./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.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 6b2cae6d498f7aa4576ffcfd28b3f955c7840001d7c2abb7c90b6970c97881d1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 15:15:31,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 15:15:31,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 15:15:31,152 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 15:15:31,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 15:15:31,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 15:15:31,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 15:15:31,161 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 15:15:31,162 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 15:15:31,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 15:15:31,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 15:15:31,167 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 15:15:31,167 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 15:15:31,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 15:15:31,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 15:15:31,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 15:15:31,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 15:15:31,173 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 15:15:31,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 15:15:31,177 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 15:15:31,178 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 15:15:31,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 15:15:31,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 15:15:31,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 15:15:31,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 15:15:31,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 15:15:31,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 15:15:31,189 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 15:15:31,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 15:15:31,190 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 15:15:31,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 15:15:31,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 15:15:31,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 15:15:31,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 15:15:31,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 15:15:31,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 15:15:31,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 15:15:31,194 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 15:15:31,194 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 15:15:31,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 15:15:31,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 15:15:31,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 15:15:31,197 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 15:15:31,217 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 15:15:31,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 15:15:31,219 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 15:15:31,219 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 15:15:31,219 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 15:15:31,220 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 15:15:31,220 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 15:15:31,220 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 15:15:31,220 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 15:15:31,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 15:15:31,221 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 15:15:31,221 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 15:15:31,221 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 15:15:31,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 15:15:31,222 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 15:15:31,222 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 15:15:31,222 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 15:15:31,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 15:15:31,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 15:15:31,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 15:15:31,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 15:15:31,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 15:15:31,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 15:15:31,228 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 15:15:31,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 15:15:31,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 15:15:31,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 15:15:31,229 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 15:15:31,229 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 15:15:31,229 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 15:15:31,230 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b2cae6d498f7aa4576ffcfd28b3f955c7840001d7c2abb7c90b6970c97881d1 [2022-07-12 15:15:31,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 15:15:31,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 15:15:31,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 15:15:31,417 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 15:15:31,418 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 15:15:31,419 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2022-07-12 15:15:31,464 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34d72e635/874ccc01fbe54248bfccc6a18bc45be6/FLAG1dc86152f [2022-07-12 15:15:32,090 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 15:15:32,091 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2022-07-12 15:15:32,127 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34d72e635/874ccc01fbe54248bfccc6a18bc45be6/FLAG1dc86152f [2022-07-12 15:15:32,501 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34d72e635/874ccc01fbe54248bfccc6a18bc45be6 [2022-07-12 15:15:32,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 15:15:32,504 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 15:15:32,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 15:15:32,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 15:15:32,508 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 15:15:32,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:15:32" (1/1) ... [2022-07-12 15:15:32,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3be307dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:15:32, skipping insertion in model container [2022-07-12 15:15:32,510 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:15:32" (1/1) ... [2022-07-12 15:15:32,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 15:15:32,607 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 15:15:34,201 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[314801,314814] [2022-07-12 15:15:34,204 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[314970,314983] [2022-07-12 15:15:34,204 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315137,315150] [2022-07-12 15:15:34,205 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315305,315318] [2022-07-12 15:15:34,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 15:15:34,257 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 15:15:34,465 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[314801,314814] [2022-07-12 15:15:34,466 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[314970,314983] [2022-07-12 15:15:34,466 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315137,315150] [2022-07-12 15:15:34,467 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315305,315318] [2022-07-12 15:15:34,501 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 15:15:34,599 INFO L208 MainTranslator]: Completed translation [2022-07-12 15:15:34,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:15:34 WrapperNode [2022-07-12 15:15:34,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 15:15:34,600 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 15:15:34,601 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 15:15:34,601 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 15:15:34,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:15:34" (1/1) ... [2022-07-12 15:15:34,671 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:15:34" (1/1) ... [2022-07-12 15:15:34,758 INFO L137 Inliner]: procedures = 391, calls = 1784, calls flagged for inlining = 177, calls inlined = 156, statements flattened = 4311 [2022-07-12 15:15:34,759 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 15:15:34,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 15:15:34,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 15:15:34,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 15:15:34,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:15:34" (1/1) ... [2022-07-12 15:15:34,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:15:34" (1/1) ... [2022-07-12 15:15:34,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:15:34" (1/1) ... [2022-07-12 15:15:34,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:15:34" (1/1) ... [2022-07-12 15:15:34,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:15:34" (1/1) ... [2022-07-12 15:15:34,877 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:15:34" (1/1) ... [2022-07-12 15:15:34,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:15:34" (1/1) ... [2022-07-12 15:15:34,911 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 15:15:34,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 15:15:34,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 15:15:34,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 15:15:34,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:15:34" (1/1) ... [2022-07-12 15:15:34,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 15:15:34,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 15:15:34,940 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) [2022-07-12 15:15:34,958 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 [2022-07-12 15:15:34,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 15:15:34,979 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 15:15:34,979 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-12 15:15:34,979 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-12 15:15:34,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 15:15:34,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 15:15:34,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 15:15:34,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 15:15:34,980 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 15:15:34,980 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 15:15:34,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2022-07-12 15:15:34,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2022-07-12 15:15:34,980 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2022-07-12 15:15:34,980 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2022-07-12 15:15:34,981 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_open [2022-07-12 15:15:34,981 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_open [2022-07-12 15:15:34,981 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_load_eeprom [2022-07-12 15:15:34,981 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_load_eeprom [2022-07-12 15:15:34,981 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-12 15:15:34,981 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_sense_lan [2022-07-12 15:15:34,981 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_sense_lan [2022-07-12 15:15:34,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-12 15:15:34,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-12 15:15:34,982 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-07-12 15:15:34,982 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-07-12 15:15:34,982 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-12 15:15:34,982 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-12 15:15:34,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-12 15:15:34,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-12 15:15:34,982 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-12 15:15:34,982 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-12 15:15:34,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 15:15:34,983 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-12 15:15:34,983 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-12 15:15:34,983 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-07-12 15:15:34,983 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-07-12 15:15:34,983 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 15:15:34,983 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 15:15:34,983 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_cascade_reset [2022-07-12 15:15:34,984 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_cascade_reset [2022-07-12 15:15:34,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-12 15:15:34,984 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 15:15:34,984 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 15:15:34,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-12 15:15:34,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-12 15:15:34,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-12 15:15:34,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 15:15:34,985 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 15:15:34,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 15:15:34,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 15:15:34,986 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 15:15:34,986 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rx_bm [2022-07-12 15:15:34,986 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rx_bm [2022-07-12 15:15:34,987 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_BM_shutdown [2022-07-12 15:15:34,987 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_BM_shutdown [2022-07-12 15:15:34,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-12 15:15:34,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-12 15:15:34,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-12 15:15:34,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-12 15:15:34,988 INFO L130 BoogieDeclarations]: Found specification of procedure wait [2022-07-12 15:15:34,988 INFO L138 BoogieDeclarations]: Found implementation of procedure wait [2022-07-12 15:15:34,989 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-12 15:15:34,989 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-12 15:15:34,989 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_hwinit [2022-07-12 15:15:34,989 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_hwinit [2022-07-12 15:15:34,989 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-12 15:15:34,989 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-12 15:15:34,989 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_whatever [2022-07-12 15:15:34,989 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_whatever [2022-07-12 15:15:34,989 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_close [2022-07-12 15:15:34,990 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_close [2022-07-12 15:15:34,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-12 15:15:34,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-12 15:15:34,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 15:15:34,990 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_stop_interface [2022-07-12 15:15:34,991 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_stop_interface [2022-07-12 15:15:34,991 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_check_lan [2022-07-12 15:15:34,991 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_check_lan [2022-07-12 15:15:34,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-12 15:15:34,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-12 15:15:34,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 15:15:34,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-12 15:15:34,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-12 15:15:34,992 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 15:15:34,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 15:15:34,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 15:15:34,992 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-12 15:15:34,992 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 15:15:34,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 15:15:34,993 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-12 15:15:34,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-12 15:15:34,993 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-12 15:15:34,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-12 15:15:34,993 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rxfill [2022-07-12 15:15:34,993 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rxfill [2022-07-12 15:15:34,994 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 15:15:34,994 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 15:15:34,994 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-12 15:15:34,994 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-12 15:15:34,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-12 15:15:34,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-12 15:15:34,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 15:15:34,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 15:15:34,994 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_update_stats [2022-07-12 15:15:34,995 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_update_stats [2022-07-12 15:15:34,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 15:15:34,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 15:15:34,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 15:15:34,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 15:15:34,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 15:15:34,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 15:15:34,996 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-12 15:15:34,996 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-12 15:15:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 15:15:34,998 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 15:15:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-12 15:15:34,998 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-12 15:15:34,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 15:15:34,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 15:15:34,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 15:15:34,999 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-12 15:15:34,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-12 15:15:35,003 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-07-12 15:15:35,003 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-07-12 15:15:35,004 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 15:15:35,004 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 15:15:35,004 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-12 15:15:35,004 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-12 15:15:35,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-12 15:15:35,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-12 15:15:35,004 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-07-12 15:15:35,004 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-07-12 15:15:35,004 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_pci_remove [2022-07-12 15:15:35,005 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_pci_remove [2022-07-12 15:15:35,005 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_build_rx_pdl [2022-07-12 15:15:35,005 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_build_rx_pdl [2022-07-12 15:15:35,005 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-12 15:15:35,005 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-12 15:15:35,005 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 15:15:35,005 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 15:15:35,005 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-07-12 15:15:35,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-07-12 15:15:35,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_hp100_private [2022-07-12 15:15:35,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_hp100_private [2022-07-12 15:15:35,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 15:15:35,006 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-07-12 15:15:35,006 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-07-12 15:15:35,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 15:15:35,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 15:15:35,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_hp100_private [2022-07-12 15:15:35,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_hp100_private [2022-07-12 15:15:35,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_80 [2022-07-12 15:15:35,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_80 [2022-07-12 15:15:35,006 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2022-07-12 15:15:35,007 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2022-07-12 15:15:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-12 15:15:35,007 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-12 15:15:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-12 15:15:35,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-12 15:15:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_set_multicast_list [2022-07-12 15:15:35,007 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_set_multicast_list [2022-07-12 15:15:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_start_interface [2022-07-12 15:15:35,007 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_start_interface [2022-07-12 15:15:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-12 15:15:35,008 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-12 15:15:35,008 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_clean_txring [2022-07-12 15:15:35,008 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_clean_txring [2022-07-12 15:15:35,008 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-07-12 15:15:35,008 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-07-12 15:15:35,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 15:15:35,009 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-07-12 15:15:35,009 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-07-12 15:15:35,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-12 15:15:35,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-12 15:15:35,009 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_login_to_vg_hub [2022-07-12 15:15:35,009 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_login_to_vg_hub [2022-07-12 15:15:35,009 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-07-12 15:15:35,009 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-07-12 15:15:35,593 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 15:15:35,597 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 15:15:35,832 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 15:15:37,617 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-12 15:15:37,618 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 15:15:37,736 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L8563: SUMMARY for call #t~ret698#1 := schedule_timeout_interruptible(1); srcloc: null [2022-07-12 15:15:37,736 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L8563-1: assume -9223372036854775808 <= #t~ret698#1 && #t~ret698#1 <= 9223372036854775807;havoc #t~ret698#1; [2022-07-12 15:15:37,737 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume 0 == (if 0 == ~tmp___4~7#1 then 0 else (if 1 == ~tmp___4~7#1 then 0 else ~bitwiseAnd(~tmp___4~7#1, 2096896))) % 18446744073709551616; [2022-07-12 15:15:37,738 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !(0 == (if 0 == ~tmp___4~7#1 then 0 else (if 1 == ~tmp___4~7#1 then 0 else ~bitwiseAnd(~tmp___4~7#1, 2096896))) % 18446744073709551616); [2022-07-12 15:15:37,738 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L8567: assume (if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0; [2022-07-12 15:15:37,738 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L8567: assume !