./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.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 67e7778ced54570c612880d3f2f5d48e6e2d3dc55afd632628e45d31cdc74c58 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 15:32:43,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 15:32:43,197 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 15:32:43,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 15:32:43,243 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 15:32:43,247 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 15:32:43,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 15:32:43,253 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 15:32:43,255 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 15:32:43,261 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 15:32:43,261 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 15:32:43,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 15:32:43,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 15:32:43,266 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 15:32:43,267 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 15:32:43,271 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 15:32:43,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 15:32:43,273 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 15:32:43,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 15:32:43,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 15:32:43,281 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 15:32:43,282 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 15:32:43,284 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 15:32:43,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 15:32:43,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 15:32:43,290 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 15:32:43,290 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 15:32:43,292 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 15:32:43,292 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 15:32:43,293 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 15:32:43,294 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 15:32:43,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 15:32:43,296 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 15:32:43,297 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 15:32:43,298 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 15:32:43,298 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 15:32:43,299 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 15:32:43,299 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 15:32:43,299 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 15:32:43,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 15:32:43,301 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 15:32:43,302 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 15:32:43,334 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 15:32:43,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 15:32:43,335 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 15:32:43,335 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 15:32:43,336 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 15:32:43,337 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 15:32:43,337 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 15:32:43,337 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 15:32:43,338 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 15:32:43,338 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 15:32:43,339 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 15:32:43,339 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 15:32:43,339 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 15:32:43,339 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 15:32:43,340 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 15:32:43,340 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 15:32:43,340 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 15:32:43,340 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 15:32:43,341 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 15:32:43,341 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 15:32:43,341 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 15:32:43,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:32:43,341 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 15:32:43,342 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 15:32:43,342 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 15:32:43,342 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 15:32:43,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 15:32:43,344 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 15:32:43,344 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 15:32:43,344 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 15:32:43,344 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 15:32:43,345 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67e7778ced54570c612880d3f2f5d48e6e2d3dc55afd632628e45d31cdc74c58 [2021-12-22 15:32:43,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 15:32:43,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 15:32:43,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 15:32:43,610 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 15:32:43,611 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 15:32:43,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2021-12-22 15:32:43,678 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/109dcaa10/b60ad4d82d4d4c2ab6346b458635489b/FLAG9623b497a [2021-12-22 15:32:44,405 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 15:32:44,405 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2021-12-22 15:32:44,471 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/109dcaa10/b60ad4d82d4d4c2ab6346b458635489b/FLAG9623b497a [2021-12-22 15:32:44,976 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/109dcaa10/b60ad4d82d4d4c2ab6346b458635489b [2021-12-22 15:32:44,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 15:32:44,982 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 15:32:44,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 15:32:44,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 15:32:44,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 15:32:44,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:32:44" (1/1) ... [2021-12-22 15:32:44,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17995923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:32:44, skipping insertion in model container [2021-12-22 15:32:44,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:32:44" (1/1) ... [2021-12-22 15:32:44,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 15:32:45,101 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 15:32:47,526 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329615,329628] [2021-12-22 15:32:47,529 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329784,329797] [2021-12-22 15:32:47,529 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329951,329964] [2021-12-22 15:32:47,530 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[330119,330132] [2021-12-22 15:32:47,545 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:32:47,568 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 15:32:47,910 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329615,329628] [2021-12-22 15:32:47,911 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329784,329797] [2021-12-22 15:32:47,911 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329951,329964] [2021-12-22 15:32:47,912 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[330119,330132] [2021-12-22 15:32:47,919 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:32:48,044 INFO L208 MainTranslator]: Completed translation [2021-12-22 15:32:48,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:32:48 WrapperNode [2021-12-22 15:32:48,045 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 15:32:48,046 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 15:32:48,046 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 15:32:48,046 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 15:32:48,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:32:48" (1/1) ... [2021-12-22 15:32:48,141 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:32:48" (1/1) ... [2021-12-22 15:32:48,330 INFO L137 Inliner]: procedures = 395, calls = 2038, calls flagged