./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-irda-vlsi_ir.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.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 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 11:11:45,997 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 11:11:46,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 11:11:46,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 11:11:46,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 11:11:46,050 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 11:11:46,051 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 11:11:46,053 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 11:11:46,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 11:11:46,058 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 11:11:46,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 11:11:46,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 11:11:46,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 11:11:46,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 11:11:46,063 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 11:11:46,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 11:11:46,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 11:11:46,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 11:11:46,069 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 11:11:46,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 11:11:46,076 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 11:11:46,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 11:11:46,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 11:11:46,079 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 11:11:46,082 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 11:11:46,082 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 11:11:46,083 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 11:11:46,084 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 11:11:46,084 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 11:11:46,085 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 11:11:46,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 11:11:46,086 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 11:11:46,087 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 11:11:46,088 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 11:11:46,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 11:11:46,089 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 11:11:46,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 11:11:46,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 11:11:46,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 11:11:46,090 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 11:11:46,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 11:11:46,091 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 11:11:46,117 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 11:11:46,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 11:11:46,118 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 11:11:46,118 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 11:11:46,119 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 11:11:46,119 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 11:11:46,119 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 11:11:46,120 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 11:11:46,120 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 11:11:46,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 11:11:46,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 11:11:46,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 11:11:46,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 11:11:46,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 11:11:46,121 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 11:11:46,121 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 11:11:46,122 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 11:11:46,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 11:11:46,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 11:11:46,122 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 11:11:46,122 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 11:11:46,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 11:11:46,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 11:11:46,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 11:11:46,123 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 11:11:46,123 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 11:11:46,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 11:11:46,124 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 11:11:46,124 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 11:11:46,125 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 11:11:46,125 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 11:11:46,125 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 [2021-12-18 11:11:46,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 11:11:46,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 11:11:46,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 11:11:46,374 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 11:11:46,374 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 11:11:46,375 INFO L432 ainManager$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-irda-vlsi_ir.cil.i [2021-12-18 11:11:46,437 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a5636cdc/da874de5f0be44bfbc9c41ff80ea405c/FLAGdbb979d3c [2021-12-18 11:11:47,088 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 11:11:47,089 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-irda-vlsi_ir.cil.i [2021-12-18 11:11:47,136 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a5636cdc/da874de5f0be44bfbc9c41ff80ea405c/FLAGdbb979d3c [2021-12-18 11:11:47,452 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a5636cdc/da874de5f0be44bfbc9c41ff80ea405c [2021-12-18 11:11:47,454 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 11:11:47,455 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 11:11:47,457 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 11:11:47,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 11:11:47,459 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 11:11:47,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:11:47" (1/1) ... [2021-12-18 11:11:47,460 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71030735 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:11:47, skipping insertion in model container [2021-12-18 11:11:47,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:11:47" (1/1) ... [2021-12-18 11:11:47,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 11:11:47,581 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 11:11:49,737 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-irda-vlsi_ir.cil.i[347848,347861] [2021-12-18 11:11:49,739 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-irda-vlsi_ir.cil.i[348017,348030] [2021-12-18 11:11:49,744 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-irda-vlsi_ir.cil.i[348184,348197] [2021-12-18 11:11:49,745 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-irda-vlsi_ir.cil.i[348352,348365] [2021-12-18 11:11:49,777 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 11:11:49,832 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 11:11:50,175 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-irda-vlsi_ir.cil.i[347848,347861] [2021-12-18 11:11:50,176 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-irda-vlsi_ir.cil.i[348017,348030] [2021-12-18 11:11:50,176 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-irda-vlsi_ir.cil.i[348184,348197] [2021-12-18 11:11:50,177 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-irda-vlsi_ir.cil.i[348352,348365] [2021-12-18 11:11:50,186 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 11:11:50,362 INFO L208 MainTranslator]: Completed translation [2021-12-18 11:11:50,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:11:50 WrapperNode [2021-12-18 11:11:50,363 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 11:11:50,364 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 11:11:50,365 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 11:11:50,365 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 11:11:50,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:11:50" (1/1) ... [2021-12-18 11:11:50,504 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:11:50" (1/1) ... [2021-12-18 11:11:50,674 INFO L137 Inliner]: procedures = 451, calls = 2209, calls flagged for inlining = 206, calls inlined = 184, statements flattened = 5139 [2021-12-18 11:11:50,675 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 11:11:50,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 11:11:50,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 11:11:50,677 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 11:11:50,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:11:50" (1/1) ... [2021-12-18 11:11:50,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:11:50" (1/1) ... [2021-12-18 11:11:50,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:11:50" (1/1) ... [2021-12-18 11:11:50,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:11:50" (1/1) ... [2021-12-18 11:11:50,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:11:50" (1/1) ... [2021-12-18 11:11:50,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:11:50" (1/1) ... [2021-12-18 11:11:50,927 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:11:50" (1/1) ... [2021-12-18 11:11:50,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 11:11:50,963 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 11:11:50,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 11:11:50,965 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 11:11:50,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:11:50" (1/1) ... [2021-12-18 11:11:50,972 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 11:11:50,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 11:11:51,009 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-18 11:11:51,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-18 11:11:51,057 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-18 11:11:51,057 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-18 11:11:51,058 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-18 11:11:51,058 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-18 11:11:51,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 11:11:51,058 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 11:11:51,058 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-18 11:11:51,058 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-18 11:11:51,058 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_count [2021-12-18 11:11:51,059 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_count [2021-12-18 11:11:51,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 11:11:51,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 11:11:51,059 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_status [2021-12-18 11:11:51,059 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_status [2021-12-18 11:11:51,059 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-18 11:11:51,059 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-18 11:11:51,059 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2021-12-18 11:11:51,060 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2021-12-18 11:11:51,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 11:11:51,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 11:11:51,060 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_ring_debug [2021-12-18 11:11:51,060 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_ring_debug [2021-12-18 11:11:51,060 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-18 11:11:51,060 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-18 11:11:51,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_65 [2021-12-18 11:11:51,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_65 [2021-12-18 11:11:51,061 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-18 11:11:51,061 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-18 11:11:51,061 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_close [2021-12-18 11:11:51,061 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_close [2021-12-18 11:11:51,061 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_irda_resume [2021-12-18 11:11:51,062 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_irda_resume [2021-12-18 11:11:51,062 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-18 11:11:51,062 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-18 11:11:51,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-18 11:11:51,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-18 11:11:51,063 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2021-12-18 11:11:51,063 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2021-12-18 11:11:51,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 11:11:51,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 11:11:51,063 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_free_ring [2021-12-18 11:11:51,063 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_free_ring [2021-12-18 11:11:51,063 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-18 11:11:51,063 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-18 11:11:51,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 11:11:51,064 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2021-12-18 11:11:51,064 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2021-12-18 11:11:51,064 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-18 11:11:51,065 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-18 11:11:51,065 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-18 11:11:51,065 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-18 11:11:51,066 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_tx_timeout [2021-12-18 11:11:51,066 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_tx_timeout [2021-12-18 11:11:51,067 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-18 11:11:51,067 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-18 11:11:51,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 11:11:51,067 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_destroy_hwif [2021-12-18 11:11:51,067 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_destroy_hwif [2021-12-18 11:11:51,067 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-18 11:11:51,067 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-18 11:11:51,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 11:11:51,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-18 11:11:51,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-18 11:11:51,068 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_stop_hw [2021-12-18 11:11:51,068 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_stop_hw [2021-12-18 11:11:51,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 11:11:51,069 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-18 11:11:51,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-18 11:11:51,069 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_irda_remove [2021-12-18 11:11:51,069 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_irda_remove [2021-12-18 11:11:51,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 11:11:51,069 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 11:11:51,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-18 11:11:51,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-18 11:11:51,070 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2021-12-18 11:11:51,070 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2021-12-18 11:11:51,070 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_clear_regs [2021-12-18 11:11:51,070 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_clear_regs [2021-12-18 11:11:51,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-18 11:11:51,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-18 11:11:51,070 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-12-18 11:11:51,071 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-12-18 11:11:51,071 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_start_hw [2021-12-18 11:11:51,071 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_start_hw [2021-12-18 11:11:51,072 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-18 