./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3dcd453e519a411dcaaa8ea095e5544a2fd8cdb9a31e662fc6de670ff7f7c541 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 13:55:21,092 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 13:55:21,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 13:55:21,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 13:55:21,123 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 13:55:21,124 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 13:55:21,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 13:55:21,134 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 13:55:21,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 13:55:21,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 13:55:21,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 13:55:21,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 13:55:21,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 13:55:21,148 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 13:55:21,149 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 13:55:21,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 13:55:21,154 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 13:55:21,155 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 13:55:21,157 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 13:55:21,161 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 13:55:21,165 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 13:55:21,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 13:55:21,168 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 13:55:21,169 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 13:55:21,170 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 13:55:21,173 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 13:55:21,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 13:55:21,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 13:55:21,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 13:55:21,176 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 13:55:21,177 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 13:55:21,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 13:55:21,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 13:55:21,179 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 13:55:21,181 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 13:55:21,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 13:55:21,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 13:55:21,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 13:55:21,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 13:55:21,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 13:55:21,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 13:55:21,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 13:55:21,185 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 13:55:21,220 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 13:55:21,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 13:55:21,221 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 13:55:21,221 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 13:55:21,222 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 13:55:21,222 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 13:55:21,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 13:55:21,223 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 13:55:21,223 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 13:55:21,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 13:55:21,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 13:55:21,224 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 13:55:21,224 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 13:55:21,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 13:55:21,225 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 13:55:21,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 13:55:21,225 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 13:55:21,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 13:55:21,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 13:55:21,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 13:55:21,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 13:55:21,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 13:55:21,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 13:55:21,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 13:55:21,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 13:55:21,227 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 13:55:21,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 13:55:21,227 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 13:55:21,228 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 13:55:21,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 13:55:21,228 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3dcd453e519a411dcaaa8ea095e5544a2fd8cdb9a31e662fc6de670ff7f7c541 [2022-07-21 13:55:21,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 13:55:21,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 13:55:21,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 13:55:21,548 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 13:55:21,549 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 13:55:21,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i [2022-07-21 13:55:21,612 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9aa03b905/c05376f0821f4724a84bf9589d8d6192/FLAG12c8f2189 [2022-07-21 13:55:22,415 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 13:55:22,416 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i [2022-07-21 13:55:22,456 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9aa03b905/c05376f0821f4724a84bf9589d8d6192/FLAG12c8f2189 [2022-07-21 13:55:22,619 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9aa03b905/c05376f0821f4724a84bf9589d8d6192 [2022-07-21 13:55:22,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 13:55:22,622 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 13:55:22,623 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 13:55:22,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 13:55:22,628 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 13:55:22,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:55:22" (1/1) ... [2022-07-21 13:55:22,629 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35b4fb11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:55:22, skipping insertion in model container [2022-07-21 13:55:22,630 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:55:22" (1/1) ... [2022-07-21 13:55:22,636 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 13:55:22,788 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 13:55:25,223 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[320934,320947] [2022-07-21 13:55:25,232 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321103,321116] [2022-07-21 13:55:25,241 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321270,321283] [2022-07-21 13:55:25,242 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321438,321451] [2022-07-21 13:55:25,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 13:55:25,285 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 13:55:25,652 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[320934,320947] [2022-07-21 13:55:25,653 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321103,321116] [2022-07-21 13:55:25,653 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321270,321283] [2022-07-21 13:55:25,654 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321438,321451] [2022-07-21 13:55:25,660 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 13:55:25,783 INFO L208 MainTranslator]: Completed translation [2022-07-21 13:55:25,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:55:25 WrapperNode [2022-07-21 13:55:25,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 13:55:25,785 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 13:55:25,785 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 13:55:25,785 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 13:55:25,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:55:25" (1/1) ... [2022-07-21 13:55:25,870 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:55:25" (1/1) ... [2022-07-21 13:55:26,186 INFO L137 Inliner]: procedures = 418, calls = 1969, calls flagged for inlining = 195, calls inlined = 179, statements flattened = 5299 [2022-07-21 13:55:26,187 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 13:55:26,188 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 13:55:26,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 13:55:26,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 13:55:26,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:55:25" (1/1) ... [2022-07-21 13:55:26,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:55:25" (1/1) ... [2022-07-21 13:55:26,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:55:25" (1/1) ... [2022-07-21 13:55:26,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:55:25" (1/1) ... [2022-07-21 13:55:26,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:55:25" (1/1) ... [2022-07-21 13:55:26,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:55:25" (1/1) ... [2022-07-21 13:55:26,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:55:25" (1/1) ... [2022-07-21 13:55:26,537 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 13:55:26,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 13:55:26,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 13:55:26,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 13:55:26,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:55:25" (1/1) ... [2022-07-21 13:55:26,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 13:55:26,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 13:55:26,573 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 13:55:26,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 13:55:26,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_fst_cleanup_module_12_2 [2022-07-21 13:55:26,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_fst_cleanup_module_12_2 [2022-07-21 13:55:26,611 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-21 13:55:26,611 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-21 13:55:26,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 13:55:26,612 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 13:55:26,612 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-21 13:55:26,612 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-21 13:55:26,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 13:55:26,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 13:55:26,612 INFO L130 BoogieDeclarations]: Found specification of procedure fst_remove_one [2022-07-21 13:55:26,612 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_remove_one [2022-07-21 13:55:26,613 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-21 13:55:26,613 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-21 13:55:26,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 13:55:26,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 13:55:26,613 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-21 13:55:26,613 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-21 13:55:26,613 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-07-21 13:55:26,614 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-07-21 13:55:26,614 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2022-07-21 13:55:26,614 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2022-07-21 13:55:26,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2022-07-21 13:55:26,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2022-07-21 13:55:26,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_67 [2022-07-21 13:55:26,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_67 [2022-07-21 13:55:26,615 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 13:55:26,615 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 13:55:26,615 INFO L130 BoogieDeclarations]: Found specification of procedure fst_close [2022-07-21 13:55:26,615 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_close [2022-07-21 13:55:26,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-21 13:55:26,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-21 13:55:26,615 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-07-21 13:55:26,616 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-07-21 13:55:26,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-21 13:55:26,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-21 13:55:26,616 INFO L130 BoogieDeclarations]: Found specification of procedure fst_tx_timeout [2022-07-21 13:55:26,616 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_tx_timeout [2022-07-21 13:55:26,616 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-21 13:55:26,616 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-21 13:55:26,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 13:55:26,617 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-21 13:55:26,617 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-21 13:55:26,617 INFO L130 BoogieDeclarations]: Found specification of procedure fst_open [2022-07-21 13:55:26,617 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_open [2022-07-21 13:55:26,617 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_type_trans [2022-07-21 13:55:26,617 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_type_trans [2022-07-21 13:55:26,618 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-21 13:55:26,618 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-21 13:55:26,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-21 13:55:26,618 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-21 13:55:26,618 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-21 13:55:26,618 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-21 13:55:26,618 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-21 13:55:26,619 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-21 13:55:26,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-21 13:55:26,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-21 13:55:26,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-21 13:55:26,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-21 13:55:26,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 13:55:26,619 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2022-07-21 13:55:26,620 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2022-07-21 13:55:26,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 13:55:26,620 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 13:55:26,620 INFO L130 BoogieDeclarations]: Found specification of procedure fst_issue_cmd [2022-07-21 13:55:26,620 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_issue_cmd [2022-07-21 13:55:26,620 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-21 13:55:26,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-21 13:55:26,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-21 13:55:26,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-21 13:55:26,621 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-21 13:55:26,621 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-21 13:55:26,621 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-21 13:55:26,621 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-21 13:55:26,621 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-21 13:55:26,622 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-21 13:55:26,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-21 13:55:26,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-21 13:55:26,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 13:55:26,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-21 13:55:26,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-21 13:55:26,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-07-21 13:55:26,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-07-21 13:55:26,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_card_lock_of_fst_card_info [2022-07-21 13:55:26,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_card_lock_of_fst_card_info [2022-07-21 