((if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0); [2022-07-12 15:15:37,802 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 15:15:37,821 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 15:15:37,821 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-12 15:15:37,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:15:37 BoogieIcfgContainer [2022-07-12 15:15:37,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 15:15:37,827 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 15:15:37,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 15:15:37,830 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 15:15:37,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 03:15:32" (1/3) ... [2022-07-12 15:15:37,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68582b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 03:15:37, skipping insertion in model container [2022-07-12 15:15:37,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:15:34" (2/3) ... [2022-07-12 15:15:37,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68582b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 03:15:37, skipping insertion in model container [2022-07-12 15:15:37,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:15:37" (3/3) ... [2022-07-12 15:15:37,832 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2022-07-12 15:15:37,861 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 15:15:37,861 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-12 15:15:37,935 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 15:15:37,939 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@42b61c9a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@41237bf0 [2022-07-12 15:15:37,939 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-12 15:15:37,946 INFO L276 IsEmpty]: Start isEmpty. Operand has 1799 states, 1150 states have (on average 1.3217391304347825) internal successors, (1520), 1200 states have internal predecessors, (1520), 568 states have call successors, (568), 80 states have call predecessors, (568), 79 states have return successors, (563), 547 states have call predecessors, (563), 563 states have call successors, (563) [2022-07-12 15:15:37,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-12 15:15:37,955 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:15:37,955 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:15:37,956 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:15:37,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:15:37,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1256620244, now seen corresponding path program 1 times [2022-07-12 15:15:37,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:15:37,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067474394] [2022-07-12 15:15:37,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:15:37,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:15:38,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:38,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:15:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:38,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:38,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:38,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:15:38,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:38,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:38,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:38,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:15:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:38,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:38,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:38,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:15:38,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:38,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:38,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:38,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 15:15:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:38,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:15:38,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:38,384 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-07-12 15:15:38,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:15:38,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067474394] [2022-07-12 15:15:38,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067474394] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:15:38,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:15:38,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:15:38,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254348634] [2022-07-12 15:15:38,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:15:38,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:15:38,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:15:38,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:15:38,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:15:38,414 INFO L87 Difference]: Start difference. First operand has 1799 states, 1150 states have (on average 1.3217391304347825) internal successors, (1520), 1200 states have internal predecessors, (1520), 568 states have call successors, (568), 80 states have call predecessors, (568), 79 states have return successors, (563), 547 states have call predecessors, (563), 563 states have call successors, (563) Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-12 15:15:42,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:15:42,571 INFO L93 Difference]: Finished difference Result 5452 states and 8256 transitions. [2022-07-12 15:15:42,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:15:42,573 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 68 [2022-07-12 15:15:42,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:15:42,613 INFO L225 Difference]: With dead ends: 5452 [2022-07-12 15:15:42,613 INFO L226 Difference]: Without dead ends: 3656 [2022-07-12 15:15:42,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:15:42,629 INFO L413 NwaCegarLoop]: 2523 mSDtfsCounter, 3273 mSDsluCounter, 1898 mSDsCounter, 0 mSdLazyCounter, 2631 mSolverCounterSat, 2123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3815 SdHoareTripleChecker+Valid, 4421 SdHoareTripleChecker+Invalid, 4754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2123 IncrementalHoareTripleChecker+Valid, 2631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-12 15:15:42,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3815 Valid, 4421 Invalid, 4754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2123 Valid, 2631 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-07-12 15:15:42,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3656 states. [2022-07-12 15:15:42,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3656 to 3484. [2022-07-12 15:15:42,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3484 states, 2231 states have (on average 1.2823845809054235) internal successors, (2861), 2327 states have internal predecessors, (2861), 1095 states have call successors, (1095), 156 states have call predecessors, (1095), 155 states have return successors, (1092), 1060 states have call predecessors, (1092), 1092 states have call successors, (1092) [2022-07-12 15:15:42,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3484 states to 3484 states and 5048 transitions. [2022-07-12 15:15:42,853 INFO L78 Accepts]: Start accepts. Automaton has 3484 states and 5048 transitions. Word has length 68 [2022-07-12 15:15:42,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:15:42,853 INFO L495 AbstractCegarLoop]: Abstraction has 3484 states and 5048 transitions. [2022-07-12 15:15:42,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-12 15:15:42,854 INFO L276 IsEmpty]: Start isEmpty. Operand 3484 states and 5048 transitions. [2022-07-12 15:15:42,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-12 15:15:42,857 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:15:42,857 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:15:42,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 15:15:42,858 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:15:42,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:15:42,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1472747592, now seen corresponding path program 1 times [2022-07-12 15:15:42,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:15:42,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334235172] [2022-07-12 15:15:42,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:15:42,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:15:42,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:42,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:15:42,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:42,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:42,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:42,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:15:42,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:42,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:42,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:42,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:15:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:42,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:42,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:42,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:15:42,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:43,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:43,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:43,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 15:15:43,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:43,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 15:15:43,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:43,023 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-07-12 15:15:43,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:15:43,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334235172] [2022-07-12 15:15:43,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334235172] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:15:43,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:15:43,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:15:43,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67414234] [2022-07-12 15:15:43,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:15:43,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:15:43,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:15:43,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:15:43,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:15:43,029 INFO L87 Difference]: Start difference. First operand 3484 states and 5048 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-12 15:15:46,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:15:46,981 INFO L93 Difference]: Finished difference Result 10244 states and 14936 transitions. [2022-07-12 15:15:46,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:15:46,982 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 73 [2022-07-12 15:15:46,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:15:47,021 INFO L225 Difference]: With dead ends: 10244 [2022-07-12 15:15:47,022 INFO L226 Difference]: Without dead ends: 6773 [2022-07-12 15:15:47,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:15:47,041 INFO L413 NwaCegarLoop]: 2807 mSDtfsCounter, 2768 mSDsluCounter, 1990 mSDsCounter, 0 mSdLazyCounter, 2552 mSolverCounterSat, 1959 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3265 SdHoareTripleChecker+Valid, 4797 SdHoareTripleChecker+Invalid, 4511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1959 IncrementalHoareTripleChecker+Valid, 2552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-07-12 15:15:47,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3265 Valid, 4797 Invalid, 4511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1959 Valid, 2552 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-07-12 15:15:47,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6773 states. [2022-07-12 15:15:47,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6773 to 6480. [2022-07-12 15:15:47,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6480 states, 4124 states have (on average 1.2839476236663434) internal successors, (5295), 4310 states have internal predecessors, (5295), 2060 states have call successors, (2060), 294 states have call predecessors, (2060), 293 states have return successors, (2079), 1983 states have call predecessors, (2079), 2057 states have call successors, (2079) [2022-07-12 15:15:47,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6480 states to 6480 states and 9434 transitions. [2022-07-12 15:15:47,333 INFO L78 Accepts]: Start accepts. Automaton has 6480 states and 9434 transitions. Word has length 73 [2022-07-12 15:15:47,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:15:47,334 INFO L495 AbstractCegarLoop]: Abstraction has 6480 states and 9434 transitions. [2022-07-12 15:15:47,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-12 15:15:47,334 INFO L276 IsEmpty]: Start isEmpty. Operand 6480 states and 9434 transitions. [2022-07-12 15:15:47,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-12 15:15:47,336 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:15:47,336 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:15:47,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 15:15:47,337 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:15:47,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:15:47,337 INFO L85 PathProgramCache]: Analyzing trace with hash -552311738, now seen corresponding path program 1 times [2022-07-12 15:15:47,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:15:47,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063420272] [2022-07-12 15:15:47,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:15:47,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:15:47,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:47,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:15:47,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:47,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:47,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:47,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:15:47,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:47,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:47,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:47,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:15:47,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:47,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:47,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:47,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:15:47,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:47,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:47,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:47,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 15:15:47,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:47,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 15:15:47,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:47,473 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-07-12 15:15:47,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:15:47,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063420272] [2022-07-12 15:15:47,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063420272] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:15:47,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:15:47,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:15:47,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709476383] [2022-07-12 15:15:47,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:15:47,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:15:47,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:15:47,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:15:47,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:15:47,476 INFO L87 Difference]: Start difference. First operand 6480 states and 9434 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-12 15:15:53,361 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-12 15:15:53,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:15:53,675 INFO L93 Difference]: Finished difference Result 19266 states and 28132 transitions. [2022-07-12 15:15:53,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:15:53,676 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 76 [2022-07-12 15:15:53,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:15:53,746 INFO L225 Difference]: With dead ends: 19266 [2022-07-12 15:15:53,747 INFO L226 Difference]: Without dead ends: 12799 [2022-07-12 15:15:53,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:15:53,773 INFO L413 NwaCegarLoop]: 2473 mSDtfsCounter, 3080 mSDsluCounter, 1879 mSDsCounter, 0 mSdLazyCounter, 2599 mSolverCounterSat, 2116 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3587 SdHoareTripleChecker+Valid, 4352 SdHoareTripleChecker+Invalid, 4716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2116 IncrementalHoareTripleChecker+Valid, 2599 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-07-12 15:15:53,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3587 Valid, 4352 Invalid, 4716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2116 Valid, 2599 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-07-12 15:15:53,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12799 states. [2022-07-12 15:15:54,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12799 to 12258. [2022-07-12 15:15:54,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12258 states, 7780 states have (on average 1.2816195372750643) internal successors, (9971), 8136 states have internal predecessors, (9971), 3906 states have call successors, (3906), 572 states have call predecessors, (3906), 569 states have return successors, (3949), 3753 states have call predecessors, (3949), 3903 states have call successors, (3949) [2022-07-12 15:15:54,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12258 states to 12258 states and 17826 transitions. [2022-07-12 15:15:54,416 INFO L78 Accepts]: Start accepts. Automaton has 12258 states and 17826 transitions. Word has length 76 [2022-07-12 15:15:54,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:15:54,416 INFO L495 AbstractCegarLoop]: Abstraction has 12258 states and 17826 transitions. [2022-07-12 15:15:54,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-12 15:15:54,417 INFO L276 IsEmpty]: Start isEmpty. Operand 12258 states and 17826 transitions. [2022-07-12 15:15:54,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-12 15:15:54,418 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:15:54,418 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:15:54,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 15:15:54,419 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:15:54,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:15:54,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1165706419, now seen corresponding path program 1 times [2022-07-12 15:15:54,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:15:54,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906350411] [2022-07-12 15:15:54,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:15:54,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:15:54,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:15:54,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:54,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:15:54,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:54,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:15:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:54,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:15:54,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:54,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 15:15:54,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:15:54,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,594 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-07-12 15:15:54,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:15:54,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906350411] [2022-07-12 15:15:54,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906350411] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:15:54,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:15:54,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:15:54,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747139266] [2022-07-12 15:15:54,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:15:54,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:15:54,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:15:54,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:15:54,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:15:54,596 INFO L87 Difference]: Start difference. First operand 12258 states and 17826 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-12 15:15:59,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:15:59,137 INFO L93 Difference]: Finished difference Result 21372 states and 31042 transitions. [2022-07-12 15:15:59,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:15:59,138 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 79 [2022-07-12 15:15:59,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:15:59,176 INFO L225 Difference]: With dead ends: 21372 [2022-07-12 15:15:59,176 INFO L226 Difference]: Without dead ends: 9127 [2022-07-12 15:15:59,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:15:59,212 INFO L413 NwaCegarLoop]: 3131 mSDtfsCounter, 1944 mSDsluCounter, 2008 mSDsCounter, 0 mSdLazyCounter, 2493 mSolverCounterSat, 1332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2399 SdHoareTripleChecker+Valid, 5139 SdHoareTripleChecker+Invalid, 3825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1332 IncrementalHoareTripleChecker+Valid, 2493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:15:59,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2399 Valid, 5139 Invalid, 3825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1332 Valid, 2493 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-07-12 15:15:59,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9127 states. [2022-07-12 15:15:59,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9127 to 8658. [2022-07-12 15:15:59,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8658 states, 5547 states have (on average 1.2714981070849107) internal successors, (7053), 5799 states have internal predecessors, (7053), 2669 states have call successors, (2669), 441 states have call predecessors, (2669), 439 states have return successors, (2689), 2560 states have call predecessors, (2689), 2666 states have call successors, (2689) [2022-07-12 15:15:59,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8658 states to 8658 states and 12411 transitions. [2022-07-12 15:15:59,519 INFO L78 Accepts]: Start accepts. Automaton has 8658 states and 12411 transitions. Word has length 79 [2022-07-12 15:15:59,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:15:59,519 INFO L495 AbstractCegarLoop]: Abstraction has 8658 states and 12411 transitions. [2022-07-12 15:15:59,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-12 15:15:59,520 INFO L276 IsEmpty]: Start isEmpty. Operand 8658 states and 12411 transitions. [2022-07-12 15:15:59,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-12 15:15:59,522 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:15:59,522 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2022-07-12 15:15:59,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 15:15:59,522 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:15:59,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:15:59,523 INFO L85 PathProgramCache]: Analyzing trace with hash 702077142, now seen corresponding path program 1 times [2022-07-12 15:15:59,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:15:59,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278533630] [2022-07-12 15:15:59,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:15:59,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:15:59,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:59,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:15:59,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:59,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:59,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:59,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:15:59,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:59,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:59,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:59,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:15:59,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:59,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:59,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:59,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:15:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:59,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:59,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:59,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 15:15:59,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:59,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 15:15:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:59,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:15:59,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:59,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:59,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:59,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-12 15:15:59,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:59,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 15:15:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:59,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 15:15:59,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:59,765 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-07-12 15:15:59,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:15:59,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278533630] [2022-07-12 15:15:59,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278533630] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:15:59,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:15:59,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:15:59,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643060418] [2022-07-12 