11:11:51,072 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-18 11:11:51,072 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-18 11:11:51,072 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-18 11:11:51,073 INFO L130 BoogieDeclarations]: Found specification of procedure rd_activate [2021-12-18 11:11:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_activate [2021-12-18 11:11:51,073 INFO L130 BoogieDeclarations]: Found specification of procedure rd_is_active [2021-12-18 11:11:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_is_active [2021-12-18 11:11:51,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-18 11:11:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-18 11:11:51,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 11:11:51,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-18 11:11:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-18 11:11:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_count [2021-12-18 11:11:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_count [2021-12-18 11:11:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-12-18 11:11:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-12-18 11:11:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 11:11:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-18 11:11:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-18 11:11:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-18 11:11:51,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-18 11:11:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 11:11:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 11:11:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_open [2021-12-18 11:11:51,076 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_open [2021-12-18 11:11:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 11:11:51,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 11:11:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_vlsi_mod_exit_11_2 [2021-12-18 11:11:51,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_vlsi_mod_exit_11_2 [2021-12-18 11:11:51,079 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-18 11:11:51,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-18 11:11:51,080 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-18 11:11:51,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-18 11:11:51,080 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-18 11:11:51,080 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-18 11:11:51,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-18 11:11:51,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-18 11:11:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_reg_debug [2021-12-18 11:11:51,099 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_reg_debug [2021-12-18 11:11:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_set_baud [2021-12-18 11:11:51,099 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_set_baud [2021-12-18 11:11:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 11:11:51,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 11:11:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 11:11:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 11:11:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 11:11:51,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 11:11:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 11:11:51,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 11:11:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-12-18 11:11:51,100 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-12-18 11:11:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2021-12-18 11:11:51,100 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2021-12-18 11:11:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_status [2021-12-18 11:11:51,100 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_status [2021-12-18 11:11:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-18 11:11:51,100 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-18 11:11:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-18 11:11:51,100 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-18 11:11:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 11:11:51,100 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 11:11:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-18 11:11:51,100 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-18 11:11:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure ring_get [2021-12-18 11:11:51,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_get [2021-12-18 11:11:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-18 11:11:51,100 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-18 11:11:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 11:11:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-18 11:11:51,101 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-18 11:11:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 11:11:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure ring_last [2021-12-18 11:11:51,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_last [2021-12-18 11:11:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure ring_put [2021-12-18 11:11:51,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_put [2021-12-18 11:11:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 11:11:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-12-18 11:11:51,101 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-12-18 11:11:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2021-12-18 11:11:51,101 INFO L138 BoogieDeclarations]: Found implementation of procedure do_gettimeofday [2021-12-18 11:11:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-12-18 11:11:51,101 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-12-18 11:11:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-18 11:11:51,101 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-18 11:11:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-18 11:11:51,101 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-18 11:11:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-18 11:11:51,101 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-18 11:11:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-18 11:11:51,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-18 11:11:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-18 11:11:51,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-18 11:11:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_addr_status [2021-12-18 11:11:51,102 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_addr_status [2021-12-18 11:11:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_addr [2021-12-18 11:11:51,102 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_addr [2021-12-18 11:11:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-18 11:11:51,102 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-18 11:11:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-18 11:11:51,102 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-18 11:11:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-18 11:11:51,102 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-18 11:11:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 11:11:51,102 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 11:11:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 11:11:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-12-18 11:11:51,102 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-12-18 11:11:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 11:11:51,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 11:11:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure irlap_close [2021-12-18 11:11:51,102 INFO L138 BoogieDeclarations]: Found implementation of procedure irlap_close [2021-12-18 11:11:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-18 11:11:51,102 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-18 11:11:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-18 11:11:51,102 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-18 11:11:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_process_tx [2021-12-18 11:11:51,103 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_process_tx [2021-12-18 11:11:51,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-18 11:11:51,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-18 11:11:51,103 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_alloc_ring [2021-12-18 11:11:51,103 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_alloc_ring [2021-12-18 11:11:51,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_vlsi_irda_dev [2021-12-18 11:11:51,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_vlsi_irda_dev [2021-12-18 11:11:51,103 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_fill_rx [2021-12-18 11:11:51,103 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_fill_rx [2021-12-18 11:11:51,103 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-18 11:11:51,103 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-18 11:11:51,103 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_process_rx [2021-12-18 11:11:51,103 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_process_rx [2021-12-18 11:11:51,103 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-18 11:11:51,103 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-18 11:11:51,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 11:11:51,103 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-12-18 11:11:51,103 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-12-18 11:11:51,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-18 11:11:51,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-18 11:11:51,103 INFO L130 BoogieDeclarations]: Found specification of procedure ring_first [2021-12-18 11:11:51,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_first [2021-12-18 11:11:51,103 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2021-12-18 11:11:51,103 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2021-12-18 11:11:51,851 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 11:11:51,855 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 11:11:52,156 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 11:11:55,719 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-18 11:11:55,763 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 11:11:55,776 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 11:11:55,777 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-18 11:11:55,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:11:55 BoogieIcfgContainer [2021-12-18 11:11:55,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 11:11:55,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 11:11:55,782 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 11:11:55,784 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 11:11:55,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 11:11:47" (1/3) ... [2021-12-18 11:11:55,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73972c72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:11:55, skipping insertion in model container [2021-12-18 11:11:55,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:11:50" (2/3) ... [2021-12-18 11:11:55,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73972c72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:11:55, skipping insertion in model container [2021-12-18 11:11:55,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:11:55" (3/3) ... [2021-12-18 11:11:55,786 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2021-12-18 11:11:55,790 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 11:11:55,790 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-18 11:11:55,840 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 11:11:55,844 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-18 11:11:55,845 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-18 11:11:55,879 INFO L276 IsEmpty]: Start isEmpty. Operand has 1886 states, 1268 states have (on average 1.2854889589905363) internal successors, (1630), 1294 states have internal predecessors, (1630), 512 states have call successors, (512), 104 states have call predecessors, (512), 103 states have return successors, (505), 502 states have call predecessors, (505), 505 states have call successors, (505) [2021-12-18 11:11:55,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-12-18 11:11:55,889 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:11:55,889 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:11:55,890 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:11:55,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:11:55,894 INFO L85 PathProgramCache]: Analyzing trace with hash -2147203978, now seen corresponding path program 1 times [2021-12-18 11:11:55,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:11:55,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565546650] [2021-12-18 11:11:55,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:11:55,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:11:56,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:11:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:56,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:11:56,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:56,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:11:56,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:56,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:11:56,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:56,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:11:56,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:11:56,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:56,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:11:56,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:56,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:11:56,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:11:56,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:56,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:11:56,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:56,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:11:56,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:56,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 11:11:56,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 11:11:56,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,605 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-12-18 11:11:56,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:11:56,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565546650] [2021-12-18 11:11:56,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565546650] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:11:56,609 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:11:56,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 11:11:56,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79627530] [2021-12-18 11:11:56,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:11:56,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 11:11:56,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:11:56,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 11:11:56,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 11:11:56,639 INFO L87 Difference]: Start difference. First operand has 1886 states, 1268 states have (on average 1.2854889589905363) internal successors, (1630), 1294 states have internal predecessors, (1630), 512 states have call successors, (512), 104 states have call predecessors, (512), 103 states have return successors, (505), 502 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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) [2021-12-18 11:12:00,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:12:00,104 INFO L93 Difference]: Finished difference Result 5703 states and 8187 transitions. [2021-12-18 11:12:00,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 11:12:00,107 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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 149 [2021-12-18 11:12:00,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:12:00,172 INFO L225 Difference]: With dead ends: 5703 [2021-12-18 11:12:00,173 INFO L226 Difference]: Without dead ends: 3833 [2021-12-18 11:12:00,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 11:12:00,201 INFO L933 BasicCegarLoop]: 2802 mSDtfsCounter, 3406 mSDsluCounter, 2901 mSDsCounter, 0 mSdLazyCounter, 1782 