13:55:26,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 13:55:26,623 INFO L130 BoogieDeclarations]: Found specification of procedure fst_cpureset [2022-07-21 13:55:26,623 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_cpureset [2022-07-21 13:55:26,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-21 13:55:26,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-21 13:55:26,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 13:55:26,624 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 13:55:26,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 13:55:26,624 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-07-21 13:55:26,624 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-07-21 13:55:26,624 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-21 13:55:26,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-21 13:55:26,625 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-07-21 13:55:26,625 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-07-21 13:55:26,625 INFO L130 BoogieDeclarations]: Found specification of procedure fst_q_work_item [2022-07-21 13:55:26,625 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_q_work_item [2022-07-21 13:55:26,625 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-21 13:55:26,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-21 13:55:26,625 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-21 13:55:26,626 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-21 13:55:26,626 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-21 13:55:26,626 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-21 13:55:26,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-21 13:55:26,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-21 13:55:26,626 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-21 13:55:26,626 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-21 13:55:26,627 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-07-21 13:55:26,627 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-07-21 13:55:26,627 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-07-21 13:55:26,627 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-07-21 13:55:26,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 13:55:26,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 13:55:26,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 13:55:26,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 13:55:26,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 13:55:26,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 13:55:26,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 13:55:26,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 13:55:26,628 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-21 13:55:26,628 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-21 13:55:26,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 13:55:26,629 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 13:55:26,629 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-21 13:55:26,629 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-21 13:55:26,629 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-21 13:55:26,629 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-21 13:55:26,629 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-21 13:55:26,630 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-21 13:55:26,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 13:55:26,630 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-07-21 13:55:26,630 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-07-21 13:55:26,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 13:55:26,630 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2022-07-21 13:55:26,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2022-07-21 13:55:26,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 13:55:26,631 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-21 13:55:26,631 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-21 13:55:26,631 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-21 13:55:26,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-21 13:55:26,631 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-07-21 13:55:26,631 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-07-21 13:55:26,631 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-21 13:55:26,631 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-21 13:55:26,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-21 13:55:26,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-21 13:55:26,632 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-07-21 13:55:26,632 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-07-21 13:55:26,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-07-21 13:55:26,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-07-21 13:55:26,632 INFO L130 BoogieDeclarations]: Found specification of procedure farsync_type_trans [2022-07-21 13:55:26,633 INFO L138 BoogieDeclarations]: Found implementation of procedure farsync_type_trans [2022-07-21 13:55:26,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-21 13:55:26,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-21 13:55:26,633 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-21 13:55:26,633 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-21 13:55:26,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_fst_work_q_lock [2022-07-21 13:55:26,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_fst_work_q_lock [2022-07-21 13:55:26,634 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 13:55:26,634 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 13:55:26,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 13:55:26,634 INFO L130 BoogieDeclarations]: Found specification of procedure fst_disable_intr [2022-07-21 13:55:26,634 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_disable_intr [2022-07-21 13:55:26,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 13:55:26,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 13:55:26,634 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-21 13:55:26,635 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-21 13:55:26,635 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-21 13:55:26,635 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-21 13:55:26,635 INFO L130 BoogieDeclarations]: Found specification of procedure do_bottom_half_tx [2022-07-21 13:55:26,635 INFO L138 BoogieDeclarations]: Found implementation of procedure do_bottom_half_tx [2022-07-21 13:55:26,635 INFO L130 BoogieDeclarations]: Found specification of procedure fst_process_rx_status [2022-07-21 13:55:26,635 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_process_rx_status [2022-07-21 13:55:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-21 13:55:26,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-21 13:55:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-07-21 13:55:26,636 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-07-21 13:55:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_ioctl [2022-07-21 13:55:26,636 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_ioctl [2022-07-21 13:55:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-21 13:55:26,637 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-21 13:55:26,637 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-21 13:55:26,637 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-21 13:55:26,637 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-07-21 13:55:26,637 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-07-21 13:55:26,637 INFO L130 BoogieDeclarations]: Found specification of procedure fst_clear_intr [2022-07-21 13:55:26,637 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_clear_intr [2022-07-21 13:55:26,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 13:55:26,638 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-07-21 13:55:26,638 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-07-21 13:55:26,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-21 13:55:26,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-21 13:55:26,638 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-07-21 13:55:26,638 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-07-21 13:55:27,332 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 13:55:27,335 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 13:55:27,437 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 13:55:30,551 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-21 13:55:30,630 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 13:55:30,645 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 13:55:30,645 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 13:55:30,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:55:30 BoogieIcfgContainer [2022-07-21 13:55:30,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 13:55:30,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 13:55:30,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 13:55:30,652 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 13:55:30,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:55:22" (1/3) ... [2022-07-21 13:55:30,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ab9434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:55:30, skipping insertion in model container [2022-07-21 13:55:30,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:55:25" (2/3) ... [2022-07-21 13:55:30,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ab9434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:55:30, skipping insertion in model container [2022-07-21 13:55:30,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:55:30" (3/3) ... [2022-07-21 13:55:30,655 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i [2022-07-21 13:55:30,666 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 13:55:30,667 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-21 13:55:30,763 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 13:55:30,768 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@593dd031, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5f479049 [2022-07-21 13:55:30,769 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-21 13:55:30,777 INFO L276 IsEmpty]: Start isEmpty. Operand has 1862 states, 1281 states have (on average 1.3036690085870413) internal successors, (1670), 1295 states have internal predecessors, (1670), 488 states have call successors, (488), 91 states have call predecessors, (488), 90 states have return successors, (481), 479 states have call predecessors, (481), 481 states have call successors, (481) [2022-07-21 13:55:30,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-21 13:55:30,792 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:55:30,793 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:55:30,793 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:55:30,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:55:30,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1565129519, now seen corresponding path program 1 times [2022-07-21 13:55:30,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:55:30,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542311536] [2022-07-21 13:55:30,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:55:30,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:55:31,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:31,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:55:31,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:31,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:55:31,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:31,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:55:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:31,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:55:31,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:31,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:55:31,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:31,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:55:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:31,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:55:31,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:31,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:55:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:31,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:55:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:31,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:55:31,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:31,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 13:55:31,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:31,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 13:55:31,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:31,471 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-21 13:55:31,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:55:31,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542311536] [2022-07-21 13:55:31,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542311536] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:55:31,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:55:31,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 13:55:31,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133236191] [2022-07-21 13:55:31,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:55:31,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 13:55:31,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:55:31,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 13:55:31,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 13:55:31,517 INFO L87 Difference]: Start difference. First operand has 1862 states, 1281 states have (on average 1.3036690085870413) internal successors, (1670), 1295 states have internal predecessors, (1670), 488 states have call successors, (488), 91 states have call predecessors, (488), 90 states have return successors, (481), 479 states have call predecessors, (481), 481 states have call successors, (481) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-07-21 13:55:35,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:55:35,941 INFO L93 Difference]: Finished difference Result 5468 states and 7881 transitions. [2022-07-21 13:55:35,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 13:55:35,943 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 83 [2022-07-21 13:55:35,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:55:36,011 INFO L225 Difference]: With dead ends: 5468 [2022-07-21 13:55:36,012 INFO L226 Difference]: Without dead ends: 3610 [2022-07-21 13:55:36,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:55:36,031 INFO L413 NwaCegarLoop]: 2785 mSDtfsCounter, 3022 mSDsluCounter, 2484 mSDsCounter, 0 mSdLazyCounter, 2134 mSolverCounterSat, 1338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3464 SdHoareTripleChecker+Valid, 5269 SdHoareTripleChecker+Invalid, 3472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1338 IncrementalHoareTripleChecker+Valid, 2134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:55:36,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3464 Valid, 5269 Invalid, 3472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1338 Valid, 2134 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-07-21 13:55:36,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3610 states. [2022-07-21 13:55:36,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3610 to 3588. [2022-07-21 13:55:36,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3588 states, 2487 states have (on average 1.2903096099718536) internal successors, (3209), 2514 states have internal predecessors, (3209), 922 states have call successors, (922), 177 states have call predecessors, (922), 176 states have return successors, (918), 914 states have call predecessors, (918), 918 states have call successors, (918) [2022-07-21 13:55:36,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3588 states to 3588 states and 5049 transitions. [2022-07-21 13:55:36,319 INFO L78 Accepts]: Start accepts. Automaton has 3588 states and 5049 transitions. Word has length 83 [2022-07-21 13:55:36,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:55:36,321 INFO