15:15:59,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:15:59,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:15:59,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:15:59,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:15:59,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:15:59,767 INFO L87 Difference]: Start difference. First operand 8658 states and 12411 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 15:16:04,019 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-12 15:16:04,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:16:04,683 INFO L93 Difference]: Finished difference Result 17703 states and 25466 transitions. [2022-07-12 15:16:04,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 15:16:04,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 107 [2022-07-12 15:16:04,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:16:04,714 INFO L225 Difference]: With dead ends: 17703 [2022-07-12 15:16:04,715 INFO L226 Difference]: Without dead ends: 9099 [2022-07-12 15:16:04,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:16:04,735 INFO L413 NwaCegarLoop]: 2281 mSDtfsCounter, 768 mSDsluCounter, 1911 mSDsCounter, 0 mSdLazyCounter, 2055 mSolverCounterSat, 582 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1098 SdHoareTripleChecker+Valid, 4192 SdHoareTripleChecker+Invalid, 2638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 582 IncrementalHoareTripleChecker+Valid, 2055 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-07-12 15:16:04,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1098 Valid, 4192 Invalid, 2638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [582 Valid, 2055 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-07-12 15:16:04,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9099 states. [2022-07-12 15:16:04,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9099 to 8658. [2022-07-12 15:16:04,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8658 states, 5547 states have (on average 1.2700558860645395) internal successors, (7045), 5799 states have internal predecessors, (7045), 2669 states have call successors, (2669), 441 states have call predecessors, (2669), 439 states have return successors, (2689), 2560 states have call predecessors, (2689), 2666 states have call successors, (2689) [2022-07-12 15:16:05,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8658 states to 8658 states and 12403 transitions. [2022-07-12 15:16:05,014 INFO L78 Accepts]: Start accepts. Automaton has 8658 states and 12403 transitions. Word has length 107 [2022-07-12 15:16:05,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:16:05,014 INFO L495 AbstractCegarLoop]: Abstraction has 8658 states and 12403 transitions. [2022-07-12 15:16:05,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 15:16:05,015 INFO L276 IsEmpty]: Start isEmpty. Operand 8658 states and 12403 transitions. [2022-07-12 15:16:05,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-07-12 15:16:05,016 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:16:05,016 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-12 15:16:05,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 15:16:05,018 INFO L420 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)] === [2022-07-12 15:16:05,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:16:05,018 INFO L85 PathProgramCache]: Analyzing trace with hash -288027847, now seen corresponding path program 1 times [2022-07-12 15:16:05,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:16:05,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478499446] [2022-07-12 15:16:05,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:16:05,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:16:05,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:05,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:16:05,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:05,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:05,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:05,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:16:05,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:05,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:05,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:05,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:16:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:05,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:05,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:05,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:16:05,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:05,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:05,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:05,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 15:16:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:05,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 15:16:05,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:05,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 15:16:05,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:05,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 15:16:05,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:05,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 15:16:05,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:05,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:05,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 15:16:05,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:05,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:16:05,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:05,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 15:16:05,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:05,238 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-07-12 15:16:05,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:16:05,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478499446] [2022-07-12 15:16:05,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478499446] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:16:05,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:16:05,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:16:05,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92956264] [2022-07-12 15:16:05,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:16:05,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:16:05,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:16:05,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:16:05,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:16:05,241 INFO L87 Difference]: Start difference. First operand 8658 states and 12403 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, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 15:16:11,641 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-12 15:16:13,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:16:13,054 INFO L93 Difference]: Finished difference Result 26375 states and 38008 transitions. [2022-07-12 15:16:13,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:16:13,054 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, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 123 [2022-07-12 15:16:13,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:16:13,134 INFO L225 Difference]: With dead ends: 26375 [2022-07-12 15:16:13,134 INFO L226 Difference]: Without dead ends: 17771 [2022-07-12 15:16:13,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:16:13,173 INFO L413 NwaCegarLoop]: 2622 mSDtfsCounter, 3212 mSDsluCounter, 1963 mSDsCounter, 0 mSdLazyCounter, 2631 mSolverCounterSat, 2123 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3750 SdHoareTripleChecker+Valid, 4585 SdHoareTripleChecker+Invalid, 4755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2123 IncrementalHoareTripleChecker+Valid, 2631 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-07-12 15:16:13,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3750 Valid, 4585 Invalid, 4755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2123 Valid, 2631 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-07-12 15:16:13,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17771 states. [2022-07-12 15:16:13,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17771 to 16867. [2022-07-12 15:16:13,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16867 states, 10788 states have (on average 1.2728958101594363) internal successors, (13732), 11270 states have internal predecessors, (13732), 5223 states have call successors, (5223), 856 states have call predecessors, (5223), 853 states have return successors, (5266), 5026 states have call predecessors, (5266), 5220 states have call successors, (5266) [2022-07-12 15:16:13,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16867 states to 16867 states and 24221 transitions. [2022-07-12 15:16:13,889 INFO L78 Accepts]: Start accepts. Automaton has 16867 states and 24221 transitions. Word has length 123 [2022-07-12 15:16:13,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:16:13,890 INFO L495 AbstractCegarLoop]: Abstraction has 16867 states and 24221 transitions. [2022-07-12 15:16:13,890 INFO L496 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, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 15:16:13,890 INFO L276 IsEmpty]: Start isEmpty. Operand 16867 states and 24221 transitions. [2022-07-12 15:16:13,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-07-12 15:16:13,892 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:16:13,892 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-12 15:16:13,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 15:16:13,892 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:16:13,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:16:13,893 INFO L85 PathProgramCache]: Analyzing trace with hash 134673979, now seen corresponding path program 1 times [2022-07-12 15:16:13,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:16:13,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703097135] [2022-07-12 15:16:13,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:16:13,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:16:13,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:14,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:16:14,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:14,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:14,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:14,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:16:14,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:14,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:14,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:14,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:16:14,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:14,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:14,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:14,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:16:14,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:14,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:14,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:14,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 15:16:14,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:14,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 15:16:14,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:14,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 15:16:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:14,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 15:16:14,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:14,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 15:16:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:14,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:14,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:14,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 15:16:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:14,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:16:14,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:14,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 15:16:14,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:14,144 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-07-12 15:16:14,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:16:14,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703097135] [2022-07-12 15:16:14,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703097135] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:16:14,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:16:14,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:16:14,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089462849] [2022-07-12 15:16:14,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:16:14,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:16:14,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:16:14,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:16:14,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:16:14,146 INFO L87 Difference]: Start difference. First operand 16867 states and 24221 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 15:16:19,526 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-12 15:16:20,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:16:20,379 INFO L93 Difference]: Finished difference Result 17755 states and 25634 transitions. [2022-07-12 15:16:20,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:16:20,380 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2022-07-12 15:16:20,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:16:20,446 INFO L225 Difference]: With dead ends: 17755 [2022-07-12 15:16:20,446 INFO L226 Difference]: Without dead ends: 17753 [2022-07-12 15:16:20,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:16:20,460 INFO L413 NwaCegarLoop]: 2266 mSDtfsCounter, 2529 mSDsluCounter, 3073 mSDsCounter, 0 mSdLazyCounter, 3531 mSolverCounterSat, 1584 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2742 SdHoareTripleChecker+Valid, 5339 SdHoareTripleChecker+Invalid, 5116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1584 IncrementalHoareTripleChecker+Valid, 3531 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-07-12 15:16:20,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2742 Valid, 5339 Invalid, 5116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1584 Valid, 3531 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-07-12 15:16:20,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17753 states. [2022-07-12 15:16:21,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17753 to 16871. [2022-07-12 15:16:21,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16871 states, 10791 states have (on average 1.272819942544713) internal successors, (13735), 11273 states have internal predecessors, (13735), 5223 states have call successors, (5223), 857 states have call predecessors, (5223), 854 states have return successors, (5266), 5026 states have call predecessors, (5266), 5220 states have call successors, (5266) [2022-07-12 15:16:21,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16871 states to 16871 states and 24224 transitions. [2022-07-12 15:16:21,203 INFO L78 Accepts]: Start accepts. Automaton has 16871 states and 24224 transitions. Word has length 123 [2022-07-12 15:16:21,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:16:21,204 INFO L495 AbstractCegarLoop]: Abstraction has 16871 states and 24224 transitions. [2022-07-12 15:16:21,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 15:16:21,204 INFO L276 IsEmpty]: Start isEmpty. Operand 16871 states and 24224 transitions. [2022-07-12 15:16:21,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-07-12 15:16:21,206 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:16:21,206 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-12 15:16:21,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 15:16:21,207 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:16:21,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:16:21,207 INFO L85 PathProgramCache]: Analyzing trace with hash 119085821, now seen corresponding path program 1 times [2022-07-12 15:16:21,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:16:21,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692134910] [2022-07-12 15:16:21,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:16:21,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:16:21,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:21,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:16:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:21,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:21,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:21,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:16:21,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:21,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:21,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:21,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:16:21,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:21,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:21,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:21,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:16:21,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:21,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:21,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:21,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 15:16:21,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:21,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 15:16:21,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:21,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 15:16:21,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:21,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 15:16:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:21,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 15:16:21,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:21,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:21,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:21,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 15:16:21,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:21,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:16:21,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:21,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 15:16:21,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:21,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 15:16:21,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:21,431 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-07-12 15:16:21,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:16:21,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692134910] [2022-07-12 15:16:21,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692134910] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:16:21,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:16:21,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:16:21,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002516128] [2022-07-12 15:16:21,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:16:21,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:16:21,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:16:21,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:16:21,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:16:21,433 INFO L87 Difference]: Start difference. First operand 16871 states and 24224 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 15:16:26,642 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-12 15:16:28,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-12 15:16:29,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:16:29,636 INFO L93 Difference]: Finished difference Result 17759 states and 25637 transitions. [2022-07-12 15:16:29,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:16:29,637 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 128 [2022-07-12 15:16:29,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:16:29,711 INFO L225 Difference]: With dead ends: 17759 [2022-07-12 15:16:29,712 INFO L226 Difference]: Without dead ends: 17757 [2022-07-12 15:16:29,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:16:29,727 INFO L413 NwaCegarLoop]: 2270 mSDtfsCounter, 2521 mSDsluCounter, 3076 mSDsCounter, 0 mSdLazyCounter, 3530 mSolverCounterSat, 1583 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2733 SdHoareTripleChecker+Valid, 5346 SdHoareTripleChecker+Invalid, 5115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1583 IncrementalHoareTripleChecker+Valid, 3530 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-07-12 15:16:29,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2733 Valid, 5346 Invalid, 5115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1583 Valid, 3530 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2022-07-12 15:16:29,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17757 states. [2022-07-12 15:16:30,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17757 to 16875. [2022-07-12 15:16:30,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16875 states, 10794 states have (on average 1.2727441171020937) internal successors, (13738), 11276 states have internal predecessors, (13738), 5223 states have call successors, (5223), 858 states have call predecessors, (5223), 855 states have return successors, (5266), 5026 states have call predecessors, (5266), 5220 states have call successors, (5266) [2022-07-12 15:16:30,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16875 states to 16875 states and 24227 transitions. [2022-07-12 15:16:30,398 INFO L78 Accepts]: Start accepts. Automaton has 16875 states and 24227 transitions. Word has length 128 [2022-07-12 15:16:30,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:16:30,398 INFO L495 AbstractCegarLoop]: Abstraction has 16875 states and 24227 transitions. [2022-07-12 15:16:30,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 15:16:30,399 INFO L276 IsEmpty]: Start isEmpty. Operand 16875 states and 24227 transitions. [2022-07-12 15:16:30,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-07-12 15:16:30,401 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:16:30,401 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2022-07-12 15:16:30,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 15:16:30,402 INFO L420 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)] === [2022-07-12 15:16:30,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:16:30,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1558624059, now seen corresponding path program 1 times [2022-07-12 15:16:30,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:16:30,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880462602] [2022-07-12 15:16:30,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:16:30,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:16:30,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:30,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:16:30,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:30,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:30,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:30,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:16:30,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:30,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:30,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:30,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:16:30,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:30,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:30,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:30,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:16:30,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:30,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:30,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:30,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 15:16:30,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:30,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 15:16:30,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:30,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 15:16:30,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:30,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 15:16:30,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:30,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 15:16:30,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:30,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:30,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:30,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 15:16:30,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:30,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:16:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:30,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 15:16:30,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:30,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 15:16:30,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:30,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 15:16:30,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:30,597 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-07-12 15:16:30,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:16:30,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880462602] [2022-07-12 