mSolverCounterSat, 1557 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3867 SdHoareTripleChecker+Valid, 5703 SdHoareTripleChecker+Invalid, 3339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1557 IncrementalHoareTripleChecker+Valid, 1782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-12-18 11:12:00,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3867 Valid, 5703 Invalid, 3339 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1557 Valid, 1782 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2021-12-18 11:12:00,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3833 states. [2021-12-18 11:12:00,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3833 to 3601. [2021-12-18 11:12:00,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3601 states, 2435 states have (on average 1.2739219712525667) internal successors, (3102), 2484 states have internal predecessors, (3102), 961 states have call successors, (961), 203 states have call predecessors, (961), 202 states have return successors, (957), 951 states have call predecessors, (957), 957 states have call successors, (957) [2021-12-18 11:12:00,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3601 states to 3601 states and 5020 transitions. [2021-12-18 11:12:00,447 INFO L78 Accepts]: Start accepts. Automaton has 3601 states and 5020 transitions. Word has length 149 [2021-12-18 11:12:00,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:12:00,450 INFO L470 AbstractCegarLoop]: Abstraction has 3601 states and 5020 transitions. [2021-12-18 11:12:00,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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) [2021-12-18 11:12:00,450 INFO L276 IsEmpty]: Start isEmpty. Operand 3601 states and 5020 transitions. [2021-12-18 11:12:00,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-12-18 11:12:00,460 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:12:00,461 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:12:00,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 11:12:00,461 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:12:00,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:12:00,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1243014584, now seen corresponding path program 1 times [2021-12-18 11:12:00,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:12:00,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182391313] [2021-12-18 11:12:00,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:12:00,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:12:00,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:00,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:12:00,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:00,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:00,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:00,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:12:00,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:00,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:00,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:12:00,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:00,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:00,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:00,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:12:00,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:00,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:00,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:00,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:12:00,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:00,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:00,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:00,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:12:00,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:00,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:00,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:00,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:12:00,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:00,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:00,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:00,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:12:00,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:00,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:00,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:00,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:12:00,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:00,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:00,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:00,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:12:00,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:00,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:00,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:00,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:12:00,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:00,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:00,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:00,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 11:12:00,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:00,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 11:12:00,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:00,830 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-12-18 11:12:00,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:12:00,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182391313] [2021-12-18 11:12:00,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182391313] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:12:00,831 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:12:00,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 11:12:00,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219066379] [2021-12-18 11:12:00,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:12:00,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 11:12:00,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:12:00,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 11:12:00,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 11:12:00,839 INFO L87 Difference]: Start difference. First operand 3601 states and 5020 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (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) [2021-12-18 11:12:04,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:12:04,630 INFO L93 Difference]: Finished difference Result 10885 states and 15243 transitions. [2021-12-18 11:12:04,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 11:12:04,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (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 150 [2021-12-18 11:12:04,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:12:04,673 INFO L225 Difference]: With dead ends: 10885 [2021-12-18 11:12:04,674 INFO L226 Difference]: Without dead ends: 7311 [2021-12-18 11:12:04,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 11:12:04,692 INFO L933 BasicCegarLoop]: 3046 mSDtfsCounter, 3101 mSDsluCounter, 2948 mSDsCounter, 0 mSdLazyCounter, 1752 mSolverCounterSat, 1500 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3531 SdHoareTripleChecker+Valid, 5994 SdHoareTripleChecker+Invalid, 3252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1500 IncrementalHoareTripleChecker+Valid, 1752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-12-18 11:12:04,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3531 Valid, 5994 Invalid, 3252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1500 Valid, 1752 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-12-18 11:12:04,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7311 states. [2021-12-18 11:12:04,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7311 to 6837. [2021-12-18 11:12:04,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6837 states, 4636 states have (on average 1.2702761000862812) internal successors, (5889), 4736 states have internal predecessors, (5889), 1797 states have call successors, (1797), 402 states have call predecessors, (1797), 401 states have return successors, (1813), 1770 states have call predecessors, (1813), 1793 states have call successors, (1813) [2021-12-18 11:12:05,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6837 states to 6837 states and 9499 transitions. [2021-12-18 11:12:05,024 INFO L78 Accepts]: Start accepts. Automaton has 6837 states and 9499 transitions. Word has length 150 [2021-12-18 11:12:05,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:12:05,025 INFO L470 AbstractCegarLoop]: Abstraction has 6837 states and 9499 transitions. [2021-12-18 11:12:05,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (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) [2021-12-18 11:12:05,025 INFO L276 IsEmpty]: Start isEmpty. Operand 6837 states and 9499 transitions. [2021-12-18 11:12:05,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-12-18 11:12:05,028 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:12:05,028 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:12:05,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 11:12:05,029 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:12:05,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:12:05,029 INFO L85 PathProgramCache]: Analyzing trace with hash 953371685, now seen corresponding path program 1 times [2021-12-18 11:12:05,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:12:05,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334836050] [2021-12-18 11:12:05,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:12:05,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:12:05,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:05,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:12:05,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:05,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:05,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:05,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:12:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:05,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:05,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:12:05,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:05,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:05,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:05,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:12:05,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:05,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:05,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:05,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:12:05,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:05,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:05,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:05,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:12:05,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:05,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:05,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:05,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:12:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:05,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:05,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:05,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:12:05,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:05,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:05,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:05,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:12:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:05,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:05,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:05,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:12:05,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:05,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:05,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:05,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:12:05,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:05,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:05,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:05,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 11:12:05,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:05,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 11:12:05,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:05,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:12:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:05,333 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-12-18 11:12:05,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:12:05,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334836050] [2021-12-18 11:12:05,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334836050] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:12:05,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:12:05,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 11:12:05,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49033785] [2021-12-18 11:12:05,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:12:05,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 11:12:05,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:12:05,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 11:12:05,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-18 11:12:05,335 INFO L87 Difference]: Start difference. First operand 6837 states and 9499 transitions. Second operand has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-18 11:12:12,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:12:12,982 INFO L93 Difference]: Finished difference Result 27251 states and 37921 transitions. [2021-12-18 11:12:12,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 11:12:12,982 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 158 [2021-12-18 11:12:12,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:12:13,079 INFO L225 Difference]: With dead ends: 27251 [2021-12-18 11:12:13,079 INFO L226 Difference]: Without dead ends: 20441 [2021-12-18 11:12:13,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-12-18 11:12:13,111 INFO L933 BasicCegarLoop]: 3023 mSDtfsCounter, 9231 mSDsluCounter, 4949 mSDsCounter, 0 mSdLazyCounter, 5466 mSolverCounterSat, 4650 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10097 SdHoareTripleChecker+Valid, 7972 SdHoareTripleChecker+Invalid, 10116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4650 IncrementalHoareTripleChecker+Valid, 5466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-12-18 11:12:13,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10097 Valid, 7972 Invalid, 10116 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4650 Valid, 5466 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2021-12-18 11:12:13,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20441 states. [2021-12-18 11:12:13,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20441 to 19021. [2021-12-18 11:12:13,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19021 states, 12916 states have (on average 1.2623877361412201) internal successors, (16305), 13168 states have internal predecessors, (16305), 4921 states have call successors, (4921), 1190 states have call predecessors, (4921), 1181 states have return successors, (4977), 4826 states have call predecessors, (4977), 4917 states have call successors, (4977) [2021-12-18 11:12:13,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19021 states to 19021 states and 26203 transitions. [2021-12-18 11:12:13,818 INFO L78 Accepts]: Start accepts. Automaton has 19021 states and 26203 transitions. Word has length 158 [2021-12-18 11:12:13,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:12:13,818 INFO L470 AbstractCegarLoop]: Abstraction has 19021 states and 26203 transitions. [2021-12-18 11:12:13,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-18 11:12:13,819 INFO L276 IsEmpty]: Start isEmpty. Operand 19021 states and 26203 transitions. [2021-12-18 11:12:13,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-12-18 11:12:13,825 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:12:13,825 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 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] [2021-12-18 11:12:13,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 11:12:13,825 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:12:13,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:12:13,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1404264420, now