L495 AbstractCegarLoop]: Abstraction has 3588 states and 5049 transitions. [2022-07-21 13:55:36,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-07-21 13:55:36,322 INFO L276 IsEmpty]: Start isEmpty. Operand 3588 states and 5049 transitions. [2022-07-21 13:55:36,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-21 13:55:36,330 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:55:36,331 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:55:36,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 13:55:36,332 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:55:36,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:55:36,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1794242578, now seen corresponding path program 1 times [2022-07-21 13:55:36,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:55:36,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140897246] [2022-07-21 13:55:36,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:55:36,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:55:36,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:36,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:55:36,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:36,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:55:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:36,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:55:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:36,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:55:36,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:36,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:55:36,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:36,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:55:36,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:36,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:55:36,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:36,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:55:36,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:36,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:55:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:36,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:55:36,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:36,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 13:55:36,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:36,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 13:55:36,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:36,601 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-21 13:55:36,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:55:36,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140897246] [2022-07-21 13:55:36,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140897246] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:55:36,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:55:36,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 13:55:36,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463692326] [2022-07-21 13:55:36,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:55:36,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 13:55:36,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:55:36,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 13:55:36,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 13:55:36,609 INFO L87 Difference]: Start difference. First operand 3588 states and 5049 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-07-21 13:55:40,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:55:40,563 INFO L93 Difference]: Finished difference Result 9924 states and 13928 transitions. [2022-07-21 13:55:40,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 13:55:40,564 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 95 [2022-07-21 13:55:40,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:55:40,601 INFO L225 Difference]: With dead ends: 9924 [2022-07-21 13:55:40,602 INFO L226 Difference]: Without dead ends: 6351 [2022-07-21 13:55:40,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:55:40,616 INFO L413 NwaCegarLoop]: 2683 mSDtfsCounter, 2519 mSDsluCounter, 2492 mSDsCounter, 0 mSdLazyCounter, 2053 mSolverCounterSat, 1263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2868 SdHoareTripleChecker+Valid, 5175 SdHoareTripleChecker+Invalid, 3316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1263 IncrementalHoareTripleChecker+Valid, 2053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-07-21 13:55:40,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2868 Valid, 5175 Invalid, 3316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1263 Valid, 2053 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-07-21 13:55:40,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6351 states. [2022-07-21 13:55:40,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6351 to 6285. [2022-07-21 13:55:40,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6285 states, 4346 states have (on average 1.286470317533364) internal successors, (5591), 4398 states have internal predecessors, (5591), 1599 states have call successors, (1599), 338 states have call predecessors, (1599), 337 states have return successors, (1601), 1580 states have call predecessors, (1601), 1595 states have call successors, (1601) [2022-07-21 13:55:40,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6285 states to 6285 states and 8791 transitions. [2022-07-21 13:55:40,903 INFO L78 Accepts]: Start accepts. Automaton has 6285 states and 8791 transitions. Word has length 95 [2022-07-21 13:55:40,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:55:40,905 INFO L495 AbstractCegarLoop]: Abstraction has 6285 states and 8791 transitions. [2022-07-21 13:55:40,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-07-21 13:55:40,905 INFO L276 IsEmpty]: Start isEmpty. Operand 6285 states and 8791 transitions. [2022-07-21 13:55:40,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-21 13:55:40,909 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:55:40,909 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:55:40,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 13:55:40,910 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:55:40,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:55:40,911 INFO L85 PathProgramCache]: Analyzing trace with hash -401151663, now seen corresponding path program 1 times [2022-07-21 13:55:40,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:55:40,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311995862] [2022-07-21 13:55:40,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:55:40,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:55:40,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:41,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:55:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:41,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:55:41,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:41,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:55:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:41,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:55:41,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:41,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:55:41,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:41,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:55:41,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:41,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:55:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:41,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:55:41,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:41,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:55:41,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:41,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:55:41,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:41,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 13:55:41,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:41,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:55:41,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:41,220 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-21 13:55:41,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:55:41,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311995862] [2022-07-21 13:55:41,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311995862] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:55:41,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:55:41,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 13:55:41,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114363038] [2022-07-21 13:55:41,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:55:41,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 13:55:41,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:55:41,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 13:55:41,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:55:41,224 INFO L87 Difference]: Start difference. First operand 6285 states and 8791 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-07-21 13:55:48,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:55:48,600 INFO L93 Difference]: Finished difference Result 14394 states and 20122 transitions. [2022-07-21 13:55:48,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 13:55:48,601 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 93 [2022-07-21 13:55:48,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:55:48,639 INFO L225 Difference]: With dead ends: 14394 [2022-07-21 13:55:48,639 INFO L226 Difference]: Without dead ends: 8124 [2022-07-21 13:55:48,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-07-21 13:55:48,658 INFO L413 NwaCegarLoop]: 3362 mSDtfsCounter, 10709 mSDsluCounter, 3130 mSDsCounter, 0 mSdLazyCounter, 4709 mSolverCounterSat, 5344 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11572 SdHoareTripleChecker+Valid, 6492 SdHoareTripleChecker+Invalid, 10053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5344 IncrementalHoareTripleChecker+Valid, 4709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-07-21 13:55:48,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11572 Valid, 6492 Invalid, 10053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5344 Valid, 4709 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-07-21 13:55:48,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8124 states. [2022-07-21 13:55:48,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8124 to 8036. [2022-07-21 13:55:48,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8036 states, 5611 states have (on average 1.2940652290144359) internal successors, (7261), 5678 states have internal predecessors, (7261), 1956 states have call successors, (1956), 471 states have call predecessors, (1956), 466 states have return successors, (1955), 1922 states have call predecessors, (1955), 1952 states have call successors, (1955) [2022-07-21 13:55:48,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8036 states to 8036 states and 11172 transitions. [2022-07-21 13:55:48,965 INFO L78 Accepts]: Start accepts. Automaton has 8036 states and 11172 transitions. Word has length 93 [2022-07-21 13:55:48,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:55:48,967 INFO L495 AbstractCegarLoop]: Abstraction has 8036 states and 11172 transitions. [2022-07-21 13:55:48,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-07-21 13:55:48,968 INFO L276 IsEmpty]: Start isEmpty. Operand 8036 states and 11172 transitions. [2022-07-21 13:55:48,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-21 13:55:48,969 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:55:48,970 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:55:48,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 13:55:48,970 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:55:48,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:55:48,971 INFO L85 PathProgramCache]: Analyzing trace with hash -480453640, now seen corresponding path program 1 times [2022-07-21 13:55:48,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:55:48,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001993767] [2022-07-21 13:55:48,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:55:48,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:55:49,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:49,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:55:49,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:49,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:55:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:49,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:55:49,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:49,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:55:49,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:49,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:55:49,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:49,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:55:49,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:49,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:55:49,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:49,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:55:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:49,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:55:49,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:49,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:55:49,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:49,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 13:55:49,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:49,126 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-21 13:55:49,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:55:49,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001993767] [2022-07-21 13:55:49,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001993767] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:55:49,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:55:49,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 13:55:49,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842799373] [2022-07-21 13:55:49,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:55:49,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 13:55:49,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:55:49,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 13:55:49,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 13:55:49,128 INFO L87 Difference]: Start difference. First operand 8036 states and 11172 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-21 13:55:52,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:55:52,619 INFO L93 Difference]: Finished difference Result 22479 states and 31147 transitions. [2022-07-21 13:55:52,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 13:55:52,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 91 [2022-07-21 13:55:52,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:55:52,687 INFO L225 Difference]: With dead ends: 22479 [2022-07-21 13:55:52,688 INFO L226 Difference]: Without dead ends: 14458 [2022-07-21 13:55:52,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:55:52,721 INFO L413 NwaCegarLoop]: 2734 mSDtfsCounter, 2872 mSDsluCounter, 2466 mSDsCounter, 0 mSdLazyCounter, 2155 mSolverCounterSat, 1368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3282 SdHoareTripleChecker+Valid, 5200 SdHoareTripleChecker+Invalid, 3523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1368 IncrementalHoareTripleChecker+Valid, 2155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-07-21 13:55:52,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3282 Valid, 5200 Invalid, 3523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1368 Valid, 2155 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-21 13:55:52,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14458 states. [2022-07-21 13:55:53,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14458 to 14372. [2022-07-21 13:55:53,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14372 states, 10037 states have (on average 1.2834512304473449) internal successors, (12882), 10172 states have internal