15:16:30,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880462602] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:16:30,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:16:30,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:16:30,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409397870] [2022-07-12 15:16:30,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:16:30,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:16:30,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:16:30,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:16:30,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:16:30,600 INFO L87 Difference]: Start difference. First operand 16875 states and 24227 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 15:16:35,794 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-12 15:16:37,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-12 15:16:38,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:16:38,933 INFO L93 Difference]: Finished difference Result 17763 states and 25640 transitions. [2022-07-12 15:16:38,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:16:38,934 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 133 [2022-07-12 15:16:38,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:16:39,015 INFO L225 Difference]: With dead ends: 17763 [2022-07-12 15:16:39,015 INFO L226 Difference]: Without dead ends: 17761 [2022-07-12 15:16:39,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:16:39,032 INFO L413 NwaCegarLoop]: 2269 mSDtfsCounter, 2521 mSDsluCounter, 3073 mSDsCounter, 0 mSdLazyCounter, 3530 mSolverCounterSat, 1582 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2734 SdHoareTripleChecker+Valid, 5342 SdHoareTripleChecker+Invalid, 5114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1582 IncrementalHoareTripleChecker+Valid, 3530 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-07-12 15:16:39,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2734 Valid, 5342 Invalid, 5114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1582 Valid, 3530 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2022-07-12 15:16:39,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17761 states. [2022-07-12 15:16:39,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17761 to 16879. [2022-07-12 15:16:39,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16879 states, 10797 states have (on average 1.2726683337964249) internal successors, (13741), 11279 states have internal predecessors, (13741), 5223 states have call successors, (5223), 859 states have call predecessors, (5223), 856 states have return successors, (5266), 5026 states have call predecessors, (5266), 5220 states have call successors, (5266) [2022-07-12 15:16:39,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16879 states to 16879 states and 24230 transitions. [2022-07-12 15:16:39,796 INFO L78 Accepts]: Start accepts. Automaton has 16879 states and 24230 transitions. Word has length 133 [2022-07-12 15:16:39,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:16:39,796 INFO L495 AbstractCegarLoop]: Abstraction has 16879 states and 24230 transitions. [2022-07-12 15:16:39,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 15:16:39,796 INFO L276 IsEmpty]: Start isEmpty. Operand 16879 states and 24230 transitions. [2022-07-12 15:16:39,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-07-12 15:16:39,798 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:16:39,798 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-07-12 15:16:39,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 15:16:39,799 INFO L420 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)] === [2022-07-12 15:16:39,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:16:39,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1025780093, now seen corresponding path program 1 times [2022-07-12 15:16:39,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:16:39,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403702671] [2022-07-12 15:16:39,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:16:39,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:16:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:39,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:16:39,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:39,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:39,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:16:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:39,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:39,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:39,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:16:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:39,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:39,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:39,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:16:39,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:39,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:39,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:39,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 15:16:39,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:39,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 15:16:39,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:39,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 15:16:39,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:39,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 15:16:39,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:39,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 15:16:39,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:39,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:39,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:39,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 15:16:39,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:39,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:16:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:39,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 15:16:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:39,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 15:16:39,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:39,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 15:16:39,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:39,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-12 15:16:39,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:39,973 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2022-07-12 15:16:39,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:16:39,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403702671] [2022-07-12 15:16:39,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403702671] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:16:39,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:16:39,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:16:39,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828659217] [2022-07-12 15:16:39,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:16:39,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:16:39,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:16:39,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:16:39,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:16:39,975 INFO L87 Difference]: Start difference. First operand 16879 states and 24230 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 15:16:45,392 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-12 15:16:46,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:16:46,402 INFO L93 Difference]: Finished difference Result 17767 states and 25643 transitions. [2022-07-12 15:16:46,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:16:46,403 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 138 [2022-07-12 15:16:46,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:16:46,468 INFO L225 Difference]: With dead ends: 17767 [2022-07-12 15:16:46,468 INFO L226 Difference]: Without dead ends: 17765 [2022-07-12 15:16:46,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:16:46,483 INFO L413 NwaCegarLoop]: 2272 mSDtfsCounter, 2520 mSDsluCounter, 3080 mSDsCounter, 0 mSdLazyCounter, 3531 mSolverCounterSat, 1579 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2732 SdHoareTripleChecker+Valid, 5352 SdHoareTripleChecker+Invalid, 5111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1579 IncrementalHoareTripleChecker+Valid, 3531 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-07-12 15:16:46,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2732 Valid, 5352 Invalid, 5111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1579 Valid, 3531 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-07-12 15:16:46,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17765 states. [2022-07-12 15:16:47,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17765 to 16883. [2022-07-12 15:16:47,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16883 states, 10800 states have (on average 1.2725925925925925) internal successors, (13744), 11282 states have internal predecessors, (13744), 5223 states have call successors, (5223), 860 states have call predecessors, (5223), 857 states have return successors, (5266), 5026 states have call predecessors, (5266), 5220 states have call successors, (5266) [2022-07-12 15:16:47,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16883 states to 16883 states and 24233 transitions. [2022-07-12 15:16:47,204 INFO L78 Accepts]: Start accepts. Automaton has 16883 states and 24233 transitions. Word has length 138 [2022-07-12 15:16:47,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:16:47,204 INFO L495 AbstractCegarLoop]: Abstraction has 16883 states and 24233 transitions. [2022-07-12 15:16:47,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 15:16:47,204 INFO L276 IsEmpty]: Start isEmpty. Operand 16883 states and 24233 transitions. [2022-07-12 15:16:47,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-12 15:16:47,206 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:16:47,207 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-12 15:16:47,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 15:16:47,207 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:16:47,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:16:47,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1519618408, now seen corresponding path program 1 times [2022-07-12 15:16:47,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:16:47,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329939175] [2022-07-12 15:16:47,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:16:47,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:16:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:47,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:16:47,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:47,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:47,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:47,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:16:47,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:47,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:47,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:47,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:16:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:47,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:47,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:47,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:16:47,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:47,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:47,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:47,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 15:16:47,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:47,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 15:16:47,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:47,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 15:16:47,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:47,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 15:16:47,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:47,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 15:16:47,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:47,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 15:16:47,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:47,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:47,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:47,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-12 15:16:47,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:47,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 15:16:47,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:47,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-12 15:16:47,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:47,376 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-07-12 15:16:47,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:16:47,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329939175] [2022-07-12 15:16:47,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329939175] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:16:47,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:16:47,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:16:47,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877223013] [2022-07-12 15:16:47,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:16:47,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:16:47,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:16:47,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:16:47,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:16:47,378 INFO L87 Difference]: Start difference. First operand 16883 states and 24233 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-12 15:16:52,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:16:52,092 INFO L93 Difference]: Finished difference Result 39594 states and 56950 transitions. [2022-07-12 15:16:52,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:16:52,093 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 142 [2022-07-12 15:16:52,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:16:52,208 INFO L225 Difference]: With dead ends: 39594 [2022-07-12 15:16:52,208 INFO L226 Difference]: Without dead ends: 22765 [2022-07-12 15:16:52,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:16:52,295 INFO L413 NwaCegarLoop]: 3521 mSDtfsCounter, 1803 mSDsluCounter, 2237 mSDsCounter, 0 mSdLazyCounter, 2492 mSolverCounterSat, 1242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2258 SdHoareTripleChecker+Valid, 5758 SdHoareTripleChecker+Invalid, 3734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1242 IncrementalHoareTripleChecker+Valid, 2492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-07-12 15:16:52,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2258 Valid, 5758 Invalid, 3734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1242 Valid, 2492 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-07-12 15:16:52,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22765 states. [2022-07-12 15:16:53,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22765 to 21461. [2022-07-12 15:16:53,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21461 states, 13760 states have (on average 1.26875) internal successors, (17458), 14368 states have internal predecessors, (17458), 6559 states have call successors, (6559), 1142 states have call predecessors, (6559), 1139 states have return successors, (6602), 6318 states have call predecessors, (6602), 6556 states have call successors, (6602) [2022-07-12 15:16:53,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21461 states to 21461 states and 30619 transitions. [2022-07-12 15:16:53,425 INFO L78 Accepts]: Start accepts. Automaton has 21461 states and 30619 transitions. Word has length 142 [2022-07-12 15:16:53,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:16:53,426 INFO L495 AbstractCegarLoop]: Abstraction has 21461 states and 30619 transitions. [2022-07-12 15:16:53,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-12 15:16:53,426 INFO L276 IsEmpty]: Start isEmpty. Operand 21461 states and 30619 transitions. [2022-07-12 15:16:53,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-07-12 15:16:53,428 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:16:53,428 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-12 15:16:53,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 15:16:53,428 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:16:53,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:16:53,429 INFO L85 PathProgramCache]: Analyzing trace with hash -197466053, now seen corresponding path program 1 times [2022-07-12 15:16:53,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:16:53,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078748303] [2022-07-12 15:16:53,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:16:53,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:16:53,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:53,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:16:53,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:53,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:53,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:53,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:16:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:53,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:53,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:53,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:16:53,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:53,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:53,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:53,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:16:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:53,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:53,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:53,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 15:16:53,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:53,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 15:16:53,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:53,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 15:16:53,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:53,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 15:16:53,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:53,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 15:16:53,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:53,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:53,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:53,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 15:16:53,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:53,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:16:53,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:53,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 15:16:53,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:53,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 15:16:53,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:53,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 15:16:53,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:53,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-12 15:16:53,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:53,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 15:16:53,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:53,594 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-07-12 15:16:53,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:16:53,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078748303] [2022-07-12 15:16:53,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078748303] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:16:53,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:16:53,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:16:53,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961148238] [2022-07-12 15:16:53,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:16:53,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:16:53,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:16:53,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:16:53,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:16:53,596 INFO L87 Difference]: Start difference. First operand 21461 states and 30619 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-12 15:16:58,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:16:58,204 INFO L93 Difference]: Finished difference Result 22727 states and 32616 transitions. [2022-07-12 15:16:58,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:16:58,204 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2022-07-12 15:16:58,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:16:58,270 INFO L225 Difference]: With dead ends: 22727 [2022-07-12 15:16:58,270 INFO L226 Difference]: Without dead ends: 22725 [2022-07-12 15:16:58,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:16:58,282 INFO L413 NwaCegarLoop]: 2269 mSDtfsCounter, 2521 mSDsluCounter, 3073 mSDsCounter, 0 mSdLazyCounter, 3532 mSolverCounterSat, 1580 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2734 SdHoareTripleChecker+Valid, 5342 SdHoareTripleChecker+Invalid, 5112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1580 IncrementalHoareTripleChecker+Valid, 3532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-07-12 15:16:58,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2734 Valid, 5342 Invalid, 5112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1580 Valid, 3532 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-07-12 15:16:58,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22725 states. [2022-07-12 15:16:59,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22725 to 21465. [2022-07-12 15:16:59,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21465 states, 13763 states have (on average 1.2686914190220155) internal successors, (17461), 14371 states have internal predecessors, (17461), 6559 states have call successors, (6559), 1143 states have call predecessors, (6559), 1140 states have return successors, (6602), 6318 states have call predecessors, (6602), 6556 states have call successors, (6602) [2022-07-12 15:16:59,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21465 states to 21465 states and 30622 transitions. [2022-07-12 15:16:59,109 INFO L78 Accepts]: Start accepts. Automaton has 21465 states and 30622 transitions. Word has length 143 [2022-07-12 15:16:59,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:16:59,109 INFO L495 AbstractCegarLoop]: Abstraction has 21465 states and 30622 transitions. [2022-07-12 15:16:59,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-12 15:16:59,110 INFO L276 IsEmpty]: Start isEmpty. Operand 21465 states and 30622 transitions. [2022-07-12 15:16:59,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-07-12 15:16:59,111 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:16:59,111 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 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] [2022-07-12 15:16:59,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 15:16:59,112 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:16:59,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:16:59,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1861665026, now seen corresponding path program 1 times [2022-07-12 15:16:59,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:16:59,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99343077] [2022-07-12 15:16:59,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:16:59,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:16:59,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:59,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:16:59,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:59,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:59,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:59,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:16:59,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:59,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:59,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:16:59,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:59,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:59,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:59,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:16:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:59,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:59,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:59,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 15:16:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:59,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 15:16:59,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:59,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 15:16:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:59,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 15:16:59,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:59,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 15:16:59,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:59,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:59,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:59,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 