLoop]: 3157 mSDtfsCounter, 3404 mSDsluCounter, 5750 mSDsCounter, 0 mSdLazyCounter, 3136 mSolverCounterSat, 1757 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3765 SdHoareTripleChecker+Valid, 8907 SdHoareTripleChecker+Invalid, 4893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1757 IncrementalHoareTripleChecker+Valid, 3136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-12-18 14:16:36,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3765 Valid, 8907 Invalid, 4893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1757 Valid, 3136 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-12-18 14:16:36,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71843 states. [2021-12-18 14:16:38,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71843 to 70175. [2021-12-18 14:16:38,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70175 states, 45615 states have (on average 1.254477693741094) internal successors, (57223), 46637 states have internal predecessors, (57223), 20143 states have call successors, (20143), 4491 states have call predecessors, (20143), 4414 states have return successors, (20203), 19706 states have call predecessors, (20203), 20139 states have call successors, (20203) [2021-12-18 14:16:39,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70175 states to 70175 states and 97569 transitions. [2021-12-18 14:16:39,019 INFO L78 Accepts]: Start accepts. Automaton has 70175 states and 97569 transitions. Word has length 259 [2021-12-18 14:16:39,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:16:39,020 INFO L470 AbstractCegarLoop]: Abstraction has 70175 states and 97569 transitions. [2021-12-18 14:16:39,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 14:16:39,020 INFO L276 IsEmpty]: Start isEmpty. Operand 70175 states and 97569 transitions. [2021-12-18 14:16:39,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2021-12-18 14:16:39,024 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:16:39,024 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 15, 15, 15, 15, 15, 15, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:16:39,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 14:16:39,025 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 14:16:39,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:16:39,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1806210517, now seen corresponding path program 1 times [2021-12-18 14:16:39,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:16:39,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499110907] [2021-12-18 14:16:39,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:16:39,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:16:39,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:16:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:39,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:16:39,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:16:39,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:39,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:16:39,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:39,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:16:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:39,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:16:39,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:16:39,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:16:39,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:39,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:16:39,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:39,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:16:39,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:39,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:16:39,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:39,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:16:39,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:39,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:16:39,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:39,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 14:16:39,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:39,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 14:16:39,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:39,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-18 14:16:39,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-18 14:16:39,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 14:16:39,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 14:16:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-18 14:16:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:39,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 14:16:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-18 14:16:39,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-18 14:16:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 14:16:39,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-18 14:16:39,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 14:16:39,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:39,360 INFO L134 CoverageAnalysis]: Checked inductivity of 1195 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1189 trivial. 0 not checked. [2021-12-18 14:16:39,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:16:39,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499110907] [2021-12-18 14:16:39,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499110907] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:16:39,361 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:16:39,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 14:16:39,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826765751] [2021-12-18 14:16:39,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:16:39,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 14:16:39,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:16:39,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 14:16:39,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 14:16:39,362 INFO L87 Difference]: Start difference. First operand 70175 states and 97569 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-18 14:16:43,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:16:43,929 INFO L93 Difference]: Finished difference Result 71849 states and 100101 transitions. [2021-12-18 14:16:43,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 14:16:43,930 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 264 [2021-12-18 14:16:43,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:16:44,223 INFO L225 Difference]: With dead ends: 71849 [2021-12-18 14:16:44,223 INFO L226 Difference]: Without dead ends: 71847 [2021-12-18 14:16:44,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 14:16:44,271 INFO L933 BasicCegarLoop]: 3158 mSDtfsCounter, 3404 mSDsluCounter, 5753 mSDsCounter, 0 mSdLazyCounter, 3136 mSolverCounterSat, 1756 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3764 SdHoareTripleChecker+Valid, 8911 SdHoareTripleChecker+Invalid, 4892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1756 IncrementalHoareTripleChecker+Valid, 3136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-18 14:16:44,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3764 Valid, 8911 Invalid, 4892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1756 Valid, 3136 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-18 14:16:44,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71847 states. [2021-12-18 14:16:46,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71847 to 70179. [2021-12-18 14:16:46,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70179 states, 45618 states have (on average 1.2544609583936166) internal successors, (57226), 46640 states have internal predecessors, (57226), 20143 states have call successors, (20143), 4492 states have call predecessors, (20143), 4415 states have return successors, (20203), 19706 states have call predecessors, (20203), 20139 states have call successors, (20203) [2021-12-18 14:16:47,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70179 states to 70179 states and 97572 transitions. [2021-12-18 14:16:47,138 INFO L78 Accepts]: Start accepts. Automaton has 70179 states and 97572 transitions. Word has length 264 [2021-12-18 14:16:47,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:16:47,138 INFO L470 AbstractCegarLoop]: Abstraction has 70179 states and 97572 transitions. [2021-12-18 14:16:47,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-18 14:16:47,139 INFO L276 IsEmpty]: Start isEmpty. Operand 70179 states and 97572 transitions. [2021-12-18 14:16:47,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-12-18 14:16:47,143 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:16:47,144 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 15, 15, 15, 15, 15, 15, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:16:47,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 14:16:47,144 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 14:16:47,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:16:47,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1331944468, now seen corresponding path program 1 times [2021-12-18 14:16:47,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:16:47,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612171328] [2021-12-18 14:16:47,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:16:47,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:16:47,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:16:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:16:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:47,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:16:47,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:47,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:16:47,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:47,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:16:47,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:47,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:16:47,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:47,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:16:47,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:47,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:16:47,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:47,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:16:47,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:47,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:16:47,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:47,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:16:47,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:47,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:16:47,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:47,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:16:47,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:47,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 14:16:47,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:47,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 14:16:47,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:47,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-18 14:16:47,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-18 14:16:47,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 14:16:47,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 14:16:47,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-18 14:16:47,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:16:47,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 14:16:47,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-18 14:16:47,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-12-18 14:16:47,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-18 14:16:47,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 14:16:47,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-18 14:16:47,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-18 14:16:47,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-12-18 14:16:47,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-12-18 14:16:47,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:16:47,436 INFO L134 CoverageAnalysis]: Checked inductivity of 1220 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 1207 trivial. 0 not checked. [2021-12-18 14:16:47,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:16:47,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612171328] [2021-12-18 14:16:47,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612171328] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:16:47,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:16:47,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 14:16:47,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774259990] [2021-12-18 14:16:47,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:16:47,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 14:16:47,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:16:47,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 14:16:47,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 14:16:47,439 INFO L87 Difference]: Start difference. First operand 70179 states and 97572 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (33), 4 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-12-18 14:16:56,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:16:56,734 INFO L93 Difference]: Finished difference Result 177056 states and 246602 transitions. [2021-12-18 14:16:56,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 14:16:56,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (33), 4 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 280 [2021-12-18 14:16:56,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:16:57,179 INFO L225 Difference]: With dead ends: 177056 [2021-12-18 14:16:57,179 INFO L226 Difference]: Without dead ends: 107055 [2021-12-18 14:16:57,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 14:16:57,363 INFO L933 BasicCegarLoop]: 5983 mSDtfsCounter, 4340 mSDsluCounter, 5339 mSDsCounter, 0 mSdLazyCounter, 4385 mSolverCounterSat, 3858 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4731 SdHoareTripleChecker+Valid, 11322 SdHoareTripleChecker+Invalid, 8243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3858 IncrementalHoareTripleChecker+Valid, 4385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-12-18 14:16:57,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4731 Valid, 11322 Invalid, 8243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3858 Valid, 4385 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2021-12-18 14:16:57,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107055 states.