predecessors, (12882), 3450 states have call successors, (3450), 891 states have call predecessors, (3450), 882 states have return successors, (3452), 3371 states have call predecessors, (3452), 3446 states have call successors, (3452) [2022-07-21 13:55:53,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14372 states to 14372 states and 19784 transitions. [2022-07-21 13:55:53,347 INFO L78 Accepts]: Start accepts. Automaton has 14372 states and 19784 transitions. Word has length 91 [2022-07-21 13:55:53,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:55:53,348 INFO L495 AbstractCegarLoop]: Abstraction has 14372 states and 19784 transitions. [2022-07-21 13:55:53,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-21 13:55:53,348 INFO L276 IsEmpty]: Start isEmpty. Operand 14372 states and 19784 transitions. [2022-07-21 13:55:53,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-21 13:55:53,354 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:55:53,354 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:55:53,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 13:55:53,354 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:55:53,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:55:53,360 INFO L85 PathProgramCache]: Analyzing trace with hash 606465146, now seen corresponding path program 1 times [2022-07-21 13:55:53,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:55:53,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212186108] [2022-07-21 13:55:53,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:55:53,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:55:53,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:53,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:55:53,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:53,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:55:53,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:53,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:55:53,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:53,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:55:53,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:53,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:55:53,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:53,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:55:53,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:53,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:55:53,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:53,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:55:53,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:53,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:55:53,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:53,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:55:53,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:53,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 13:55:53,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:53,594 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-21 13:55:53,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:55:53,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212186108] [2022-07-21 13:55:53,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212186108] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:55:53,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:55:53,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 13:55:53,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851161316] [2022-07-21 13:55:53,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:55:53,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 13:55:53,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:55:53,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 13:55:53,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 13:55:53,597 INFO L87 Difference]: Start difference. First operand 14372 states and 19784 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-21 13:55:55,782 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:55:59,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:55:59,671 INFO L93 Difference]: Finished difference Result 41500 states and 57060 transitions. [2022-07-21 13:55:59,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 13:55:59,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 92 [2022-07-21 13:55:59,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:55:59,875 INFO L225 Difference]: With dead ends: 41500 [2022-07-21 13:55:59,875 INFO L226 Difference]: Without dead ends: 27143 [2022-07-21 13:55:59,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:55:59,930 INFO L413 NwaCegarLoop]: 3016 mSDtfsCounter, 2918 mSDsluCounter, 2600 mSDsCounter, 0 mSdLazyCounter, 2178 mSolverCounterSat, 1331 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3352 SdHoareTripleChecker+Valid, 5616 SdHoareTripleChecker+Invalid, 3510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1331 IncrementalHoareTripleChecker+Valid, 2178 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-07-21 13:55:59,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3352 Valid, 5616 Invalid, 3510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1331 Valid, 2178 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-07-21 13:55:59,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27143 states. [2022-07-21 13:56:00,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27143 to 26997. [2022-07-21 13:56:00,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26997 states, 18896 states have (on average 1.2753492802709567) internal successors, (24099), 19168 states have internal predecessors, (24099), 6410 states have call successors, (6410), 1705 states have call predecessors, (6410), 1688 states have return successors, (6418), 6241 states have call predecessors, (6418), 6406 states have call successors, (6418) [2022-07-21 13:56:01,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26997 states to 26997 states and 36927 transitions. [2022-07-21 13:56:01,052 INFO L78 Accepts]: Start accepts. Automaton has 26997 states and 36927 transitions. Word has length 92 [2022-07-21 13:56:01,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:56:01,053 INFO L495 AbstractCegarLoop]: Abstraction has 26997 states and 36927 transitions. [2022-07-21 13:56:01,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-21 13:56:01,054 INFO L276 IsEmpty]: Start isEmpty. Operand 26997 states and 36927 transitions. [2022-07-21 13:56:01,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-21 13:56:01,055 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:56:01,055 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:56:01,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 13:56:01,056 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:56:01,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:56:01,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1444009632, now seen corresponding path program 1 times [2022-07-21 13:56:01,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:56:01,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718134609] [2022-07-21 13:56:01,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:56:01,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:56:01,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:01,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:56:01,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:01,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:01,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:56:01,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:01,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:01,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:01,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:56:01,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:01,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:01,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:01,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:56:01,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:01,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:01,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:01,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:56:01,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:01,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:01,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:01,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 13:56:01,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:01,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 13:56:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:01,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:56:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:01,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 13:56:01,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:01,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 13:56:01,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:01,238 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-07-21 13:56:01,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:56:01,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718134609] [2022-07-21 13:56:01,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718134609] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:56:01,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:56:01,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 13:56:01,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491090625] [2022-07-21 13:56:01,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:56:01,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 13:56:01,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:56:01,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 13:56:01,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 13:56:01,241 INFO L87 Difference]: Start difference. First operand 26997 states and 36927 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-21 13:56:05,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:56:05,165 INFO L93 Difference]: Finished difference Result 75036 states and 102616 transitions. [2022-07-21 13:56:05,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 13:56:05,165 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 108 [2022-07-21 13:56:05,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:56:05,357 INFO L225 Difference]: With dead ends: 75036 [2022-07-21 13:56:05,357 INFO L226 Difference]: Without dead ends: 48054 [2022-07-21 13:56:05,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:56:05,439 INFO L413 NwaCegarLoop]: 3356 mSDtfsCounter, 2733 mSDsluCounter, 2860 mSDsCounter, 0 mSdLazyCounter, 2066 mSolverCounterSat, 1219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3133 SdHoareTripleChecker+Valid, 6216 SdHoareTripleChecker+Invalid, 3285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1219 IncrementalHoareTripleChecker+Valid, 2066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-21 13:56:05,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3133 Valid, 6216 Invalid, 3285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1219 Valid, 2066 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-21 13:56:05,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48054 states. [2022-07-21 13:56:06,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48054 to 47812. [2022-07-21 13:56:06,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47812 states, 33395 states have (on average 1.2702799820332384) internal successors, (42421), 33945 states have internal predecessors, (42421), 11412 states have call successors, (11412), 3067 states have call predecessors, (11412), 3002 states have return successors, (11440), 11019 states have call predecessors, (11440), 11408 states have call successors, (11440) [2022-07-21 13:56:07,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47812 states to 47812 states and 65273 transitions. [2022-07-21 13:56:07,332 INFO L78 Accepts]: Start accepts. Automaton has 47812 states and 65273 transitions. Word has length 108 [2022-07-21 13:56:07,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:56:07,333 INFO L495 AbstractCegarLoop]: Abstraction has 47812 states and 65273 transitions. [2022-07-21 13:56:07,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-21 13:56:07,333 INFO L276 IsEmpty]: Start isEmpty. Operand 47812 states and 65273 transitions. [2022-07-21 13:56:07,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-07-21 13:56:07,336 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:56:07,336 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:56:07,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 13:56:07,336 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:56:07,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:56:07,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1186239737, now seen corresponding path program 1 times [2022-07-21 13:56:07,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:56:07,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572282353] [2022-07-21 13:56:07,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:56:07,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:56:07,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:07,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:56:07,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:07,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:07,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:07,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:56:07,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:07,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:07,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:07,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:56:07,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:07,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:07,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:07,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:56:07,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:07,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:07,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:07,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:56:07,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:07,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:07,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:07,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 13:56:07,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:07,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 13:56:07,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:07,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-21 13:56:07,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:07,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 13:56:07,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:07,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 13:56:07,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:07,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 13:56:07,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:07,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-21 13:56:07,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:07,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:07,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:07,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:56:07,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:07,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 13:56:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:07,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 13:56:07,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:07,706 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-07-21 13:56:07,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:56:07,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572282353] [2022-07-21 13:56:07,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572282353] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:56:07,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:56:07,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 13:56:07,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649300162] [2022-07-21 