15:16:59,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:59,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:16:59,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:59,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 15:16:59,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:59,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 15:16:59,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:59,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 15:16:59,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:59,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-12 15:16:59,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:59,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 15:16:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:59,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 15:16:59,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:59,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 15:16:59,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:59,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-12 15:16:59,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:59,308 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-07-12 15:16:59,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:16:59,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99343077] [2022-07-12 15:16:59,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99343077] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:16:59,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:16:59,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:16:59,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743840431] [2022-07-12 15:16:59,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:16:59,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:16:59,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:16:59,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:16:59,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:16:59,311 INFO L87 Difference]: Start difference. First operand 21465 states and 30622 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, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-12 15:17:04,672 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-12 15:17:06,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:17:06,190 INFO L93 Difference]: Finished difference Result 22731 states and 32619 transitions. [2022-07-12 15:17:06,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:17:06,191 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, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 166 [2022-07-12 15:17:06,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:17:06,278 INFO L225 Difference]: With dead ends: 22731 [2022-07-12 15:17:06,278 INFO L226 Difference]: Without dead ends: 22729 [2022-07-12 15:17:06,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:17:06,296 INFO L413 NwaCegarLoop]: 2271 mSDtfsCounter, 2511 mSDsluCounter, 3077 mSDsCounter, 0 mSdLazyCounter, 3531 mSolverCounterSat, 1577 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2722 SdHoareTripleChecker+Valid, 5348 SdHoareTripleChecker+Invalid, 5109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1577 IncrementalHoareTripleChecker+Valid, 3531 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-07-12 15:17:06,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2722 Valid, 5348 Invalid, 5109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1577 Valid, 3531 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-07-12 15:17:06,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22729 states. [2022-07-12 15:17:07,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22729 to 21469. [2022-07-12 15:17:07,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21469 states, 13766 states have (on average 1.2686328635769286) internal successors, (17464), 14374 states have internal predecessors, (17464), 6559 states have call successors, (6559), 1144 states have call predecessors, (6559), 1141 states have return successors, (6602), 6318 states have call predecessors, (6602), 6556 states have call successors, (6602) [2022-07-12 15:17:07,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21469 states to 21469 states and 30625 transitions. [2022-07-12 15:17:07,238 INFO L78 Accepts]: Start accepts. Automaton has 21469 states and 30625 transitions. Word has length 166 [2022-07-12 15:17:07,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:17:07,239 INFO L495 AbstractCegarLoop]: Abstraction has 21469 states and 30625 transitions. [2022-07-12 15:17:07,239 INFO L496 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, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-12 15:17:07,239 INFO L276 IsEmpty]: Start isEmpty. Operand 21469 states and 30625 transitions. [2022-07-12 15:17:07,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-07-12 15:17:07,240 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:17:07,241 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-12 15:17:07,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-12 15:17:07,241 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:17:07,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:17:07,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1530366267, now seen corresponding path program 1 times [2022-07-12 15:17:07,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:17:07,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416493783] [2022-07-12 15:17:07,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:17:07,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:17:07,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:07,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:17:07,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:07,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:07,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:07,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:17:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:07,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:07,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:07,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:17:07,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:07,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:07,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:07,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:17:07,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:07,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:07,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:07,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 15:17:07,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:07,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 15:17:07,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:07,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 15:17:07,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:07,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 15:17:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:07,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 15:17:07,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:07,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:07,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:07,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 15:17:07,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:07,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:17:07,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:07,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 15:17:07,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:07,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 15:17:07,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:07,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 15:17:07,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:07,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-12 15:17:07,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:07,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 15:17:07,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:07,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-12 15:17:07,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:07,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-12 15:17:07,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:07,412 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-07-12 15:17:07,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:17:07,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416493783] [2022-07-12 15:17:07,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416493783] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:17:07,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:17:07,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:17:07,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781589976] [2022-07-12 15:17:07,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:17:07,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:17:07,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:17:07,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:17:07,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:17:07,414 INFO L87 Difference]: Start difference. First operand 21469 states and 30625 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-12 15:17:13,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:17:13,290 INFO L93 Difference]: Finished difference Result 26901 states and 38530 transitions. [2022-07-12 15:17:13,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 15:17:13,299 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 153 [2022-07-12 15:17:13,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:17:13,400 INFO L225 Difference]: With dead ends: 26901 [2022-07-12 15:17:13,400 INFO L226 Difference]: Without dead ends: 26899 [2022-07-12 15:17:13,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:17:13,429 INFO L413 NwaCegarLoop]: 2528 mSDtfsCounter, 2114 mSDsluCounter, 3448 mSDsCounter, 0 mSdLazyCounter, 4874 mSolverCounterSat, 1445 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2355 SdHoareTripleChecker+Valid, 5976 SdHoareTripleChecker+Invalid, 6319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1445 IncrementalHoareTripleChecker+Valid, 4874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-07-12 15:17:13,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2355 Valid, 5976 Invalid, 6319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1445 Valid, 4874 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-07-12 15:17:13,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26899 states. [2022-07-12 15:17:14,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26899 to 25623. [2022-07-12 15:17:14,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25623 states, 16373 states have (on average 1.2737433579673854) internal successors, (20855), 17093 states have internal predecessors, (20855), 7815 states have call successors, (7815), 1435 states have call predecessors, (7815), 1432 states have return successors, (7858), 7558 states have call predecessors, (7858), 7812 states have call successors, (7858) [2022-07-12 15:17:14,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25623 states to 25623 states and 36528 transitions. [2022-07-12 15:17:14,497 INFO L78 Accepts]: Start accepts. Automaton has 25623 states and 36528 transitions. Word has length 153 [2022-07-12 15:17:14,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:17:14,498 INFO L495 AbstractCegarLoop]: Abstraction has 25623 states and 36528 transitions. [2022-07-12 15:17:14,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-12 15:17:14,498 INFO L276 IsEmpty]: Start isEmpty. Operand 25623 states and 36528 transitions. [2022-07-12 15:17:14,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-07-12 15:17:14,500 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:17:14,500 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-12 15:17:14,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-12 15:17:14,500 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:17:14,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:17:14,501 INFO L85 PathProgramCache]: Analyzing trace with hash 184219261, now seen corresponding path program 1 times [2022-07-12 15:17:14,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:17:14,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420712492] [2022-07-12 15:17:14,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:17:14,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:17:14,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:14,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:17:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:14,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:14,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:14,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:17:14,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:14,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:14,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:14,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:17:14,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:14,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:14,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:14,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:17:14,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:14,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:14,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 15:17:14,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:14,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 15:17:14,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:14,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 15:17:14,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:14,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 15:17:14,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:14,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 15:17:14,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:14,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:14,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:14,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 15:17:14,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:14,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:17:14,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:14,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 15:17:14,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:14,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 15:17:14,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:14,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 15:17:14,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:14,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-12 15:17:14,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:14,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 15:17:14,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:14,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-12 15:17:14,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:14,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-12 15:17:14,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:14,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-12 15:17:14,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:14,683 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2022-07-12 15:17:14,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:17:14,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420712492] [2022-07-12 15:17:14,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420712492] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:17:14,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:17:14,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:17:14,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357655366] [2022-07-12 15:17:14,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:17:14,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:17:14,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:17:14,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:17:14,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:17:14,686 INFO L87 Difference]: Start difference. First operand 25623 states and 36528 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-12 15:17:20,347 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-12 15:17:21,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:17:21,843 INFO L93 Difference]: Finished difference Result 26905 states and 38533 transitions. [2022-07-12 15:17:21,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:17:21,844 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 158 [2022-07-12 15:17:21,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:17:21,952 INFO L225 Difference]: With dead ends: 26905 [2022-07-12 15:17:21,952 INFO L226 Difference]: Without dead ends: 26903 [2022-07-12 15:17:21,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:17:21,975 INFO L413 NwaCegarLoop]: 2271 mSDtfsCounter, 2520 mSDsluCounter, 3076 mSDsCounter, 0 mSdLazyCounter, 3528 mSolverCounterSat, 1574 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2734 SdHoareTripleChecker+Valid, 5347 SdHoareTripleChecker+Invalid, 5103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1574 IncrementalHoareTripleChecker+Valid, 3528 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-07-12 15:17:21,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2734 Valid, 5347 Invalid, 5103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1574 Valid, 3528 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-07-12 15:17:21,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26903 states. [2022-07-12 15:17:22,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26903 to 25627. [2022-07-12 15:17:22,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25627 states, 16376 states have (on average 1.2736932095749878) internal successors, (20858), 17096 states have internal predecessors, (20858), 7815 states have call successors, (7815), 1436 states have call predecessors, (7815), 1433 states have return successors, (7858), 7558 states have call predecessors, (7858), 7812 states have call successors, (7858) [2022-07-12 15:17:23,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25627 states to 25627 states and 36531 transitions. [2022-07-12 15:17:23,062 INFO L78 Accepts]: Start accepts. Automaton has 25627 states and 36531 transitions. Word has length 158 [2022-07-12 15:17:23,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:17:23,062 INFO L495 AbstractCegarLoop]: Abstraction has 25627 states and 36531 transitions. [2022-07-12 15:17:23,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-12 15:17:23,062 INFO L276 IsEmpty]: Start isEmpty. Operand 25627 states and 36531 transitions. [2022-07-12 15:17:23,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-07-12 15:17:23,071 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:17:23,071 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 6, 6, 6, 4, 4, 4, 4, 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] [2022-07-12 15:17:23,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-12 15:17:23,072 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:17:23,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:17:23,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1461900950, now seen corresponding path program 1 times [2022-07-12 15:17:23,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:17:23,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99471609] [2022-07-12 15:17:23,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:17:23,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:17:23,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:23,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:17:23,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:23,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:23,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:23,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:17:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:23,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:23,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:23,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:17:23,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:23,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:23,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:23,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:17:23,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:23,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:23,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:23,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 15:17:23,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:23,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 15:17:23,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:23,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 15:17:23,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:23,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 15:17:23,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:23,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 15:17:23,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:23,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:23,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:23,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 15:17:23,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:23,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:17:23,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:23,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 15:17:23,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:23,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 15:17:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:23,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 15:17:23,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:23,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-12 15:17:23,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:23,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 15:17:23,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:23,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 15:17:23,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:23,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 15:17:23,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:23,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-12 15:17:23,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:23,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-12 15:17:23,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:23,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-12 15:17:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:23,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-12 15:17:23,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:23,267 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-12 15:17:23,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:17:23,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99471609] [2022-07-12 15:17:23,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99471609] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:17:23,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:17:23,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:17:23,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294958376] [2022-07-12 15:17:23,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:17:23,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:17:23,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:17:23,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:17:23,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:17:23,272 INFO L87 Difference]: Start difference. First operand 25627 states and 36531 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, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-12 15:17:28,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-12 15:17:30,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:17:30,239 INFO L93 Difference]: Finished difference Result 26909 states and 38536 transitions. [2022-07-12 15:17:30,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:17:30,240 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, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 181 [2022-07-12 15:17:30,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:17:30,329 INFO L225 Difference]: With dead ends: 26909 [2022-07-12 15:17:30,329 INFO L226 Difference]: Without dead ends: 26907 [2022-07-12 15:17:30,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:17:30,346 INFO L413 NwaCegarLoop]: 2271 mSDtfsCounter, 2513 mSDsluCounter, 3078 mSDsCounter, 0 mSdLazyCounter, 3528 mSolverCounterSat, 1573 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2723 SdHoareTripleChecker+Valid, 5349 SdHoareTripleChecker+Invalid, 5102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1573 IncrementalHoareTripleChecker+Valid, 3528 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-07-12 15:17:30,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2723 Valid, 5349 Invalid, 5102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1573 Valid, 3528 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-07-12 15:17:30,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26907 states. [2022-07-12 