seen corresponding path program 1 times [2021-12-18 11:12:13,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:12:13,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338120267] [2021-12-18 11:12:13,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:12:13,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:12:13,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:13,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:12:13,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:13,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:13,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:13,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:12:13,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:13,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:13,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:14,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:12:14,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:14,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:14,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:14,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:12:14,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:14,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:14,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:12:14,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:14,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:14,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:14,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:12:14,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:14,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:14,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:14,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:12:14,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:14,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:14,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:14,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:12:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:14,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:14,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:14,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:12:14,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:14,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:14,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:14,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:12:14,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:14,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:14,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:14,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:12:14,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:14,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:14,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:14,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 11:12:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:14,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:12:14,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:14,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 11:12:14,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:14,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 11:12:14,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:14,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 11:12:14,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:14,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:14,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:14,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-18 11:12:14,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:14,110 INFO L134 CoverageAnalysis]: Checked inductivity of 535 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2021-12-18 11:12:14,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:12:14,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338120267] [2021-12-18 11:12:14,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338120267] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:12:14,111 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:12:14,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 11:12:14,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462015311] [2021-12-18 11:12:14,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:12:14,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 11:12:14,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:12:14,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 11:12:14,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 11:12:14,112 INFO L87 Difference]: Start difference. First operand 19021 states and 26203 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-18 11:12:17,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:12:17,089 INFO L93 Difference]: Finished difference Result 34464 states and 47594 transitions. [2021-12-18 11:12:17,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 11:12:17,090 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 195 [2021-12-18 11:12:17,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:12:17,166 INFO L225 Difference]: With dead ends: 34464 [2021-12-18 11:12:17,166 INFO L226 Difference]: Without dead ends: 15470 [2021-12-18 11:12:17,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 11:12:17,233 INFO L933 BasicCegarLoop]: 3202 mSDtfsCounter, 2250 mSDsluCounter, 3094 mSDsCounter, 0 mSdLazyCounter, 1658 mSolverCounterSat, 1131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2599 SdHoareTripleChecker+Valid, 6296 SdHoareTripleChecker+Invalid, 2789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1131 IncrementalHoareTripleChecker+Valid, 1658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-18 11:12:17,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2599 Valid, 6296 Invalid, 2789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1131 Valid, 1658 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-18 11:12:17,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15470 states. [2021-12-18 11:12:17,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15470 to 14612. [2021-12-18 11:12:17,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14612 states, 9983 states have (on average 1.26535109686467) internal successors, (12632), 10193 states have internal predecessors, (12632), 3658 states have call successors, (3658), 979 states have call predecessors, (3658), 968 states have return successors, (3684), 3568 states have call predecessors, (3684), 3654 states have call successors, (3684) [2021-12-18 11:12:17,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14612 states to 14612 states and 19974 transitions. [2021-12-18 11:12:17,791 INFO L78 Accepts]: Start accepts. Automaton has 14612 states and 19974 transitions. Word has length 195 [2021-12-18 11:12:17,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:12:17,792 INFO L470 AbstractCegarLoop]: Abstraction has 14612 states and 19974 transitions. [2021-12-18 11:12:17,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-18 11:12:17,792 INFO L276 IsEmpty]: Start isEmpty. Operand 14612 states and 19974 transitions. [2021-12-18 11:12:17,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-12-18 11:12:17,796 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:12:17,797 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:12:17,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 11:12:17,797 INFO L402 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)] === [2021-12-18 11:12:17,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:12:17,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1257416363, now seen corresponding path program 1 times [2021-12-18 11:12:17,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:12:17,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843295875] [2021-12-18 11:12:17,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:12:17,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:12:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:17,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:12:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:17,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:17,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:17,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:12:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:17,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:17,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:12:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:17,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:17,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:17,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:12:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:17,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:17,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:17,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:12:17,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:17,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:17,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:17,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:12:17,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:17,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:17,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:17,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:12:17,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:17,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:17,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:18,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:12:18,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:18,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:18,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:18,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:12:18,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:18,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:18,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:18,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:12:18,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:18,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:18,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:18,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:12:18,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:18,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:18,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 11:12:18,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:18,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 11:12:18,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:18,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 11:12:18,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:18,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 11:12:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:18,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:18,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:18,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:12:18,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:18,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:12:18,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:18,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-18 11:12:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:18,076 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2021-12-18 11:12:18,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:12:18,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843295875] [2021-12-18 11:12:18,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843295875] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:12:18,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:12:18,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 11:12:18,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571250843] [2021-12-18 11:12:18,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:12:18,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 11:12:18,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:12:18,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 11:12:18,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 11:12:18,079 INFO L87 Difference]: Start difference. First operand 14612 states and 19974 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-18 11:12:21,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:12:21,593 INFO L93 Difference]: Finished difference Result 43764 states and 60219 transitions. [2021-12-18 11:12:21,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 11:12:21,594 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 198 [2021-12-18 11:12:21,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:12:21,735 INFO L225 Difference]: With dead ends: 43764 [2021-12-18 11:12:21,735 INFO L226 Difference]: Without dead ends: 29339 [2021-12-18 11:12:21,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 11:12:21,795 INFO L933 BasicCegarLoop]: 3027 mSDtfsCounter, 3297 mSDsluCounter, 3096 mSDsCounter, 0 mSdLazyCounter, 1775 mSolverCounterSat, 1499 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3748 SdHoareTripleChecker+Valid, 6123 SdHoareTripleChecker+Invalid, 3274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1499 IncrementalHoareTripleChecker+Valid, 1775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-12-18 11:12:21,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3748 Valid, 6123 Invalid, 3274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1499 Valid, 1775 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-12-18 11:12:21,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29339 states. [2021-12-18 11:12:22,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29339 to 27715. [2021-12-18 11:12:22,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27715 states, 18940 states have (on average 1.2640971488912356) internal successors, (23942), 19298 states have internal predecessors, (23942), 6938 states have call successors, (6938), 1849 states have call predecessors, (6938), 1834 states have return successors, (6994), 6807 states have call predecessors, (6994), 6934 states have call successors, (6994) [2021-12-18 11:12:22,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27715 states to 27715 states and 37874 transitions. [2021-12-18 11:12:22,685 INFO L78 Accepts]: Start accepts. Automaton has 27715 states and 37874 transitions. Word has length 198 [2021-12-18 11:12:22,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:12:22,685 INFO L470 AbstractCegarLoop]: Abstraction has 27715 states and 37874 transitions. [2021-12-18 11:12:22,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-18 11:12:22,686 INFO L276 IsEmpty]: Start isEmpty. Operand 27715 states and 37874 transitions. [2021-12-18 11:12:22,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-12-18 11:12:22,688 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:12:22,688 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:12:22,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 11:12:22,688 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:12:22,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:12:22,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1116867753, now seen corresponding path program 1 times [2021-12-18 11:12:22,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:12:22,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654650160] [2021-12-18 