13:56:07,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:56:07,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 13:56:07,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:56:07,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 13:56:07,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 13:56:07,709 INFO L87 Difference]: Start difference. First operand 47812 states and 65273 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 13:56:10,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:56:10,837 INFO L93 Difference]: Finished difference Result 95820 states and 130864 transitions. [2022-07-21 13:56:10,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 13:56:10,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 150 [2022-07-21 13:56:10,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:56:11,028 INFO L225 Difference]: With dead ends: 95820 [2022-07-21 13:56:11,028 INFO L226 Difference]: Without dead ends: 48100 [2022-07-21 13:56:11,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 13:56:11,161 INFO L413 NwaCegarLoop]: 2443 mSDtfsCounter, 551 mSDsluCounter, 2505 mSDsCounter, 0 mSdLazyCounter, 1673 mSolverCounterSat, 477 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 4948 SdHoareTripleChecker+Invalid, 2150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 477 IncrementalHoareTripleChecker+Valid, 1673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-21 13:56:11,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 4948 Invalid, 2150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [477 Valid, 1673 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-21 13:56:11,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48100 states. [2022-07-21 13:56:12,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48100 to 47860. [2022-07-21 13:56:12,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47860 states, 33443 states have (on average 1.269892055138594) internal successors, (42469), 33993 states have internal predecessors, (42469), 11412 states have call successors, (11412), 3067 states have call predecessors, (11412), 3002 states have return successors, (11440), 11019 states have call predecessors, (11440), 11408 states have call successors, (11440) [2022-07-21 13:56:12,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47860 states to 47860 states and 65321 transitions. [2022-07-21 13:56:12,879 INFO L78 Accepts]: Start accepts. Automaton has 47860 states and 65321 transitions. Word has length 150 [2022-07-21 13:56:12,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:56:12,880 INFO L495 AbstractCegarLoop]: Abstraction has 47860 states and 65321 transitions. [2022-07-21 13:56:12,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 13:56:12,881 INFO L276 IsEmpty]: Start isEmpty. Operand 47860 states and 65321 transitions. [2022-07-21 13:56:12,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-07-21 13:56:12,882 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:56:12,883 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:56:12,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 13:56:12,883 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:56:12,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:56:12,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1165995741, now seen corresponding path program 1 times [2022-07-21 13:56:12,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:56:12,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577031680] [2022-07-21 13:56:12,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:56:12,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:56:13,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:13,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:56:13,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:13,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:13,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:13,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:56:13,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:13,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:13,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:13,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:56:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:13,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:13,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:56:13,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:13,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:13,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:13,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:56:13,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:13,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:13,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:13,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 13:56:13,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:13,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 13:56:13,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:13,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 13:56:13,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:13,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 13:56:13,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:13,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 13:56:13,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:13,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 13:56:13,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:13,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 13:56:13,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:13,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:13,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:13,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 13:56:13,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:13,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-21 13:56:13,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:13,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 13:56:13,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:13,372 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-07-21 13:56:13,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:56:13,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577031680] [2022-07-21 13:56:13,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577031680] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 13:56:13,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491664599] [2022-07-21 13:56:13,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:56:13,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 13:56:13,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 13:56:13,379 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 13:56:13,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 13:56:13,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:13,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 1628 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 13:56:13,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:56:14,030 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2022-07-21 13:56:14,031 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 13:56:14,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491664599] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:56:14,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 13:56:14,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-07-21 13:56:14,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585553519] [2022-07-21 13:56:14,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:56:14,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 13:56:14,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:56:14,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 13:56:14,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:56:14,033 INFO L87 Difference]: Start difference. First operand 47860 states and 65321 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-21 13:56:15,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:56:15,628 INFO L93 Difference]: Finished difference Result 103050 states and 140745 transitions. [2022-07-21 13:56:15,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 13:56:15,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 152 [2022-07-21 13:56:15,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:56:15,890 INFO L225 Difference]: With dead ends: 103050 [2022-07-21 13:56:15,891 INFO L226 Difference]: Without dead ends: 55282 [2022-07-21 13:56:16,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:56:16,053 INFO L413 NwaCegarLoop]: 3167 mSDtfsCounter, 2531 mSDsluCounter, 2122 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2531 SdHoareTripleChecker+Valid, 5289 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 13:56:16,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2531 Valid, 5289 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 13:56:16,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55282 states. [2022-07-21 13:56:17,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55282 to 55259. [2022-07-21 13:56:17,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55259 states, 38803 states have (on average 1.2701852949514212) internal successors, (49287), 39353 states have internal predecessors, (49287), 13038 states have call successors, (13038), 3488 states have call predecessors, (13038), 3415 states have return successors, (13074), 12677 states have call predecessors, (13074), 13034 states have call successors, (13074) [2022-07-21 13:56:17,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55259 states to 55259 states and 75399 transitions. [2022-07-21 13:56:17,876 INFO L78 Accepts]: Start accepts. Automaton has 55259 states and 75399 transitions. Word has length 152 [2022-07-21 13:56:17,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:56:17,876 INFO L495 AbstractCegarLoop]: Abstraction has 55259 states and 75399 transitions. [2022-07-21 13:56:17,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-21 13:56:17,877 INFO L276 IsEmpty]: Start isEmpty. Operand 55259 states and 75399 transitions. [2022-07-21 13:56:17,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-07-21 13:56:17,879 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:56:17,879 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:56:17,902 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-21 13:56:18,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 13:56:18,085 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:56:18,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:56:18,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1025447131, now seen corresponding path program 1 times [2022-07-21 13:56:18,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:56:18,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498387156] [2022-07-21 13:56:18,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:56:18,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:56:18,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:18,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:56:18,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:18,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:18,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:56:18,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:18,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:18,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:18,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:56:18,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:18,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:18,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:18,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:56:18,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:18,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:18,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:18,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:56:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:18,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:18,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 13:56:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:18,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 13:56:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:18,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 13:56:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:18,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 13:56:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:18,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 13:56:18,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:18,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 13:56:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:18,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 13:56:18,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:18,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:18,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 13:56:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:18,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-21 13:56:18,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:18,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 13:56:18,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:18,527 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-07-21 13:56:18,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:56:18,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498387156] [2022-07-21 13:56:18,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498387156] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 13:56:18,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261223238] [2022-07-21 13:56:18,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:56:18,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 13:56:18,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 13:56:18,532 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 13:56:18,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-21 13:56:19,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:19,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 1629 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 13:56:19,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:56:19,227 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 76 proven. 