15:17:31,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26907 to 25631. [2022-07-12 15:17:31,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25631 states, 16379 states have (on average 1.2736430795530862) internal successors, (20861), 17099 states have internal predecessors, (20861), 7815 states have call successors, (7815), 1437 states have call predecessors, (7815), 1434 states have return successors, (7858), 7558 states have call predecessors, (7858), 7812 states have call successors, (7858) [2022-07-12 15:17:31,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25631 states to 25631 states and 36534 transitions. [2022-07-12 15:17:31,527 INFO L78 Accepts]: Start accepts. Automaton has 25631 states and 36534 transitions. Word has length 181 [2022-07-12 15:17:31,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:17:31,527 INFO L495 AbstractCegarLoop]: Abstraction has 25631 states and 36534 transitions. [2022-07-12 15:17:31,528 INFO L496 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, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-12 15:17:31,528 INFO L276 IsEmpty]: Start isEmpty. Operand 25631 states and 36534 transitions. [2022-07-12 15:17:31,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-07-12 15:17:31,529 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:17:31,529 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-12 15:17:31,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-12 15:17:31,530 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:17:31,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:17:31,530 INFO L85 PathProgramCache]: Analyzing trace with hash 442414333, now seen corresponding path program 1 times [2022-07-12 15:17:31,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:17:31,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970887165] [2022-07-12 15:17:31,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:17:31,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:17:31,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:31,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:17:31,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:31,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:31,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:31,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:17:31,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:31,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:31,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:31,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:17:31,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:31,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:31,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:31,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:17:31,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:31,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:31,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:31,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 15:17:31,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:31,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 15:17:31,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:31,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 15:17:31,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:31,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 15:17:31,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:31,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 15:17:31,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:31,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:31,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:31,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 15:17:31,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:31,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:17:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:31,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 15:17:31,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:31,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 15:17:31,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:31,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 15:17:31,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:31,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-12 15:17:31,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:31,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 15:17:31,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:31,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-12 15:17:31,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:31,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-12 15:17:31,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:31,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-12 15:17:31,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:31,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-12 15:17:31,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:31,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-12 15:17:31,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:31,716 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-07-12 15:17:31,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:17:31,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970887165] [2022-07-12 15:17:31,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970887165] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:17:31,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:17:31,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:17:31,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102179356] [2022-07-12 15:17:31,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:17:31,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:17:31,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:17:31,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:17:31,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:17:31,719 INFO L87 Difference]: Start difference. First operand 25631 states and 36534 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-12 15:17:37,276 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-12 15:17:39,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-12 15:17:40,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:17:40,916 INFO L93 Difference]: Finished difference Result 26913 states and 38539 transitions. [2022-07-12 15:17:40,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:17:40,916 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 168 [2022-07-12 15:17:40,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:17:41,000 INFO L225 Difference]: With dead ends: 26913 [2022-07-12 15:17:41,000 INFO L226 Difference]: Without dead ends: 26911 [2022-07-12 15:17:41,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:17:41,012 INFO L413 NwaCegarLoop]: 2270 mSDtfsCounter, 2522 mSDsluCounter, 3075 mSDsCounter, 0 mSdLazyCounter, 3527 mSolverCounterSat, 1572 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2735 SdHoareTripleChecker+Valid, 5345 SdHoareTripleChecker+Invalid, 5101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1572 IncrementalHoareTripleChecker+Valid, 3527 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-07-12 15:17:41,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2735 Valid, 5345 Invalid, 5101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1572 Valid, 3527 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2022-07-12 15:17:41,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26911 states. [2022-07-12 15:17:42,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26911 to 25635. [2022-07-12 15:17:42,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25635 states, 16382 states have (on average 1.2735929678915883) internal successors, (20864), 17102 states have internal predecessors, (20864), 7815 states have call successors, (7815), 1438 states have call predecessors, (7815), 1435 states have return successors, (7858), 7558 states have call predecessors, (7858), 7812 states have call successors, (7858) [2022-07-12 15:17:42,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25635 states to 25635 states and 36537 transitions. [2022-07-12 15:17:42,250 INFO L78 Accepts]: Start accepts. Automaton has 25635 states and 36537 transitions. Word has length 168 [2022-07-12 15:17:42,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:17:42,250 INFO L495 AbstractCegarLoop]: Abstraction has 25635 states and 36537 transitions. [2022-07-12 15:17:42,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-12 15:17:42,250 INFO L276 IsEmpty]: Start isEmpty. Operand 25635 states and 36537 transitions. [2022-07-12 15:17:42,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-07-12 15:17:42,252 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:17:42,252 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 8, 8, 6, 6, 6, 4, 4, 4, 4, 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] [2022-07-12 15:17:42,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-12 15:17:42,252 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:17:42,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:17:42,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1505550806, now seen corresponding path program 1 times [2022-07-12 15:17:42,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:17:42,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156992339] [2022-07-12 15:17:42,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:17:42,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:17:42,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:42,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:17:42,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:42,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:42,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:42,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:17:42,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:42,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:42,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:42,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:17:42,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:42,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:42,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:42,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:17:42,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:42,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:42,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:42,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 15:17:42,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:42,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 15:17:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:42,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 15:17:42,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:42,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 15:17:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:42,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 15:17:42,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:42,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:42,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:42,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 15:17:42,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:42,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:17:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:42,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 15:17:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:42,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 15:17:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:42,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 15:17:42,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:42,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-12 15:17:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:42,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 15:17:42,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:42,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 15:17:42,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:42,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 15:17:42,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:42,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-12 15:17:42,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:42,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-12 15:17:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:42,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-12 15:17:42,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:42,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-12 15:17:42,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:42,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-12 15:17:42,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:42,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-12 15:17:42,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:42,428 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2022-07-12 15:17:42,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:17:42,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156992339] [2022-07-12 15:17:42,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156992339] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:17:42,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:17:42,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:17:42,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284474817] [2022-07-12 15:17:42,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:17:42,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:17:42,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:17:42,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:17:42,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:17:42,430 INFO L87 Difference]: Start difference. First operand 25635 states and 36537 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, (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) [2022-07-12 15:17:47,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:17:47,400 INFO L93 Difference]: Finished difference Result 26917 states and 38542 transitions. [2022-07-12 15:17:47,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:17:47,401 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, (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 191 [2022-07-12 15:17:47,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:17:47,488 INFO L225 Difference]: With dead ends: 26917 [2022-07-12 15:17:47,488 INFO L226 Difference]: Without dead ends: 26913 [2022-07-12 15:17:47,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:17:47,508 INFO L413 NwaCegarLoop]: 2271 mSDtfsCounter, 2513 mSDsluCounter, 3078 mSDsCounter, 0 mSdLazyCounter, 3529 mSolverCounterSat, 1571 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2723 SdHoareTripleChecker+Valid, 5349 SdHoareTripleChecker+Invalid, 5100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1571 IncrementalHoareTripleChecker+Valid, 3529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:17:47,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2723 Valid, 5349 Invalid, 5100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1571 Valid, 3529 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-07-12 15:17:47,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26913 states. [2022-07-12 15:17:48,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26913 to 25637. [2022-07-12 15:17:48,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25637 states, 16384 states have (on average 1.27349853515625) internal successors, (20865), 17103 states have internal predecessors, (20865), 7815 states have call successors, (7815), 1439 states have call predecessors, (7815), 1435 states have return successors, (7858), 7558 states have call predecessors, (7858), 7812 states have call successors, (7858) [2022-07-12 15:17:48,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25637 states to 25637 states and 36538 transitions. [2022-07-12 15:17:48,590 INFO L78 Accepts]: Start accepts. Automaton has 25637 states and 36538 transitions. Word has length 191 [2022-07-12 15:17:48,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:17:48,591 INFO L495 AbstractCegarLoop]: Abstraction has 25637 states and 36538 transitions. [2022-07-12 15:17:48,591 INFO L496 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, (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) [2022-07-12 15:17:48,591 INFO L276 IsEmpty]: Start isEmpty. Operand 25637 states and 36538 transitions. [2022-07-12 15:17:48,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-07-12 15:17:48,592 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:17:48,593 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 8, 8, 6, 6, 6, 4, 4, 4, 4, 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] [2022-07-12 15:17:48,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-12 15:17:48,593 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:17:48,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:17:48,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1962924606, now seen corresponding path program 1 times [2022-07-12 15:17:48,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:17:48,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060077656] [2022-07-12 15:17:48,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:17:48,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:17:48,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:48,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:17:48,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:48,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:48,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:48,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:17:48,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:48,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:48,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:48,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:17:48,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:48,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:48,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:48,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:17:48,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:48,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:48,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:48,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 15:17:48,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:48,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 15:17:48,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:48,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 15:17:48,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:48,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 15:17:48,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:48,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 15:17:48,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:48,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:48,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:48,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 15:17:48,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:48,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:17:48,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:48,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 15:17:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:48,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 15:17:48,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:48,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 15:17:48,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:48,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-12 15:17:48,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:48,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 15:17:48,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:48,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 15:17:48,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:48,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 15:17:48,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:48,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-12 15:17:48,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:48,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-12 15:17:48,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:48,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-12 15:17:48,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:48,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-12 15:17:48,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:48,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-12 15:17:48,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:48,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-12 15:17:48,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:48,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-07-12 15:17:48,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:48,803 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2022-07-12 15:17:48,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:17:48,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060077656] [2022-07-12 15:17:48,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060077656] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:17:48,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:17:48,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:17:48,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395827466] [2022-07-12 15:17:48,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:17:48,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:17:48,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:17:48,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:17:48,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:17:48,806 INFO L87 Difference]: Start difference. First operand 25637 states and 36538 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, (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) [2022-07-12 15:17:54,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-12 15:17:56,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:17:56,116 INFO L93 Difference]: Finished difference Result 26913 states and 38538 transitions. [2022-07-12 15:17:56,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:17:56,118 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, (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 196 [2022-07-12 15:17:56,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:17:56,310 INFO L225 Difference]: With dead ends: 26913 [2022-07-12 15:17:56,310 INFO L226 Difference]: Without dead ends: 26689 [2022-07-12 15:17:56,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:17:56,319 INFO L413 NwaCegarLoop]: 2270 mSDtfsCounter, 2505 mSDsluCounter, 3082 mSDsCounter, 0 mSdLazyCounter, 3523 mSolverCounterSat, 1570 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2715 SdHoareTripleChecker+Valid, 5352 SdHoareTripleChecker+Invalid, 5094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1570 IncrementalHoareTripleChecker+Valid, 3523 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-07-12 15:17:56,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2715 Valid, 5352 Invalid, 5094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1570 Valid, 3523 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-07-12 15:17:56,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26689 states. [2022-07-12 15:17:57,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26689 to 25413. [2022-07-12 15:17:57,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25413 states, 16242 states have (on average 1.2730575052333457) internal successors, (20677), 16937 states have internal predecessors, (20677), 7748 states have call successors, (7748), 1423 states have call predecessors, (7748), 1421 states have return successors, (7794), 7516 states have call predecessors, (7794), 7748 states have call successors, (7794) [2022-07-12 15:17:57,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25413 states to 25413 states and 36219 transitions. [2022-07-12 15:17:57,479 INFO L78 Accepts]: Start accepts. Automaton has 25413 states and 36219 transitions. Word has length 196 [2022-07-12 15:17:57,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:17:57,479 INFO L495 AbstractCegarLoop]: Abstraction has 25413 states and 36219 transitions. [2022-07-12 15:17:57,479 INFO L496 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, (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) [2022-07-12 15:17:57,480 INFO L276 IsEmpty]: Start isEmpty. Operand 25413 states and 36219 transitions. [2022-07-12 15:17:57,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-07-12 15:17:57,481 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:17:57,481 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 8, 8, 8, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:17:57,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-12 15:17:57,482 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:17:57,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:17:57,482 INFO L85 PathProgramCache]: Analyzing trace with hash -968498435, now seen corresponding path program 1 times [2022-07-12 15:17:57,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:17:57,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391690610] [2022-07-12 