11:12:22,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:12:22,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:12:22,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:22,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:12:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:22,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:22,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:22,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:12:22,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:22,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:22,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:22,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:12:22,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:22,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:22,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:22,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:12:22,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:22,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:22,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:22,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:12:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:22,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:22,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:22,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:12:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:22,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:22,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:12:22,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:22,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:22,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:22,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:12:22,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:22,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:22,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:12:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:22,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:22,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:22,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:12:22,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:22,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:22,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:22,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:12:22,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:22,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:22,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:22,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 11:12:22,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:22,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 11:12:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:22,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 11:12:22,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:22,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 11:12:22,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:22,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:22,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:22,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:12:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:22,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:12:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:22,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-18 11:12:22,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:22,985 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2021-12-18 11:12:22,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:12:22,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654650160] [2021-12-18 11:12:22,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654650160] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:12:22,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:12:22,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:12:22,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005166675] [2021-12-18 11:12:22,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:12:22,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:12:22,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:12:22,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:12:22,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:12:22,988 INFO L87 Difference]: Start difference. First operand 27715 states and 37874 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 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) [2021-12-18 11:12:25,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:12:25,464 INFO L93 Difference]: Finished difference Result 29341 states and 40439 transitions. [2021-12-18 11:12:25,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:12:25,465 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 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 198 [2021-12-18 11:12:25,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:12:25,565 INFO L225 Difference]: With dead ends: 29341 [2021-12-18 11:12:25,565 INFO L226 Difference]: Without dead ends: 29339 [2021-12-18 11:12:25,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:12:25,585 INFO L933 BasicCegarLoop]: 2444 mSDtfsCounter, 2769 mSDsluCounter, 4847 mSDsCounter, 0 mSdLazyCounter, 2002 mSolverCounterSat, 1096 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3055 SdHoareTripleChecker+Valid, 7291 SdHoareTripleChecker+Invalid, 3098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1096 IncrementalHoareTripleChecker+Valid, 2002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-18 11:12:25,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3055 Valid, 7291 Invalid, 3098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1096 Valid, 2002 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-18 11:12:25,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29339 states. [2021-12-18 11:12:26,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29339 to 27719. [2021-12-18 11:12:26,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27719 states, 18943 states have (on average 1.264055323866336) internal successors, (23945), 19301 states have internal predecessors, (23945), 6938 states have call successors, (6938), 1850 states have call predecessors, (6938), 1835 states have return successors, (6994), 6807 states have call predecessors, (6994), 6934 states have call successors, (6994) [2021-12-18 11:12:26,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27719 states to 27719 states and 37877 transitions. [2021-12-18 11:12:26,497 INFO L78 Accepts]: Start accepts. Automaton has 27719 states and 37877 transitions. Word has length 198 [2021-12-18 11:12:26,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:12:26,499 INFO L470 AbstractCegarLoop]: Abstraction has 27719 states and 37877 transitions. [2021-12-18 11:12:26,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 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) [2021-12-18 11:12:26,500 INFO L276 IsEmpty]: Start isEmpty. Operand 27719 states and 37877 transitions. [2021-12-18 11:12:26,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-12-18 11:12:26,502 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:12:26,502 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 3, 3, 3, 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] [2021-12-18 11:12:26,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 11:12:26,503 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:12:26,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:12:26,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1422051122, now seen corresponding path program 1 times [2021-12-18 11:12:26,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:12:26,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687035403] [2021-12-18 11:12:26,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:12:26,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:12:26,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:26,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:12:26,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:26,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:26,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:12:26,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:26,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:26,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:26,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:12:26,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:26,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:26,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:26,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:12:26,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:26,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:26,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:26,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:12:26,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:26,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:26,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:26,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:12:26,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:26,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:26,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:26,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:12:26,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:26,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:26,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:26,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:12:26,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:26,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:26,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:26,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:12:26,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:26,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:26,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:26,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:12:26,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:26,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:26,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:26,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:12:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:26,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:26,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:26,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 11:12:26,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:26,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 11:12:26,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:26,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 11:12:26,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:26,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 11:12:26,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:26,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:26,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:26,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:12:26,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:26,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:12:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:26,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-18 11:12:26,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:26,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-18 11:12:26,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:26,781 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2021-12-18 11:12:26,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:12:26,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687035403] [2021-12-18 11:12:26,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687035403] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:12:26,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:12:26,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:12:26,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141549886] [2021-12-18 11:12:26,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:12:26,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:12:26,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:12:26,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:12:26,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:12:26,783 INFO L87 Difference]: Start difference. First operand 27719 states and 37877 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2021-12-18 11:12:29,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:12:29,488 INFO L93 Difference]: Finished difference Result 29345 states and 40442 transitions. [2021-12-18 11:12:29,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:12:29,490 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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 203 [2021-12-18 11:12:29,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:12:29,615 INFO L225 Difference]: With dead ends: 29345 [2021-12-18 11:12:29,615 INFO L226 Difference]: Without dead ends: 29343 [2021-12-18 11:12:29,633 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:12:29,634 INFO L933 BasicCegarLoop]: 2470 mSDtfsCounter, 2742 mSDsluCounter, 4892 mSDsCounter, 0 mSdLazyCounter, 2005 mSolverCounterSat, 1084 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3029 SdHoareTripleChecker+Valid, 7362 SdHoareTripleChecker+Invalid, 3089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1084 IncrementalHoareTripleChecker+Valid, 2005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-18 11:12:29,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3029 Valid, 7362 Invalid, 3089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1084 Valid, 2005 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-18 11:12:29,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29343 states. [2021-12-18 11:12:30,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29343 to 27723. [2021-12-18 11:12:30,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27723 states, 18946 states have (on average 1.264013512086984) internal successors, (23948), 19304 states have internal predecessors, (23948), 6938 states have call successors, (6938), 1851 states have call predecessors, (6938), 1836 states have return successors, (6994), 6807 states have call predecessors, (6994), 6934 states have call successors, (6994) [2021-12-18 11:12:30,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27723 states to 27723 states and 37880 transitions. [2021-12-18 11:12:30,483 INFO L78 Accepts]: Start accepts. Automaton has 27723 states and 37880 transitions. Word has length 203 [2021-12-18 11:12:30,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:12:30,484 INFO L470 AbstractCegarLoop]: Abstraction has 27723 states and 37880 transitions. [2021-12-18 11:12:30,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2021-12-18 11:12:30,485 INFO L276 IsEmpty]: Start isEmpty. Operand 27723 states and 37880 transitions. [2021-12-18 11:12:30,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-12-18 11:12:30,487 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:12:30,488 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:12:30,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 11:12:30,488 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:12:30,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:12:30,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1872831113, now seen corresponding path program 1 times [2021-12-18 11:12:30,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:12:30,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667864738] [2021-12-18 11:12:30,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:12:30,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:12:30,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:12:30,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:30,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:12:30,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:30,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:12:30,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:30,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:12:30,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:30,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:12:30,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:30,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:12:30,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:30,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:12:30,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:30,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:12:30,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:30,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:12:30,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:12:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:12:30,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:30,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 11:12:30,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 11:12:30,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 11:12:30,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 11:12:30,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:30,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:12:30,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:12:30,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-18 11:12:30,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-18 11:12:30,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-18 11:12:30,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:30,739 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 629 trivial. 