1 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-07-21 13:56:19,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 13:56:19,321 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-07-21 13:56:19,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261223238] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 13:56:19,322 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 13:56:19,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2022-07-21 13:56:19,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638726312] [2022-07-21 13:56:19,323 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 13:56:19,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 13:56:19,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:56:19,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 13:56:19,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-21 13:56:19,324 INFO L87 Difference]: Start difference. First operand 55259 states and 75399 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-21 13:56:23,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:56:23,944 INFO L93 Difference]: Finished difference Result 110734 states and 151134 transitions. [2022-07-21 13:56:23,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:56:23,945 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 152 [2022-07-21 13:56:23,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:56:24,362 INFO L225 Difference]: With dead ends: 110734 [2022-07-21 13:56:24,362 INFO L226 Difference]: Without dead ends: 55567 [2022-07-21 13:56:24,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-21 13:56:24,503 INFO L413 NwaCegarLoop]: 2443 mSDtfsCounter, 556 mSDsluCounter, 5421 mSDsCounter, 0 mSdLazyCounter, 3952 mSolverCounterSat, 482 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 7864 SdHoareTripleChecker+Invalid, 4434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 482 IncrementalHoareTripleChecker+Valid, 3952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:56:24,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 7864 Invalid, 4434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [482 Valid, 3952 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-21 13:56:24,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55567 states. [2022-07-21 13:56:25,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55567 to 55331. [2022-07-21 13:56:25,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55331 states, 38875 states have (on average 1.269684887459807) internal successors, (49359), 39425 states have internal predecessors, (49359), 13038 states have call successors, (13038), 3488 states have call predecessors, (13038), 3415 states have return successors, (13074), 12677 states have call predecessors, (13074), 13034 states have call successors, (13074) [2022-07-21 13:56:26,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55331 states to 55331 states and 75471 transitions. [2022-07-21 13:56:26,138 INFO L78 Accepts]: Start accepts. Automaton has 55331 states and 75471 transitions. Word has length 152 [2022-07-21 13:56:26,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:56:26,139 INFO L495 AbstractCegarLoop]: Abstraction has 55331 states and 75471 transitions. [2022-07-21 13:56:26,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-21 13:56:26,139 INFO L276 IsEmpty]: Start isEmpty. Operand 55331 states and 75471 transitions. [2022-07-21 13:56:26,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-07-21 13:56:26,142 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:56:26,142 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:56:26,185 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-21 13:56:26,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-07-21 13:56:26,359 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:56:26,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:56:26,360 INFO L85 PathProgramCache]: Analyzing trace with hash 686822265, now seen corresponding path program 2 times [2022-07-21 13:56:26,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:56:26,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28312936] [2022-07-21 13:56:26,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:56:26,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:56:26,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:26,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:56:26,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:26,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:26,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:26,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:56:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:26,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:26,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:26,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:56:26,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:26,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:26,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:56:26,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:26,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:26,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:26,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:56:26,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:26,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:26,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:26,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 13:56:26,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:26,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 13:56:26,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:26,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 13:56:26,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:26,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 13:56:26,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:26,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 13:56:26,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:26,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 13:56:26,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:26,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 13:56:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:26,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:26,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:26,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 13:56:26,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:26,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-21 13:56:26,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:26,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 13:56:26,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:26,688 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2022-07-21 13:56:26,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:56:26,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28312936] [2022-07-21 13:56:26,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28312936] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:56:26,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:56:26,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:56:26,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607686473] [2022-07-21 13:56:26,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:56:26,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:56:26,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:56:26,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:56:26,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:56:26,692 INFO L87 Difference]: Start difference. First operand 55331 states and 75471 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, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 13:56:31,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:56:31,031 INFO L93 Difference]: Finished difference Result 55573 states and 75807 transitions. [2022-07-21 13:56:31,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:56:31,037 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, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 158 [2022-07-21 13:56:31,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:56:31,248 INFO L225 Difference]: With dead ends: 55573 [2022-07-21 13:56:31,248 INFO L226 Difference]: Without dead ends: 55571 [2022-07-21 13:56:31,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:56:31,295 INFO L413 NwaCegarLoop]: 2442 mSDtfsCounter, 2520 mSDsluCounter, 3973 mSDsCounter, 0 mSdLazyCounter, 2801 mSolverCounterSat, 921 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2819 SdHoareTripleChecker+Valid, 6415 SdHoareTripleChecker+Invalid, 3722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 921 IncrementalHoareTripleChecker+Valid, 2801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:56:31,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2819 Valid, 6415 Invalid, 3722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [921 Valid, 2801 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-21 13:56:31,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55571 states. [2022-07-21 13:56:32,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55571 to 55335. [2022-07-21 13:56:32,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55335 states, 38878 states have (on average 1.269664077370235) internal successors, (49362), 39428 states have internal predecessors, (49362), 13038 states have call successors, (13038), 3489 states have call predecessors, (13038), 3416 states have return successors, (13074), 12677 states have call predecessors, (13074), 13034 states have call successors, (13074) [2022-07-21 13:56:33,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55335 states to 55335 states and 75474 transitions. [2022-07-21 13:56:33,016 INFO L78 Accepts]: Start accepts. Automaton has 55335 states and 75474 transitions. Word has length 158 [2022-07-21 13:56:33,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:56:33,017 INFO L495 AbstractCegarLoop]: Abstraction has 55335 states and 75474 transitions. [2022-07-21 13:56:33,017 INFO L496 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, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 13:56:33,017 INFO L276 IsEmpty]: Start isEmpty. Operand 55335 states and 75474 transitions. [2022-07-21 13:56:33,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-21 13:56:33,020 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:56:33,020 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:56:33,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 13:56:33,020 INFO L420 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)] === [2022-07-21 13:56:33,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:56:33,021 INFO L85 PathProgramCache]: Analyzing trace with hash -296417503, now seen corresponding path program 1 times [2022-07-21 13:56:33,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:56:33,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681770171] [2022-07-21 13:56:33,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:56:33,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:56:33,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:33,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:56:33,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:33,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:33,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:33,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:56:33,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:33,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:33,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:33,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:56:33,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:33,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:33,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:33,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:56:33,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:33,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:33,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:33,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:56:33,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:33,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:33,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:33,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 13:56:33,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:33,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 13:56:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:33,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 13:56:33,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:33,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 13:56:33,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:33,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 13:56:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:33,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 13:56:33,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:33,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 13:56:33,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:33,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:33,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 13:56:33,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:33,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-21 13:56:33,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:33,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 13:56:33,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:33,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-21 13:56:33,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:33,251 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2022-07-21 13:56:33,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:56:33,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681770171] [2022-07-21 13:56:33,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681770171] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:56:33,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:56:33,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:56:33,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277105154] [2022-07-21 13:56:33,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:56:33,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:56:33,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:56:33,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:56:33,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:56:33,254 INFO L87 Difference]: Start difference. First operand 55335 states and 75474 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 13:56:37,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:56:37,271 INFO L93 Difference]: Finished difference Result 55577 states and 75810 transitions. [2022-07-21 13:56:37,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:56:37,272 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 163 [2022-07-21 13:56:37,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:56:37,450 INFO L225 Difference]: With dead ends: 55577 [2022-07-21 13:56:37,451 INFO L226 Difference]: Without dead ends: 55575 [2022-07-21 13:56:37,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:56:37,486 INFO L413 NwaCegarLoop]: 2445 mSDtfsCounter, 2512 mSDsluCounter, 3973 mSDsCounter, 0 mSdLazyCounter, 2801 mSolverCounterSat, 920 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2811 SdHoareTripleChecker+Valid, 6418 SdHoareTripleChecker+Invalid, 3721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 920 IncrementalHoareTripleChecker+Valid, 2801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-21 13:56:37,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2811 Valid, 6418 Invalid, 3721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [920 Valid, 2801 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-21 13:56:37,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55575 states. [2022-07-21 13:56:38,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55575 to 55339. [2022-07-21 13:56:38,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55339 states, 38881 states have (on average 1.2696432704920142) internal successors, (49365), 39431 states have internal predecessors, (49365), 13038 states have call successors, (13038), 3490 states have call predecessors, (13038), 3417 states have return successors, (13074), 12677 states have call predecessors, (13074), 13034 states have call successors, (13074) [2022-07-21 13:56:39,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55339 states to 55339 states and 75477 transitions. [2022-07-21 13:56:39,130 INFO L78 Accepts]: Start accepts. Automaton has 55339 states and 75477 transitions. Word has length 163 [2022-07-21 13:56:39,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:56:39,134 INFO L495 AbstractCegarLoop]: Abstraction has 55339 states and 75477 transitions. [2022-07-21 13:56:39,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 13:56:39,135 INFO L276 IsEmpty]: Start isEmpty. Operand 55339 states and 75477 transitions. [2022-07-21 13:56:39,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-07-21 13:56:39,142 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:56:39,142 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:56:39,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 13:56:39,143 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:56:39,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:56:39,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1344588743, now seen corresponding path program 1 times [2022-07-21 13:56:39,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:56:39,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537687254] [2022-07-21 