15:17:57,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:17:57,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:17:57,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:57,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:17:57,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:57,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:57,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:57,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:17:57,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:57,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:57,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:57,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:17:57,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:57,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:57,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:57,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:17:57,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:57,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:57,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:57,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 15:17:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:57,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 15:17:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:57,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 15:17:57,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:57,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 15:17:57,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:57,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 15:17:57,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:57,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 15:17:57,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:57,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:57,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:57,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-12 15:17:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:57,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 15:17:57,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:57,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-12 15:17:57,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:57,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:57,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:57,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:17:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:57,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:17:57,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:57,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-12 15:17:57,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:57,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:17:57,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:57,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:17:57,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:57,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:17:57,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:57,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 15:17:57,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:57,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 15:17:57,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:57,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-12 15:17:57,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:17:57,667 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-12 15:17:57,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:17:57,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391690610] [2022-07-12 15:17:57,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391690610] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:17:57,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:17:57,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:17:57,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316204446] [2022-07-12 15:17:57,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:17:57,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:17:57,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:17:57,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:17:57,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:17:57,670 INFO L87 Difference]: Start difference. First operand 25413 states and 36219 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-12 15:18:03,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:18:03,419 INFO L93 Difference]: Finished difference Result 57921 states and 82741 transitions. [2022-07-12 15:18:03,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:18:03,420 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 216 [2022-07-12 15:18:03,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:18:03,557 INFO L225 Difference]: With dead ends: 57921 [2022-07-12 15:18:03,557 INFO L226 Difference]: Without dead ends: 32519 [2022-07-12 15:18:03,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:18:03,647 INFO L413 NwaCegarLoop]: 3496 mSDtfsCounter, 1766 mSDsluCounter, 2219 mSDsCounter, 0 mSdLazyCounter, 2420 mSolverCounterSat, 1158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2205 SdHoareTripleChecker+Valid, 5715 SdHoareTripleChecker+Invalid, 3578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1158 IncrementalHoareTripleChecker+Valid, 2420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:18:03,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2205 Valid, 5715 Invalid, 3578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1158 Valid, 2420 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-07-12 15:18:03,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32519 states. [2022-07-12 15:18:04,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32519 to 30857. [2022-07-12 15:18:04,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30857 states, 19737 states have (on average 1.2716724932867203) internal successors, (25099), 20578 states have internal predecessors, (25099), 9353 states have call successors, (9353), 1767 states have call predecessors, (9353), 1765 states have return successors, (9399), 9081 states have call predecessors, (9399), 9353 states have call successors, (9399) [2022-07-12 15:18:05,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30857 states to 30857 states and 43851 transitions. [2022-07-12 15:18:05,030 INFO L78 Accepts]: Start accepts. Automaton has 30857 states and 43851 transitions. Word has length 216 [2022-07-12 15:18:05,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:18:05,031 INFO L495 AbstractCegarLoop]: Abstraction has 30857 states and 43851 transitions. [2022-07-12 15:18:05,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-12 15:18:05,031 INFO L276 IsEmpty]: Start isEmpty. Operand 30857 states and 43851 transitions. [2022-07-12 15:18:05,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-07-12 15:18:05,033 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:18:05,033 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 8, 8, 8, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:18:05,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-12 15:18:05,033 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:18:05,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:18:05,034 INFO L85 PathProgramCache]: Analyzing trace with hash -693738821, now seen corresponding path program 1 times [2022-07-12 15:18:05,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:18:05,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165748957] [2022-07-12 15:18:05,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:18:05,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:18:05,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:05,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:18:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:05,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:05,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:05,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:18:05,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:05,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:05,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:05,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:18:05,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:05,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:05,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:18:05,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:05,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:05,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:05,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 15:18:05,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:05,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 15:18:05,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:05,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 15:18:05,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:05,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 15:18:05,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:05,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 15:18:05,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:05,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 15:18:05,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:05,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:05,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:05,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-12 15:18:05,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:05,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 15:18:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:05,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-12 15:18:05,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:05,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:05,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:05,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:18:05,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:05,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:18:05,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:05,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-12 15:18:05,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:05,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:05,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:18:05,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:05,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:18:05,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:05,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 15:18:05,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:05,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 15:18:05,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:05,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-12 15:18:05,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:05,187 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-12 15:18:05,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:18:05,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165748957] [2022-07-12 15:18:05,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165748957] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:18:05,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:18:05,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:18:05,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339526453] [2022-07-12 15:18:05,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:18:05,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:18:05,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:18:05,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:18:05,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:18:05,189 INFO L87 Difference]: Start difference. First operand 30857 states and 43851 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-12 15:18:10,783 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-12 15:18:13,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:18:13,894 INFO L93 Difference]: Finished difference Result 74180 states and 106059 transitions. [2022-07-12 15:18:13,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:18:13,894 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 216 [2022-07-12 15:18:13,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:18:14,076 INFO L225 Difference]: With dead ends: 74180 [2022-07-12 15:18:14,076 INFO L226 Difference]: Without dead ends: 43377 [2022-07-12 15:18:14,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:18:14,179 INFO L413 NwaCegarLoop]: 3757 mSDtfsCounter, 2337 mSDsluCounter, 1878 mSDsCounter, 0 mSdLazyCounter, 2466 mSolverCounterSat, 1482 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2850 SdHoareTripleChecker+Valid, 5635 SdHoareTripleChecker+Invalid, 3949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1482 IncrementalHoareTripleChecker+Valid, 2466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-07-12 15:18:14,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2850 Valid, 5635 Invalid, 3949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1482 Valid, 2466 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-07-12 15:18:14,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43377 states. [2022-07-12 15:18:16,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43377 to 41217. [2022-07-12 15:18:16,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41217 states, 26053 states have (on average 1.2714082831151883) internal successors, (33124), 27216 states have internal predecessors, (33124), 12821 states have call successors, (12821), 2343 states have call predecessors, (12821), 2341 states have return successors, (12863), 12437 states have call predecessors, (12863), 12821 states have call successors, (12863) [2022-07-12 15:18:16,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41217 states to 41217 states and 58808 transitions. [2022-07-12 15:18:16,368 INFO L78 Accepts]: Start accepts. Automaton has 41217 states and 58808 transitions. Word has length 216 [2022-07-12 15:18:16,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:18:16,369 INFO L495 AbstractCegarLoop]: Abstraction has 41217 states and 58808 transitions. [2022-07-12 15:18:16,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-12 15:18:16,369 INFO L276 IsEmpty]: Start isEmpty. Operand 41217 states and 58808 transitions. [2022-07-12 15:18:16,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2022-07-12 15:18:16,372 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:18:16,372 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:18:16,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-12 15:18:16,373 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:18:16,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:18:16,373 INFO L85 PathProgramCache]: Analyzing trace with hash 499296066, now seen corresponding path program 1 times [2022-07-12 15:18:16,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:18:16,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456791201] [2022-07-12 15:18:16,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:18:16,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:18:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:18:16,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:16,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:18:16,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:16,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:18:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:16,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:18:16,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:16,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 15:18:16,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 15:18:16,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 15:18:16,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 15:18:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 15:18:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 15:18:16,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:16,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-12 15:18:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 15:18:16,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-12 15:18:16,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:16,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:18:16,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:18:16,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-12 15:18:16,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:16,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:18:16,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:18:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 15:18:16,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 15:18:16,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-12 15:18:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-12 15:18:16,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:16,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-12 15:18:16,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-12 15:18:16,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-12 15:18:16,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:16,545 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 457 trivial. 0 not checked. [2022-07-12 15:18:16,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:18:16,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456791201] [2022-07-12 15:18:16,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456791201] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:18:16,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:18:16,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:18:16,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168265426] [2022-07-12 15:18:16,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:18:16,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:18:16,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:18:16,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:18:16,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:18:16,547 INFO L87 Difference]: Start difference. First operand 41217 states and 58808 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-12 15:18:21,957 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-12 15:18:25,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:18:25,236 INFO L93 Difference]: Finished difference Result 90386 states and 129255 transitions. [2022-07-12 15:18:25,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:18:25,238 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 270 [2022-07-12 15:18:25,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:18:25,431 INFO L225 Difference]: With dead ends: 90386 [2022-07-12 15:18:25,431 INFO L226 Difference]: Without dead ends: 49237 [2022-07-12 15:18:25,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:18:25,547 INFO L413 NwaCegarLoop]: 3379 mSDtfsCounter, 1773 mSDsluCounter, 2132 mSDsCounter, 0 mSdLazyCounter, 2421 mSolverCounterSat, 1178 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2215 SdHoareTripleChecker+Valid, 5511 SdHoareTripleChecker+Invalid, 3600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1178 IncrementalHoareTripleChecker+Valid, 2421 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-07-12 15:18:25,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2215 Valid, 5511 Invalid, 3600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1178 Valid, 2421 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-07-12 15:18:25,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49237 states. [2022-07-12 15:18:27,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49237 to 46699. [2022-07-12 15:18:27,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46699 states, 29587 states have (on average 1.2706932098556798) internal successors, (37596), 30896 states have internal predecessors, (37596), 14429 states have call successors, (14429), 2683 states have call predecessors, (14429), 2681 states have return successors, (14471), 14005 states have call predecessors, (14471), 14429 states have call successors, (14471) [2022-07-12 15:18:28,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46699 states to 46699 states and 66496 transitions. [2022-07-12 15:18:28,135 INFO L78 Accepts]: Start accepts. Automaton has 46699 states and 66496 transitions. Word has length 270 [2022-07-12 15:18:28,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:18:28,136 INFO L495 AbstractCegarLoop]: Abstraction has 46699 states and 66496 transitions. [2022-07-12 15:18:28,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-12 15:18:28,136 INFO L276 IsEmpty]: Start isEmpty. Operand 46699 states and 66496 transitions. [2022-07-12 15:18:28,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2022-07-12 15:18:28,139 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:18:28,139 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:18:28,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-12 15:18:28,139 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:18:28,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:18:28,140 INFO L85 PathProgramCache]: Analyzing trace with hash 774055680, now seen corresponding path program 1 times [2022-07-12 15:18:28,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:18:28,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196966316] [2022-07-12 15:18:28,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:18:28,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:18:28,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:18:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:28,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:18:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:28,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:18:28,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:18:28,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:28,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 15:18:28,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 15:18:28,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 15:18:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 15:18:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 15:18:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 15:18:28,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:28,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-12 15:18:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 15:18:28,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-12 15:18:28,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:28,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:18:28,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:18:28,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-12 15:18:28,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:28,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:18:28,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:18:28,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 15:18:28,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 15:18:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-12 15:18:28,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-12 15:18:28,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:28,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-12 15:18:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-12 15:18:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-12 15:18:28,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:28,446 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 457 trivial. 