0 not checked. [2021-12-18 11:12:30,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:12:30,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667864738] [2021-12-18 11:12:30,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667864738] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:12:30,739 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:12:30,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:12:30,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632945566] [2021-12-18 11:12:30,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:12:30,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:12:30,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:12:30,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:12:30,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:12:30,741 INFO L87 Difference]: Start difference. First operand 27723 states and 37880 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 11:12:33,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:12:33,452 INFO L93 Difference]: Finished difference Result 29349 states and 40445 transitions. [2021-12-18 11:12:33,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:12:33,452 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 208 [2021-12-18 11:12:33,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:12:33,547 INFO L225 Difference]: With dead ends: 29349 [2021-12-18 11:12:33,547 INFO L226 Difference]: Without dead ends: 29347 [2021-12-18 11:12:33,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:12:33,563 INFO L933 BasicCegarLoop]: 2464 mSDtfsCounter, 2747 mSDsluCounter, 4880 mSDsCounter, 0 mSdLazyCounter, 2002 mSolverCounterSat, 1086 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3034 SdHoareTripleChecker+Valid, 7344 SdHoareTripleChecker+Invalid, 3088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1086 IncrementalHoareTripleChecker+Valid, 2002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-18 11:12:33,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3034 Valid, 7344 Invalid, 3088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1086 Valid, 2002 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-18 11:12:33,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29347 states. [2021-12-18 11:12:34,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29347 to 27727. [2021-12-18 11:12:34,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27727 states, 18949 states have (on average 1.263971713546889) internal successors, (23951), 19307 states have internal predecessors, (23951), 6938 states have call successors, (6938), 1852 states have call predecessors, (6938), 1837 states have return successors, (6994), 6807 states have call predecessors, (6994), 6934 states have call successors, (6994) [2021-12-18 11:12:34,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27727 states to 27727 states and 37883 transitions. [2021-12-18 11:12:34,499 INFO L78 Accepts]: Start accepts. Automaton has 27727 states and 37883 transitions. Word has length 208 [2021-12-18 11:12:34,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:12:34,499 INFO L470 AbstractCegarLoop]: Abstraction has 27727 states and 37883 transitions. [2021-12-18 11:12:34,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 11:12:34,500 INFO L276 IsEmpty]: Start isEmpty. Operand 27727 states and 37883 transitions. [2021-12-18 11:12:34,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-12-18 11:12:34,503 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:12:34,503 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:12:34,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 11:12:34,504 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:12:34,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:12:34,504 INFO L85 PathProgramCache]: Analyzing trace with hash -107567290, now seen corresponding path program 1 times [2021-12-18 11:12:34,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:12:34,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22609733] [2021-12-18 11:12:34,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:12:34,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:12:34,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:12:34,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:34,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:12:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:34,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:12:34,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:34,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:12:34,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:34,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:12:34,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:34,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:12:34,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:34,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:12:34,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:34,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:12:34,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:34,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:12:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:34,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:12:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:34,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:12:34,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:34,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 11:12:34,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 11:12:34,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 11:12:34,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 11:12:34,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:34,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:12:34,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:12:34,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-18 11:12:34,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 11:12:34,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:12:34,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-18 11:12:34,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-18 11:12:34,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-18 11:12:34,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:34,730 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2021-12-18 11:12:34,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:12:34,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22609733] [2021-12-18 11:12:34,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22609733] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:12:34,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:12:34,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 11:12:34,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390004725] [2021-12-18 11:12:34,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:12:34,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 11:12:34,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:12:34,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 11:12:34,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 11:12:34,732 INFO L87 Difference]: Start difference. First operand 27727 states and 37883 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-18 11:12:40,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:12:40,554 INFO L93 Difference]: Finished difference Result 70835 states and 97362 transitions. [2021-12-18 11:12:40,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 11:12:40,555 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 226 [2021-12-18 11:12:40,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:12:40,758 INFO L225 Difference]: With dead ends: 70835 [2021-12-18 11:12:40,758 INFO L226 Difference]: Without dead ends: 43295 [2021-12-18 11:12:40,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 11:12:40,846 INFO L933 BasicCegarLoop]: 4481 mSDtfsCounter, 3463 mSDsluCounter, 3689 mSDsCounter, 0 mSdLazyCounter, 3838 mSolverCounterSat, 2656 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3787 SdHoareTripleChecker+Valid, 8170 SdHoareTripleChecker+Invalid, 6494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2656 IncrementalHoareTripleChecker+Valid, 3838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-12-18 11:12:40,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3787 Valid, 8170 Invalid, 6494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2656 Valid, 3838 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-12-18 11:12:40,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43295 states. [2021-12-18 11:12:42,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43295 to 40842. [2021-12-18 11:12:42,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40842 states, 27918 states have (on average 1.2634501038756358) internal successors, (35273), 28424 states have internal predecessors, (35273), 10218 states have call successors, (10218), 2722 states have call predecessors, (10218), 2703 states have return successors, (10304), 10046 states have call predecessors, (10304), 10214 states have call successors, (10304) [2021-12-18 11:12:42,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40842 states to 40842 states and 55795 transitions. [2021-12-18 11:12:42,476 INFO L78 Accepts]: Start accepts. Automaton has 40842 states and 55795 transitions. Word has length 226 [2021-12-18 11:12:42,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:12:42,476 INFO L470 AbstractCegarLoop]: Abstraction has 40842 states and 55795 transitions. [2021-12-18 11:12:42,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-18 11:12:42,477 INFO L276 IsEmpty]: Start isEmpty. Operand 40842 states and 55795 transitions. [2021-12-18 11:12:42,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-12-18 11:12:42,480 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:12:42,480 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:12:42,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 11:12:42,480 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:12:42,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:12:42,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1289498066, now seen corresponding path program 1 times [2021-12-18 11:12:42,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:12:42,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89181385] [2021-12-18 11:12:42,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:12:42,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:12:42,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:12:42,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:42,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:12:42,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:42,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:12:42,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:42,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:12:42,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:42,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:12:42,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:42,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:12:42,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:42,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:12:42,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:42,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:12:42,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:42,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:12:42,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:42,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:12:42,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:42,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:12:42,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:42,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 11:12:42,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 11:12:42,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 11:12:42,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 11:12:42,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:42,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:12:42,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:12:42,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-18 11:12:42,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-18 11:12:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-18 11:12:42,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 11:12:42,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:42,854 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2021-12-18 11:12:42,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:12:42,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89181385] [2021-12-18 11:12:42,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89181385] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:12:42,855 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:12:42,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:12:42,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879975066] [2021-12-18 11:12:42,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:12:42,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:12:42,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:12:42,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:12:42,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:12:42,857 INFO L87 Difference]: Start difference. First operand 40842 states and 55795 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2021-12-18 11:12:46,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:12:46,189 INFO L93 Difference]: Finished difference Result 43266 states and 59622 transitions. [2021-12-18 11:12:46,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:12:46,190 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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 213 [2021-12-18 11:12:46,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:12:46,335 INFO L225 Difference]: With dead ends: 43266 [2021-12-18 11:12:46,336 INFO L226 Difference]: Without dead ends: 43264 [2021-12-18 11:12:46,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:12:46,360 INFO L933 BasicCegarLoop]: 2468 mSDtfsCounter, 2743 mSDsluCounter, 4888 mSDsCounter, 0 mSdLazyCounter, 2005 mSolverCounterSat, 1084 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3030 SdHoareTripleChecker+Valid, 7356 SdHoareTripleChecker+Invalid, 3089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1084 IncrementalHoareTripleChecker+Valid, 2005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-18 11:12:46,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3030 Valid, 7356 Invalid, 3089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1084 Valid, 2005 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-18 11:12:46,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43264 states. [2021-12-18 11:12:47,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43264 to 40846. [2021-12-18 11:12:47,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40846 states, 27921 states have (on average 1.2634217972135668) internal successors, (35276), 28427 states have internal predecessors, (35276), 10218 states have call successors, (10218), 2723 states have call predecessors, (10218), 2704 states have return successors, (10304), 10046 states have call predecessors, (10304), 10214 states have call successors, (10304) [2021-12-18 11:12:47,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40846 states to 40846 states and 55798 transitions. [2021-12-18 11:12:47,847 INFO L78 Accepts]: Start accepts. Automaton has 40846 states and 55798 transitions. Word has length 213 [2021-12-18 11:12:47,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:12:47,848 INFO L470 AbstractCegarLoop]: Abstraction has 40846 states and 55798 transitions. [2021-12-18 11:12:47,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2021-12-18 11:12:47,848 INFO L276 IsEmpty]: Start isEmpty. Operand 40846 states and 55798 transitions. [2021-12-18 11:12:47,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-12-18 11:12:47,868 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:12:47,868 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:12:47,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 11:12:47,869 