13:56:39,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:56:39,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:56:39,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:39,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:56:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:39,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:39,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:39,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:56:39,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:39,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:39,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:56:39,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:39,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:39,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:39,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:56:39,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:39,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:39,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:39,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:56:39,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:39,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:39,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 13:56:39,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:39,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 13:56:39,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:39,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 13:56:39,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:39,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 13:56:39,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:39,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 13:56:39,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:39,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 13:56:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:39,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 13:56:39,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:39,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:39,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:39,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 13:56:39,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:39,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-21 13:56:39,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:39,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 13:56:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:39,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-21 13:56:39,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:39,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-21 13:56:39,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:39,635 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-07-21 13:56:39,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:56:39,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537687254] [2022-07-21 13:56:39,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537687254] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:56:39,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:56:39,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:56:39,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538258147] [2022-07-21 13:56:39,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:56:39,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:56:39,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:56:39,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:56:39,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:56:39,638 INFO L87 Difference]: Start difference. First operand 55339 states and 75477 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 13:56:43,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:56:43,944 INFO L93 Difference]: Finished difference Result 55581 states and 75813 transitions. [2022-07-21 13:56:43,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:56:43,945 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 168 [2022-07-21 13:56:43,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:56:44,246 INFO L225 Difference]: With dead ends: 55581 [2022-07-21 13:56:44,246 INFO L226 Difference]: Without dead ends: 55579 [2022-07-21 13:56:44,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:56:44,266 INFO L413 NwaCegarLoop]: 2445 mSDtfsCounter, 2512 mSDsluCounter, 3973 mSDsCounter, 0 mSdLazyCounter, 2801 mSolverCounterSat, 919 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2811 SdHoareTripleChecker+Valid, 6418 SdHoareTripleChecker+Invalid, 3720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 919 IncrementalHoareTripleChecker+Valid, 2801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:56:44,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2811 Valid, 6418 Invalid, 3720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [919 Valid, 2801 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-21 13:56:44,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55579 states. [2022-07-21 13:56:45,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55579 to 55343. [2022-07-21 13:56:45,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55343 states, 38884 states have (on average 1.2696224668244007) internal successors, (49368), 39434 states have internal predecessors, (49368), 13038 states have call successors, (13038), 3491 states have call predecessors, (13038), 3418 states have return successors, (13074), 12677 states have call predecessors, (13074), 13034 states have call successors, (13074) [2022-07-21 13:56:46,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55343 states to 55343 states and 75480 transitions. [2022-07-21 13:56:46,036 INFO L78 Accepts]: Start accepts. Automaton has 55343 states and 75480 transitions. Word has length 168 [2022-07-21 13:56:46,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:56:46,036 INFO L495 AbstractCegarLoop]: Abstraction has 55343 states and 75480 transitions. [2022-07-21 13:56:46,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 13:56:46,037 INFO L276 IsEmpty]: Start isEmpty. Operand 55343 states and 75480 transitions. [2022-07-21 13:56:46,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-07-21 13:56:46,039 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:56:46,039 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-07-21 13:56:46,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 13:56:46,040 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:56:46,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:56:46,040 INFO L85 PathProgramCache]: Analyzing trace with hash 565130954, now seen corresponding path program 1 times [2022-07-21 13:56:46,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:56:46,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73665343] [2022-07-21 13:56:46,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:56:46,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:56:46,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:46,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:56:46,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:46,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:46,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:46,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:56:46,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:46,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:46,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:46,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:56:46,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:46,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:46,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:46,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:56:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:46,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:46,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:46,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:56:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:46,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:46,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 13:56:46,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:46,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 13:56:46,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:46,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 13:56:46,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:46,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 13:56:46,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:46,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 13:56:46,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:46,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 13:56:46,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:46,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 13:56:46,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:46,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:46,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:46,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 13:56:46,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:46,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-21 13:56:46,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:46,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-21 13:56:46,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:46,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-21 13:56:46,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:46,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:56:46,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:46,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-21 13:56:46,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:46,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-21 13:56:46,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:46,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 13:56:46,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:46,288 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2022-07-21 13:56:46,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:56:46,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73665343] [2022-07-21 13:56:46,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73665343] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:56:46,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:56:46,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 13:56:46,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053765786] [2022-07-21 13:56:46,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:56:46,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:56:46,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:56:46,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:56:46,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:56:46,291 INFO L87 Difference]: Start difference. First operand 55343 states and 75480 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-21 13:56:52,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:56:52,788 INFO L93 Difference]: Finished difference Result 110457 states and 150619 transitions. [2022-07-21 13:56:52,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 13:56:52,789 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 185 [2022-07-21 13:56:52,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:56:53,012 INFO L225 Difference]: With dead ends: 110457 [2022-07-21 13:56:53,013 INFO L226 Difference]: Without dead ends: 64982 [2022-07-21 13:56:53,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 13:56:53,115 INFO L413 NwaCegarLoop]: 2817 mSDtfsCounter, 3538 mSDsluCounter, 3437 mSDsCounter, 0 mSdLazyCounter, 2903 mSolverCounterSat, 2480 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3794 SdHoareTripleChecker+Valid, 6254 SdHoareTripleChecker+Invalid, 5383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2480 IncrementalHoareTripleChecker+Valid, 2903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-07-21 13:56:53,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3794 Valid, 6254 Invalid, 5383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2480 Valid, 2903 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-07-21 13:56:53,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64982 states. [2022-07-21 13:56:55,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64982 to 64698. [2022-07-21 13:56:55,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64698 states, 45552 states have (on average 1.2647962767825782) internal successors, (57614), 46162 states have internal predecessors, (57614), 15060 states have call successors, (15060), 4164 states have call predecessors, (15060), 4083 states have return successors, (15104), 14671 states have call predecessors, (15104), 15056 states have call successors, (15104) [2022-07-21 13:56:55,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64698 states to 64698 states and 87778 transitions. [2022-07-21 13:56:55,737 INFO L78 Accepts]: Start accepts. Automaton has 64698 states and 87778 transitions. Word has length 185 [2022-07-21 13:56:55,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:56:55,738 INFO L495 AbstractCegarLoop]: Abstraction has 64698 states and 87778 transitions. [2022-07-21 13:56:55,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-21 13:56:55,738 INFO L276 IsEmpty]: Start isEmpty. Operand 64698 states and 87778 transitions. [2022-07-21 13:56:55,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-21 13:56:55,741 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:56:55,742 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 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] [2022-07-21 13:56:55,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 13:56:55,742 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:56:55,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:56:55,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1755278562, now seen corresponding path program 1 times [2022-07-21 13:56:55,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:56:55,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950272573] [2022-07-21 13:56:55,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:56:55,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:56:55,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:55,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:56:55,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:55,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:55,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:55,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:56:55,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:55,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:55,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:55,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:56:55,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:55,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:55,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:56:55,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:55,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:55,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:55,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:56:55,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:55,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:55,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:55,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 13:56:55,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:55,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 13:56:55,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:55,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 13:56:55,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:55,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 13:56:55,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:55,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 13:56:55,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:55,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 13:56:55,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:55,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 13:56:55,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:55,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:56:55,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:55,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 13:56:55,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:55,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-21 