0 not checked. [2022-07-12 15:18:28,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:18:28,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196966316] [2022-07-12 15:18:28,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196966316] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:18:28,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:18:28,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:18:28,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387908085] [2022-07-12 15:18:28,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:18:28,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:18:28,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:18:28,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:18:28,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:18:28,449 INFO L87 Difference]: Start difference. First operand 46699 states and 66496 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-12 15:18:35,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:18:35,294 INFO L93 Difference]: Finished difference Result 101824 states and 145335 transitions. [2022-07-12 15:18:35,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:18:35,294 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 270 [2022-07-12 15:18:35,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:18:35,488 INFO L225 Difference]: With dead ends: 101824 [2022-07-12 15:18:35,488 INFO L226 Difference]: Without dead ends: 55193 [2022-07-12 15:18:35,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:18:35,627 INFO L413 NwaCegarLoop]: 3498 mSDtfsCounter, 1787 mSDsluCounter, 2225 mSDsCounter, 0 mSdLazyCounter, 2425 mSolverCounterSat, 1161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2228 SdHoareTripleChecker+Valid, 5723 SdHoareTripleChecker+Invalid, 3586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1161 IncrementalHoareTripleChecker+Valid, 2425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:18:35,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2228 Valid, 5723 Invalid, 3586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1161 Valid, 2425 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-07-12 15:18:35,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55193 states. [2022-07-12 15:18:38,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55193 to 52277. [2022-07-12 15:18:38,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52277 states, 33201 states have (on average 1.2699617481401162) internal successors, (42164), 34656 states have internal predecessors, (42164), 16045 states have call successors, (16045), 3031 states have call predecessors, (16045), 3029 states have return successors, (16087), 15581 states have call predecessors, (16087), 16045 states have call successors, (16087) [2022-07-12 15:18:38,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52277 states to 52277 states and 74296 transitions. [2022-07-12 15:18:38,440 INFO L78 Accepts]: Start accepts. Automaton has 52277 states and 74296 transitions. Word has length 270 [2022-07-12 15:18:38,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:18:38,441 INFO L495 AbstractCegarLoop]: Abstraction has 52277 states and 74296 transitions. [2022-07-12 15:18:38,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-12 15:18:38,441 INFO L276 IsEmpty]: Start isEmpty. Operand 52277 states and 74296 transitions. [2022-07-12 15:18:38,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2022-07-12 15:18:38,445 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:18:38,445 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 11, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:18:38,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-12 15:18:38,445 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:18:38,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:18:38,446 INFO L85 PathProgramCache]: Analyzing trace with hash 330673094, now seen corresponding path program 1 times [2022-07-12 15:18:38,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:18:38,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395109791] [2022-07-12 15:18:38,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:18:38,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:18:38,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:18:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:18:38,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:38,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:18:38,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:38,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:18:38,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:38,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 15:18:38,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 15:18:38,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 15:18:38,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 15:18:38,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 15:18:38,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 15:18:38,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-12 15:18:38,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 15:18:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-12 15:18:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:38,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:18:38,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:18:38,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-12 15:18:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:38,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:18:38,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:18:38,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 15:18:38,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 15:18:38,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-12 15:18:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-12 15:18:38,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:38,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-12 15:18:38,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-12 15:18:38,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-07-12 15:18:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-12 15:18:38,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:38,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2022-07-12 15:18:38,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-07-12 15:18:38,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:38,694 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked. [2022-07-12 15:18:38,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:18:38,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395109791] [2022-07-12 15:18:38,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395109791] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:18:38,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:18:38,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:18:38,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071892123] [2022-07-12 15:18:38,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:18:38,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:18:38,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:18:38,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:18:38,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:18:38,696 INFO L87 Difference]: Start difference. First operand 52277 states and 74296 transitions. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-12 15:18:45,673 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-12 15:18:48,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:18:48,076 INFO L93 Difference]: Finished difference Result 55185 states and 78809 transitions. [2022-07-12 15:18:48,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:18:48,077 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 311 [2022-07-12 15:18:48,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:18:48,239 INFO L225 Difference]: With dead ends: 55185 [2022-07-12 15:18:48,239 INFO L226 Difference]: Without dead ends: 55183 [2022-07-12 15:18:48,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-12 15:18:48,263 INFO L413 NwaCegarLoop]: 2485 mSDtfsCounter, 2037 mSDsluCounter, 3411 mSDsCounter, 0 mSdLazyCounter, 4782 mSolverCounterSat, 1394 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2267 SdHoareTripleChecker+Valid, 5896 SdHoareTripleChecker+Invalid, 6177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1394 IncrementalHoareTripleChecker+Valid, 4782 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-07-12 15:18:48,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2267 Valid, 5896 Invalid, 6177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1394 Valid, 4782 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-07-12 15:18:48,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55183 states. [2022-07-12 15:18:50,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55183 to 52275. [2022-07-12 15:18:50,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52275 states, 33200 states have (on average 1.2685843373493977) internal successors, (42117), 34654 states have internal predecessors, (42117), 16045 states have call successors, (16045), 3031 states have call predecessors, (16045), 3029 states have return successors, (16087), 15581 states have call predecessors, (16087), 16045 states have call successors, (16087) [2022-07-12 15:18:50,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52275 states to 52275 states and 74249 transitions. [2022-07-12 15:18:50,557 INFO L78 Accepts]: Start accepts. Automaton has 52275 states and 74249 transitions. Word has length 311 [2022-07-12 15:18:50,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:18:50,557 INFO L495 AbstractCegarLoop]: Abstraction has 52275 states and 74249 transitions. [2022-07-12 15:18:50,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-12 15:18:50,557 INFO L276 IsEmpty]: Start isEmpty. Operand 52275 states and 74249 transitions. [2022-07-12 15:18:50,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-07-12 15:18:50,566 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:18:50,566 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 12, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:18:50,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-12 15:18:50,567 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:18:50,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:18:50,567 INFO L85 PathProgramCache]: Analyzing trace with hash 2120896043, now seen corresponding path program 1 times [2022-07-12 15:18:50,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:18:50,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477926717] [2022-07-12 15:18:50,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:18:50,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:18:50,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:18:50,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:50,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:18:50,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:18:50,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:50,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:18:50,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:50,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 15:18:50,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 15:18:50,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 15:18:50,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 15:18:50,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 15:18:50,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 15:18:50,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:50,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-12 15:18:50,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 15:18:50,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-12 15:18:50,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:50,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:18:50,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:18:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-12 15:18:50,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:50,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:18:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:18:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 15:18:50,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 15:18:50,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-12 15:18:50,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-12 15:18:50,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:50,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-12 15:18:50,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-12 15:18:50,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-07-12 15:18:50,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-12 15:18:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:18:50,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2022-07-12 15:18:50,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-07-12 15:18:50,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-07-12 15:18:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 15:18:50,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-12 15:18:50,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-07-12 15:18:50,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-12 15:18:50,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-12 15:18:50,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2022-07-12 15:18:50,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-07-12 15:18:50,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-07-12 15:18:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-07-12 15:18:50,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-07-12 15:18:50,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-07-12 15:18:50,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2022-07-12 15:18:50,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2022-07-12 15:18:50,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-07-12 15:18:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-07-12 15:18:50,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-07-12 15:18:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:18:50,857 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 761 trivial. 0 not checked. [2022-07-12 15:18:50,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:18:50,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477926717] [2022-07-12 15:18:50,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477926717] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:18:50,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:18:50,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:18:50,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367590574] [2022-07-12 15:18:50,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:18:50,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:18:50,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:18:50,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:18:50,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:18:50,859 INFO L87 Difference]: Start difference. First operand 52275 states and 74249 transitions. Second operand has 6 states, 5 states have (on average 27.6) internal successors, (138), 3 states have internal predecessors, (138), 3 states have call successors, (48), 5 states have call predecessors, (48), 1 states have return successors, (43), 2 states have call predecessors, (43), 3 states have call successors, (43) [2022-07-12 15:18:58,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-12 15:19:02,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:19:02,292 INFO L93 Difference]: Finished difference Result 110282 states and 157818 transitions. [2022-07-12 15:19:02,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 15:19:02,292 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 27.6) internal successors, (138), 3 states have internal predecessors, (138), 3 states have call successors, (48), 5 states have call predecessors, (48), 1 states have return successors, (43), 2 states have call predecessors, (43), 3 states have call successors, (43) Word has length 397 [2022-07-12 15:19:02,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:19:02,540 INFO L225 Difference]: With dead ends: 110282 [2022-07-12 15:19:02,540 INFO L226 Difference]: Without dead ends: 58075 [2022-07-12 15:19:02,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:19:02,708 INFO L413 NwaCegarLoop]: 2086 mSDtfsCounter, 2381 mSDsluCounter, 2874 mSDsCounter, 0 mSdLazyCounter, 3370 mSolverCounterSat, 2825 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2414 SdHoareTripleChecker+Valid, 4960 SdHoareTripleChecker+Invalid, 6196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2825 IncrementalHoareTripleChecker+Valid, 3370 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-07-12 15:19:02,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2414 Valid, 4960 Invalid, 6196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2825 Valid, 3370 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2022-07-12 15:19:02,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58075 states. [2022-07-12 15:19:05,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58075 to 52351. [2022-07-12 15:19:05,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52351 states, 33274 states have (on average 1.2679870168900642) internal successors, (42191), 34728 states have internal predecessors, (42191), 16045 states have call successors, (16045), 3031 states have call predecessors, (16045), 3031 states have return successors, (16089), 15583 states have call predecessors, (16089), 16045 states have call successors, (16089) [2022-07-12 15:19:05,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52351 states to 52351 states and 74325 transitions. [2022-07-12 15:19:05,541 INFO L78 Accepts]: Start accepts. Automaton has 52351 states and 74325 transitions. Word has length 397 [2022-07-12 15:19:05,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:19:05,541 INFO L495 AbstractCegarLoop]: Abstraction has 52351 states and 74325 transitions. [2022-07-12 15:19:05,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 27.6) internal successors, (138), 3 states have internal predecessors, (138), 3 states have call successors, (48), 5 states have call predecessors, (48), 1 states have return successors, (43), 2 states have call predecessors, (43), 3 states have call successors, (43) [2022-07-12 15:19:05,541 INFO L276 IsEmpty]: Start isEmpty. Operand 52351 states and 74325 transitions. [2022-07-12 15:19:05,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2022-07-12 15:19:05,550 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:05,550 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 12, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:19:05,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-12 15:19:05,550 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:19:05,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:05,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1354695993, now seen corresponding path program 1 times [2022-07-12 15:19:05,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:19:05,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222350556] [2022-07-12 15:19:05,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:05,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:19:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:19:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:05,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:19:05,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:05,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:19:05,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:05,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:19:05,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:05,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 15:19:05,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 15:19:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 15:19:05,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 15:19:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 15:19:05,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 15:19:05,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:05,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-12 15:19:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 15:19:05,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-12 15:19:05,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:19:05,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:19:05,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-12 15:19:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:05,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:19:05,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:19:05,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 15:19:05,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 15:19:05,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-12 15:19:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-12 15:19:05,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-12 15:19:05,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-12 15:19:05,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-07-12 15:19:05,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-12 15:19:05,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:19:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2022-07-12 15:19:05,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-07-12 15:19:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-07-12 15:19:05,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 15:19:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-12 15:19:05,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-07-12 15:19:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-12 15:19:05,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-12 15:19:05,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2022-07-12 15:19:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-07-12 15:19:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-07-12 15:19:05,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-07-12 15:19:05,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-07-12 15:19:05,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-07-12 15:19:05,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-07-12 15:19:05,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-07-12 15:19:05,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2022-07-12 15:19:05,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-07-12 15:19:05,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-07-12 15:19:05,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-07-12 15:19:05,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:05,816 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 773 trivial. 0 not checked. [2022-07-12 15:19:05,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:19:05,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222350556] [2022-07-12 15:19:05,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222350556] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 15:19:05,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173347047] [2022-07-12 15:19:05,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:05,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 15:19:05,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 15:19:05,824 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 15:19:05,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 15:19:06,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:06,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 2655 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 15:19:06,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:19:06,562 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 42 proven. 1 refuted. 0 times theorem prover too weak. 731 trivial. 0 not checked. [2022-07-12 15:19:06,563 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:19:06,746 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 773 trivial. 0 not checked. [2022-07-12 15:19:06,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173347047] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 15:19:06,746 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 15:19:06,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2022-07-12 15:19:06,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567369098] [2022-07-12 15:19:06,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 15:19:06,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 15:19:06,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:19:06,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 15:19:06,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:19:06,748 INFO L87 Difference]: Start difference. First operand 52351 states and 74325 transitions. Second operand has 10 states, 9 states have (on average 17.333333333333332) internal successors, (156), 7 states have internal predecessors, (156), 6 states have call successors, (65), 5 states have call predecessors, (65), 2 states have return successors, (52), 5 states have call predecessors, (52), 6 states have call successors, (52) [2022-07-12 15:19:09,585 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 15:19:18,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-12 15:19:20,970 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-12 15:19:23,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-12 15:19:27,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:19:27,119 INFO L93 Difference]: Finished difference Result 110934 states and 158758 transitions. [2022-07-12 15:19:27,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 15:19:27,119 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 17.333333333333332) internal successors, (156), 7 states have internal predecessors, (156), 6 states have call successors, (65), 5 states have call predecessors, (65), 2 states have return successors, (52), 5 states have call predecessors, (52), 6 states have call successors, (52) Word has length 403 [2022-07-12 15:19:27,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:19:27,365 INFO L225 Difference]: With dead ends: 110934 [2022-07-12 15:19:27,365 INFO L226 Difference]: Without dead ends: 58651 [2022-07-12 15:19:27,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 926 GetRequests, 914 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-07-12 15:19:27,541 INFO L413 NwaCegarLoop]: 2090 mSDtfsCounter, 2392 mSDsluCounter, 5777 mSDsCounter, 0 mSdLazyCounter, 8280 mSolverCounterSat, 2837 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2429 SdHoareTripleChecker+Valid, 7867 SdHoareTripleChecker+Invalid, 11121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2837 IncrementalHoareTripleChecker+Valid, 8280 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2022-07-12 15:19:27,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2429 Valid, 7867 Invalid, 11121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2837 Valid, 8280 Invalid, 4 Unknown, 0 Unchecked, 17.2s Time] [2022-07-12 15:19:27,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58651 states.