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:12:47,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:12:47,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1102794647, now seen corresponding path program 1 times [2021-12-18 11:12:47,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:12:47,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266639908] [2021-12-18 11:12:47,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:12:47,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:12:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:47,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:12:47,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:47,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:47,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:47,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:12:47,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:48,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:48,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:48,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:12:48,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:48,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:48,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:48,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:12:48,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:48,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:48,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:48,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:12:48,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:48,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:48,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:48,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:12:48,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:48,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:48,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:48,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:12:48,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:48,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:48,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:48,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:12:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:48,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:48,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:48,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:12:48,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:48,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:48,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:48,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:12:48,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:48,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:48,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:48,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:12:48,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:48,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:48,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:48,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 11:12:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:48,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 11:12:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:48,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 11:12:48,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:48,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 11:12:48,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:48,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:48,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:48,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:12:48,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:48,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:12:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:48,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-18 11:12:48,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:48,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-18 11:12:48,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:48,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-18 11:12:48,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:48,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 11:12:48,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:48,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-18 11:12:48,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:48,109 INFO L134 CoverageAnalysis]: Checked inductivity of 657 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-12-18 11:12:48,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:12:48,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266639908] [2021-12-18 11:12:48,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266639908] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:12:48,110 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:12:48,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:12:48,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811367330] [2021-12-18 11:12:48,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:12:48,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:12:48,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:12:48,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:12:48,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:12:48,112 INFO L87 Difference]: Start difference. First operand 40846 states and 55798 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2021-12-18 11:12:51,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:12:51,268 INFO L93 Difference]: Finished difference Result 43270 states and 59625 transitions. [2021-12-18 11:12:51,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:12:51,269 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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 218 [2021-12-18 11:12:51,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:12:51,403 INFO L225 Difference]: With dead ends: 43270 [2021-12-18 11:12:51,403 INFO L226 Difference]: Without dead ends: 43268 [2021-12-18 11:12:51,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:12:51,423 INFO L933 BasicCegarLoop]: 2463 mSDtfsCounter, 2747 mSDsluCounter, 4878 mSDsCounter, 0 mSdLazyCounter, 2002 mSolverCounterSat, 1086 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3034 SdHoareTripleChecker+Valid, 7341 SdHoareTripleChecker+Invalid, 3088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1086 IncrementalHoareTripleChecker+Valid, 2002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-18 11:12:51,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3034 Valid, 7341 Invalid, 3088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1086 Valid, 2002 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-18 11:12:51,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43268 states. [2021-12-18 11:12:52,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43268 to 40850. [2021-12-18 11:12:52,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40850 states, 27924 states have (on average 1.2633934966337201) internal successors, (35279), 28430 states have internal predecessors, (35279), 10218 states have call successors, (10218), 2724 states have call predecessors, (10218), 2705 states have return successors, (10304), 10046 states have call predecessors, (10304), 10214 states have call successors, (10304) [2021-12-18 11:12:52,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40850 states to 40850 states and 55801 transitions. [2021-12-18 11:12:52,925 INFO L78 Accepts]: Start accepts. Automaton has 40850 states and 55801 transitions. Word has length 218 [2021-12-18 11:12:52,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:12:52,925 INFO L470 AbstractCegarLoop]: Abstraction has 40850 states and 55801 transitions. [2021-12-18 11:12:52,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2021-12-18 11:12:52,926 INFO L276 IsEmpty]: Start isEmpty. Operand 40850 states and 55801 transitions. [2021-12-18 11:12:52,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-12-18 11:12:52,930 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:12:52,930 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 6, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:12:52,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 11:12:52,931 INFO L402 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)] === [2021-12-18 11:12:52,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:12:52,931 INFO L85 PathProgramCache]: Analyzing trace with hash 982770574, now seen corresponding path program 1 times [2021-12-18 11:12:52,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:12:52,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225992414] [2021-12-18 11:12:52,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:12:52,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:12:52,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:12:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:12:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:53,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:12:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:12:53,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:53,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:12:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:53,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:12:53,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:53,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:12:53,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:53,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:12:53,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:53,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:12:53,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:53,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:12:53,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:53,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:12:53,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:53,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 11:12:53,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 11:12:53,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 11:12:53,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 11:12:53,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:53,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:12:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:12:53,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-18 11:12:53,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-18 11:12:53,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-18 11:12:53,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 11:12:53,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-18 11:12:53,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-18 11:12:53,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:53,227 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 665 trivial. 0 not checked. [2021-12-18 11:12:53,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:12:53,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225992414] [2021-12-18 11:12:53,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225992414] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:12:53,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:12:53,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:12:53,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67495253] [2021-12-18 11:12:53,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:12:53,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:12:53,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:12:53,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:12:53,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:12:53,229 INFO L87 Difference]: Start difference. First operand 40850 states and 55801 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-18 11:12:56,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:12:56,911 INFO L93 Difference]: Finished difference Result 43274 states and 59628 transitions. [2021-12-18 11:12:56,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:12:56,912 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 223 [2021-12-18 11:12:56,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:12:57,100 INFO L225 Difference]: With dead ends: 43274 [2021-12-18 11:12:57,100 INFO L226 Difference]: Without dead ends: 43272 [2021-12-18 11:12:57,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:12:57,122 INFO L933 BasicCegarLoop]: 2463 mSDtfsCounter, 2748 mSDsluCounter, 4879 mSDsCounter, 0 mSdLazyCounter, 2005 mSolverCounterSat, 1084 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3034 SdHoareTripleChecker+Valid, 7342 SdHoareTripleChecker+Invalid, 3089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1084 IncrementalHoareTripleChecker+Valid, 2005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-18 11:12:57,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3034 Valid, 7342 Invalid, 3089 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1084 Valid, 2005 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-18 11:12:57,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43272 states. [2021-12-18 11:12:58,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43272 to 40854. [2021-12-18 11:12:58,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40854 states, 27927 states have (on average 1.2633652021341355) internal successors, (35282), 28433 states have internal predecessors, (35282), 10218 states have call successors, (10218), 2725 states have call predecessors, (10218), 2706 states have return successors, (10304), 10046 states have call predecessors, (10304), 10214 states have call successors, (10304) [2021-12-18 11:12:58,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40854 states to 40854 states and 55804 transitions. [2021-12-18 11:12:58,651 INFO L78 Accepts]: Start accepts. Automaton has 40854 states and 55804 transitions. Word has length 223 [2021-12-18 11:12:58,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:12:58,652 INFO L470 AbstractCegarLoop]: Abstraction has 40854 states and 55804 transitions. [2021-12-18 11:12:58,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-18 11:12:58,652 INFO L276 IsEmpty]: Start isEmpty. Operand 40854 states and 55804 transitions. [2021-12-18 11:12:58,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-12-18 11:12:58,673 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:12:58,674 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 7, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:12:58,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-18 11:12:58,674 INFO L402 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)] === [2021-12-18 11:12:58,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:12:58,675 INFO L85 PathProgramCache]: Analyzing trace with hash -2034677321, now seen corresponding path program 1 times [2021-12-18 11:12:58,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:12:58,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072347139] [2021-12-18 11:12:58,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:12:58,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:12:58,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:58,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:12:58,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:58,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:58,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:58,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:12:58,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:58,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:58,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:58,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:12:58,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:58,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:58,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:12:58,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:58,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:58,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:58,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:12:58,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:58,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:58,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:58,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:12:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:58,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:58,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:12:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:58,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:58,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:12:58,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:58,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:58,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:58,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:12:58,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:58,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:58,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:58,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:12:58,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:58,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:58,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:58,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:12:58,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:58,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:58,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:58,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 