13:56:55,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:55,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 13:56:55,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:55,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 13:56:55,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:55,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:56:55,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:56,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-21 13:56:56,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:56,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-21 13:56:56,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:56,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-21 13:56:56,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:56:56,013 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2022-07-21 13:56:56,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:56:56,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950272573] [2022-07-21 13:56:56,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950272573] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:56:56,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:56:56,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 13:56:56,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909255308] [2022-07-21 13:56:56,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:56:56,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:56:56,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:56:56,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:56:56,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:56:56,019 INFO L87 Difference]: Start difference. First operand 64698 states and 87778 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-21 13:57:03,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:57:03,484 INFO L93 Difference]: Finished difference Result 129028 states and 175189 transitions. [2022-07-21 13:57:03,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 13:57:03,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 184 [2022-07-21 13:57:03,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:57:03,895 INFO L225 Difference]: With dead ends: 129028 [2022-07-21 13:57:03,895 INFO L226 Difference]: Without dead ends: 64422 [2022-07-21 13:57:04,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 13:57:04,015 INFO L413 NwaCegarLoop]: 4329 mSDtfsCounter, 2702 mSDsluCounter, 4796 mSDsCounter, 0 mSdLazyCounter, 3069 mSolverCounterSat, 1863 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2957 SdHoareTripleChecker+Valid, 9125 SdHoareTripleChecker+Invalid, 4932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1863 IncrementalHoareTripleChecker+Valid, 3069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:57:04,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2957 Valid, 9125 Invalid, 4932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1863 Valid, 3069 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-07-21 13:57:04,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64422 states. [2022-07-21 13:57:05,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64422 to 64107. [2022-07-21 13:57:06,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64107 states, 45120 states have (on average 1.2647606382978724) internal successors, (57066), 45722 states have internal predecessors, (57066), 14953 states have call successors, (14953), 4112 states have call predecessors, (14953), 4031 states have return successors, (14997), 14572 states have call predecessors, (14997), 14949 states have call successors, (14997) [2022-07-21 13:57:06,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64107 states to 64107 states and 87016 transitions. [2022-07-21 13:57:06,276 INFO L78 Accepts]: Start accepts. Automaton has 64107 states and 87016 transitions. Word has length 184 [2022-07-21 13:57:06,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:57:06,277 INFO L495 AbstractCegarLoop]: Abstraction has 64107 states and 87016 transitions. [2022-07-21 13:57:06,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-21 13:57:06,277 INFO L276 IsEmpty]: Start isEmpty. Operand 64107 states and 87016 transitions. [2022-07-21 13:57:06,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-07-21 13:57:06,507 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:57:06,507 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:57:06,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-21 13:57:06,507 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:57:06,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:57:06,508 INFO L85 PathProgramCache]: Analyzing trace with hash -449147423, now seen corresponding path program 1 times [2022-07-21 13:57:06,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:57:06,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220875466] [2022-07-21 13:57:06,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:57:06,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:57:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:06,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:57:06,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:06,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:57:06,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:06,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:57:06,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:06,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:57:06,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:06,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:57:06,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:06,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:57:06,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:06,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:57:06,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:06,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:57:06,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:06,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:57:06,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:06,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:57:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:06,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 13:57:06,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:06,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 13:57:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:06,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 13:57:06,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:06,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 13:57:06,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:06,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 13:57:06,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:06,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 13:57:06,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:06,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 13:57:06,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:06,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:57:06,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:06,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 13:57:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:06,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-21 13:57:06,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:06,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 13:57:06,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:06,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-21 13:57:06,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:06,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-21 13:57:06,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:06,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 13:57:06,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:06,855 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-07-21 13:57:06,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:57:06,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220875466] [2022-07-21 13:57:06,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220875466] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:57:06,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:57:06,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:57:06,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139379206] [2022-07-21 13:57:06,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:57:06,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:57:06,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:57:06,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:57:06,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:57:06,858 INFO L87 Difference]: Start difference. First operand 64107 states and 87016 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 13:57:11,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:57:11,349 INFO L93 Difference]: Finished difference Result 65643 states and 88329 transitions. [2022-07-21 13:57:11,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 13:57:11,350 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 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 173 [2022-07-21 13:57:11,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:57:11,582 INFO L225 Difference]: With dead ends: 65643 [2022-07-21 13:57:11,582 INFO L226 Difference]: Without dead ends: 65641 [2022-07-21 13:57:11,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:57:11,614 INFO L413 NwaCegarLoop]: 2458 mSDtfsCounter, 2468 mSDsluCounter, 3985 mSDsCounter, 0 mSdLazyCounter, 2942 mSolverCounterSat, 850 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2779 SdHoareTripleChecker+Valid, 6443 SdHoareTripleChecker+Invalid, 3792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 850 IncrementalHoareTripleChecker+Valid, 2942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-21 13:57:11,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2779 Valid, 6443 Invalid, 3792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [850 Valid, 2942 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-21 13:57:11,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65641 states. [2022-07-21 13:57:13,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65641 to 65359. [2022-07-21 13:57:13,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65359 states, 45994 states have (on average 1.2608383702222028) internal successors, (57991), 46596 states have internal predecessors, (57991), 14953 states have call successors, (14953), 4490 states have call predecessors, (14953), 4409 states have return successors, (14997), 14572 states have call predecessors, (14997), 14949 states have call successors, (14997) [2022-07-21 13:57:14,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65359 states to 65359 states and 87941 transitions. [2022-07-21 13:57:14,157 INFO L78 Accepts]: Start accepts. Automaton has 65359 states and 87941 transitions. Word has length 173 [2022-07-21 13:57:14,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:57:14,158 INFO L495 AbstractCegarLoop]: Abstraction has 65359 states and 87941 transitions. [2022-07-21 13:57:14,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 13:57:14,158 INFO L276 IsEmpty]: Start isEmpty. Operand 65359 states and 87941 transitions. [2022-07-21 13:57:14,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-21 13:57:14,161 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:57:14,162 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:57:14,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-21 13:57:14,162 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:57:14,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:57:14,162 INFO L85 PathProgramCache]: Analyzing trace with hash 827725049, now seen corresponding path program 1 times [2022-07-21 13:57:14,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:57:14,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507265322] [2022-07-21 13:57:14,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:57:14,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:57:14,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:14,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:57:14,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:14,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:57:14,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:14,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:57:14,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:14,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:57:14,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:14,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:57:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:14,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:57:14,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:14,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:57:14,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:14,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:57:14,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:14,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:57:14,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:14,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:57:14,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:14,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 13:57:14,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:14,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 13:57:14,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:14,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 13:57:14,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:14,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 13:57:14,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:14,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 13:57:14,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:14,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 13:57:14,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:14,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 13:57:14,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:14,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:57:14,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:14,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 13:57:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:14,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-21 13:57:14,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:14,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 13:57:14,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:14,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-21 13:57:14,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:14,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-21 13:57:14,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:14,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 13:57:14,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:14,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-21 13:57:14,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:57:14,453 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2022-07-21 13:57:14,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:57:14,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507265322] [2022-07-21 13:57:14,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507265322] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:57:14,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:57:14,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:57:14,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784856786] [2022-07-21 13:57:14,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:57:14,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:57:14,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:57:14,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:57:14,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:57:14,456 INFO L87 Difference]: Start difference. First operand 65359 states and 87941 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 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)