11:12:58,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:58,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 11:12:58,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:58,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 11:12:58,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:58,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 11:12:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:58,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:58,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:58,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:12:58,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:12:59,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-18 11:12:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-18 11:12:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-18 11:12:59,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 11:12:59,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-18 11:12:59,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-18 11:12:59,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 11:12:59,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,053 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2021-12-18 11:12:59,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:12:59,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072347139] [2021-12-18 11:12:59,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072347139] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:12:59,053 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:12:59,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:12:59,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130167879] [2021-12-18 11:12:59,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:12:59,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:12:59,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:12:59,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:12:59,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:12:59,055 INFO L87 Difference]: Start difference. First operand 40854 states and 55804 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-18 11:13:02,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:13:02,561 INFO L93 Difference]: Finished difference Result 43278 states and 59631 transitions. [2021-12-18 11:13:02,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:13:02,561 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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 228 [2021-12-18 11:13:02,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:13:02,706 INFO L225 Difference]: With dead ends: 43278 [2021-12-18 11:13:02,706 INFO L226 Difference]: Without dead ends: 43276 [2021-12-18 11:13:02,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:13:02,735 INFO L933 BasicCegarLoop]: 2467 mSDtfsCounter, 2743 mSDsluCounter, 4886 mSDsCounter, 0 mSdLazyCounter, 2005 mSolverCounterSat, 1083 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3030 SdHoareTripleChecker+Valid, 7353 SdHoareTripleChecker+Invalid, 3088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1083 IncrementalHoareTripleChecker+Valid, 2005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-18 11:13:02,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3030 Valid, 7353 Invalid, 3088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1083 Valid, 2005 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-18 11:13:02,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43276 states. [2021-12-18 11:13:04,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43276 to 40858. [2021-12-18 11:13:04,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40858 states, 27930 states have (on average 1.2633369137128536) internal successors, (35285), 28436 states have internal predecessors, (35285), 10218 states have call successors, (10218), 2726 states have call predecessors, (10218), 2707 states have return successors, (10304), 10046 states have call predecessors, (10304), 10214 states have call successors, (10304) [2021-12-18 11:13:04,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40858 states to 40858 states and 55807 transitions. [2021-12-18 11:13:04,553 INFO L78 Accepts]: Start accepts. Automaton has 40858 states and 55807 transitions. Word has length 228 [2021-12-18 11:13:04,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:13:04,553 INFO L470 AbstractCegarLoop]: Abstraction has 40858 states and 55807 transitions. [2021-12-18 11:13:04,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-18 11:13:04,554 INFO L276 IsEmpty]: Start isEmpty. Operand 40858 states and 55807 transitions. [2021-12-18 11:13:04,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-12-18 11:13:04,557 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:13:04,557 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 8, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:13:04,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-18 11:13:04,558 INFO L402 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)] === [2021-12-18 11:13:04,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:13:04,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1578593518, now seen corresponding path program 1 times [2021-12-18 11:13:04,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:13:04,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922981098] [2021-12-18 11:13:04,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:13:04,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:13:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:13:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:04,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:13:04,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:04,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:13:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:13:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:13:04,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:13:04,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:04,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:13:04,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:04,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:13:04,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:04,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:13:04,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:04,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:13:04,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:04,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:13:04,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:04,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 11:13:04,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 11:13:04,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 11:13:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 11:13:04,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:04,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:13:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:13:04,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-18 11:13:04,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-18 11:13:04,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-18 11:13:04,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 11:13:04,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-18 11:13:04,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-18 11:13:04,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 11:13:04,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 11:13:04,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:04,805 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 709 trivial. 0 not checked. [2021-12-18 11:13:04,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:13:04,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922981098] [2021-12-18 11:13:04,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922981098] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:13:04,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:13:04,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:13:04,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562837775] [2021-12-18 11:13:04,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:13:04,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:13:04,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:13:04,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:13:04,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:13:04,807 INFO L87 Difference]: Start difference. First operand 40858 states and 55807 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 11:13:09,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:13:09,073 INFO L93 Difference]: Finished difference Result 49516 states and 67365 transitions. [2021-12-18 11:13:09,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 11:13:09,074 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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 233 [2021-12-18 11:13:09,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:13:09,245 INFO L225 Difference]: With dead ends: 49516 [2021-12-18 11:13:09,245 INFO L226 Difference]: Without dead ends: 49514 [2021-12-18 11:13:09,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:13:09,270 INFO L933 BasicCegarLoop]: 2790 mSDtfsCounter, 2615 mSDsluCounter, 5484 mSDsCounter, 0 mSdLazyCounter, 3039 mSolverCounterSat, 1066 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2919 SdHoareTripleChecker+Valid, 8274 SdHoareTripleChecker+Invalid, 4105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1066 IncrementalHoareTripleChecker+Valid, 3039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-18 11:13:09,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2919 Valid, 8274 Invalid, 4105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1066 Valid, 3039 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-18 11:13:09,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49514 states. [2021-12-18 11:13:10,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49514 to 46712. [2021-12-18 11:13:10,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46712 states, 32028 states have (on average 1.2614899462969902) internal successors, (40403), 32579 states have internal predecessors, (40403), 11235 states have call successors, (11235), 3465 states have call predecessors, (11235), 3446 states have return successors, (11321), 11063 states have call predecessors, (11321), 11231 states have call successors, (11321) [2021-12-18 11:13:11,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46712 states to 46712 states and 62959 transitions. [2021-12-18 11:13:11,103 INFO L78 Accepts]: Start accepts. Automaton has 46712 states and 62959 transitions. Word has length 233 [2021-12-18 11:13:11,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:13:11,104 INFO L470 AbstractCegarLoop]: Abstraction has 46712 states and 62959 transitions. [2021-12-18 11:13:11,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 11:13:11,104 INFO L276 IsEmpty]: Start isEmpty. Operand 46712 states and 62959 transitions. [2021-12-18 11:13:11,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2021-12-18 11:13:11,108 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:13:11,108 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 9, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:13:11,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-18 11:13:11,108 INFO L402 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)] === [2021-12-18 11:13:11,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:13:11,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1995519017, now seen corresponding path program 1 times [2021-12-18 11:13:11,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:13:11,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080385356] [2021-12-18 11:13:11,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:13:11,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:13:11,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:13:11,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:11,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:13:11,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:11,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:13:11,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:11,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:13:11,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:11,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:13:11,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:11,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:13:11,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:13:11,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:11,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:13:11,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:11,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:13:11,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:11,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:13:11,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:11,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:13:11,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:11,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 11:13:11,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 11:13:11,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 11:13:11,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 11:13:11,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:11,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:13:11,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:13:11,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-18 11:13:11,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-18 11:13:11,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-18 11:13:11,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 11:13:11,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-18 11:13:11,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-18 11:13:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 11:13:11,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 11:13:11,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-18 11:13:11,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:11,342 INFO L134 CoverageAnalysis]: Checked inductivity of 753 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 737 trivial. 0 not checked. [2021-12-18 11:13:11,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:13:11,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080385356] [2021-12-18 11:13:11,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080385356] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:13:11,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:13:11,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:13:11,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441020572] [2021-12-18 11:13:11,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:13:11,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:13:11,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:13:11,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:13:11,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:13:11,344 INFO L87 Difference]: Start difference. First operand 46712 states and 62959 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27)