for inlining = 159, calls inlined = 138, statements flattened = 4304 [2021-12-22 15:32:48,331 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 15:32:48,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 15:32:48,332 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 15:32:48,333 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 15:32:48,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:32:48" (1/1) ... [2021-12-22 15:32:48,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:32:48" (1/1) ... [2021-12-22 15:32:48,379 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:32:48" (1/1) ... [2021-12-22 15:32:48,380 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:32:48" (1/1) ... [2021-12-22 15:32:48,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:32:48" (1/1) ... [2021-12-22 15:32:48,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:32:48" (1/1) ... [2021-12-22 15:32:48,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:32:48" (1/1) ... [2021-12-22 15:32:48,539 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 15:32:48,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 15:32:48,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 15:32:48,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 15:32:48,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:32:48" (1/1) ... [2021-12-22 15:32:48,551 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:32:48,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:32:48,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 15:32:48,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 15:32:48,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-22 15:32:48,615 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-22 15:32:48,616 INFO L130 BoogieDeclarations]: Found specification of procedure RxCurCount [2021-12-22 15:32:48,616 INFO L138 BoogieDeclarations]: Found implementation of procedure RxCurCount [2021-12-22 15:32:48,616 INFO L130 BoogieDeclarations]: Found specification of procedure irda_setup_dma [2021-12-22 15:32:48,616 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_setup_dma [2021-12-22 15:32:48,616 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-22 15:32:48,617 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-22 15:32:48,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 15:32:48,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 15:32:48,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_73 [2021-12-22 15:32:48,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_73 [2021-12-22 15:32:48,618 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-22 15:32:48,618 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-22 15:32:48,618 INFO L130 BoogieDeclarations]: Found specification of procedure CheckRegBit [2021-12-22 15:32:48,618 INFO L138 BoogieDeclarations]: Found implementation of procedure CheckRegBit [2021-12-22 15:32:48,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-22 15:32:48,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-22 15:32:48,619 INFO L130 BoogieDeclarations]: Found specification of procedure via_remove_one [2021-12-22 15:32:48,619 INFO L138 BoogieDeclarations]: Found implementation of procedure via_remove_one [2021-12-22 15:32:48,619 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_speed [2021-12-22 15:32:48,619 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_speed [2021-12-22 15:32:48,619 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2021-12-22 15:32:48,619 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2021-12-22 15:32:48,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-22 15:32:48,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-22 15:32:48,620 INFO L130 BoogieDeclarations]: Found specification of procedure SetPulseWidth [2021-12-22 15:32:48,620 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPulseWidth [2021-12-22 15:32:48,620 INFO L130 BoogieDeclarations]: Found specification of procedure Tdelay [2021-12-22 15:32:48,620 INFO L138 BoogieDeclarations]: Found implementation of procedure Tdelay [2021-12-22 15:32:48,620 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-12-22 15:32:48,621 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-12-22 15:32:48,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-22 15:32:48,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-22 15:32:48,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 15:32:48,621 INFO L130 BoogieDeclarations]: Found specification of procedure ClkTx [2021-12-22 15:32:48,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ClkTx [2021-12-22 15:32:48,622 INFO L130 BoogieDeclarations]: Found specification of procedure WriteLPCReg [2021-12-22 15:32:48,622 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteLPCReg [2021-12-22 15:32:48,622 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-22 15:32:48,622 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-22 15:32:48,623 INFO L130 BoogieDeclarations]: Found specification of procedure CommonInit [2021-12-22 15:32:48,623 INFO L138 BoogieDeclarations]: Found implementation of procedure CommonInit [2021-12-22 15:32:48,623 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-22 15:32:48,623 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-22 15:32:48,623 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_dongle_speed [2021-12-22 15:32:48,624 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_dongle_speed [2021-12-22 15:32:48,624 INFO L130 BoogieDeclarations]: Found specification of procedure ReadLPCReg [2021-12-22 15:32:48,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadLPCReg [2021-12-22 15:32:48,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 15:32:48,625 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma [2021-12-22 15:32:48,626 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma [2021-12-22 15:32:48,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_via_ircc_cb [2021-12-22 15:32:48,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_via_ircc_cb [2021-12-22 15:32:48,627 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_receive [2021-12-22 15:32:48,627 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_receive [2021-12-22 15:32:48,627 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-22 15:32:48,627 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-22 15:32:48,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 15:32:48,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-22 15:32:48,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-22 15:32:48,628 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_close [2021-12-22 15:32:48,628 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_close [2021-12-22 15:32:48,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 15:32:48,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 15:32:48,629 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 15:32:48,629 INFO L130 BoogieDeclarations]: Found specification of procedure CkRxRecv [2021-12-22 15:32:48,629 INFO L138 BoogieDeclarations]: Found implementation of procedure CkRxRecv [2021-12-22 15:32:48,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-22 15:32:48,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-22 15:32:48,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-22 15:32:48,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-22 15:32:48,630 INFO L130 BoogieDeclarations]: Found specification of procedure irda_get_next_speed [2021-12-22 15:32:48,630 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_get_next_speed [2021-12-22 15:32:48,630 INFO L130 BoogieDeclarations]: Found specification of procedure ReadReg [2021-12-22 15:32:48,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadReg [2021-12-22 15:32:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_open [2021-12-22 15:32:48,631 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_open [2021-12-22 15:32:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-22 15:32:48,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-22 15:32:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure WriteRegBit [2021-12-22 15:32:48,631 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteRegBit [2021-12-22 15:32:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 15:32:48,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-22 15:32:48,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-22 15:32:48,632 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Indx [2021-12-22 15:32:48,633 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Indx [2021-12-22 15:32:48,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 15:32:48,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-22 15:32:48,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-22 15:32:48,634 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-22 15:32:48,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-22 15:32:48,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 15:32:48,634 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 15:32:48,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 15:32:48,634 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-22 15:32:48,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-22 15:32:48,635 INFO L130 BoogieDeclarations]: Found specification of procedure WriteReg [2021-12-22 15:32:48,635 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteReg [2021-12-22 15:32:48,635 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-22 15:32:48,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-22 15:32:48,635 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-22 15:32:48,635 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-22 15:32:48,636 INFO L130 BoogieDeclarations]: Found specification of procedure SetBaudRate [2021-12-22 15:32:48,636 INFO L138 BoogieDeclarations]: Found implementation of procedure SetBaudRate [2021-12-22 15:32:48,636 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Byte [2021-12-22 15:32:48,636 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Byte [2021-12-22 15:32:48,636 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-22 15:32:48,637 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-22 15:32:48,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-22 15:32:48,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-22 15:32:48,637 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_open [2021-12-22 15:32:48,638 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_open [2021-12-22 15:32:48,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 15:32:48,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 15:32:48,638 INFO L130 BoogieDeclarations]: Found specification of procedure ResetChip [2021-12-22 15:32:48,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ResetChip [2021-12-22 15:32:48,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 15:32:48,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 15:32:48,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 15:32:48,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 15:32:48,639 INFO L130 BoogieDeclarations]: Found specification of procedure irda_device_txqueue_empty [2021-12-22 15:32:48,639 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_device_txqueue_empty [2021-12-22 15:32:48,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-22 15:32:48,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-22 15:32:48,640 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2021-12-22 15:32:48,640 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2021-12-22 15:32:48,640 INFO L130 BoogieDeclarations]: Found specification of procedure Sdelay [2021-12-22 15:32:48,640 INFO L138 BoogieDeclarations]: Found implementation of procedure Sdelay [2021-12-22 15:32:48,640 INFO L130 BoogieDeclarations]: Found specification of procedure SetSIR [2021-12-22 15:32:48,640 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSIR [2021-12-22 15:32:48,640 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-22 15:32:48,641 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-22 15:32:48,641 INFO L130 BoogieDeclarations]: Found specification of procedure SetMaxRxPacketSize [2021-12-22 15:32:48,641 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMaxRxPacketSize [2021-12-22 15:32:48,641 INFO L130 BoogieDeclarations]: Found specification of procedure GetRecvByte [2021-12-22 15:32:48,641 INFO L138 BoogieDeclarations]: Found implementation of procedure GetRecvByte [2021-12-22 15:32:48,641 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-22 15:32:48,641 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-22 15:32:48,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 15:32:48,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 15:32:48,642 INFO L130 BoogieDeclarations]: Found specification of procedure hwreset [2021-12-22 15:32:48,642 INFO L138 BoogieDeclarations]: Found implementation of procedure hwreset [2021-12-22 15:32:48,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 15:32:48,642 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-22 15:32:48,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-22 15:32:48,642 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-12-22 15:32:48,643 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-12-22 15:32:48,643 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-22 15:32:48,643 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-22 15:32:48,643 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-22 15:32:48,643 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-22 15:32:48,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-22 15:32:48,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-22 15:32:48,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-22 15:32:48,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-22 15:32:48,644 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_xmit [2021-12-22 15:32:48,644 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_xmit [2021-12-22 15:32:48,644 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-22 15:32:48,644 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-22 15:32:48,644 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-22 15:32:48,644 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-22 15:32:48,645 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-22 15:32:48,645 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-22 15:32:48,645 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-22 15:32:48,645 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-22 15:32:48,645 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-22 15:32:48,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-22 15:32:48,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 15:32:48,645 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-12-22 15:32:48,646 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-12-22 15:32:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendByte [2021-12-22 15:32:48,646 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendByte [2021-12-22 15:32:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-12-22 15:32:48,646 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-12-22 15:32:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 15:32:48,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 15:32:48,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2021-12-22 15:32:48,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2021-12-22 15:32:48,647 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendPreambleCount [2021-12-22 15:32:48,647 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendPreambleCount [2021-12-22 15:32:48,647 INFO L130 BoogieDeclarations]: Found specification of procedure InitCard [2021-12-22 15:32:48,647 INFO L138 BoogieDeclarations]: Found implementation of procedure InitCard [2021-12-22 15:32:48,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-22 15:32:48,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-22 15:32:48,648 INFO L130 BoogieDeclarations]: Found specification of procedure SetTimer [2021-12-22 15:32:48,648 INFO L138 BoogieDeclarations]: Found implementation of procedure SetTimer [2021-12-22 15:32:48,648 INFO L130 BoogieDeclarations]: Found specification of procedure ActClk [2021-12-22 15:32:48,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ActClk [2021-12-22 15:32:48,648 INFO L130 BoogieDeclarations]: Found specification of procedure request_dma [2021-12-22 15:32:48,648 INFO L138 BoogieDeclarations]: Found implementation of procedure request_dma [2021-12-22 15:32:48,649 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-22 15:32:48,649 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-22 15:32:48,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 15:32:48,649 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2021-12-22 15:32:48,649 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2021-12-22 15:32:48,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-22 15:32:48,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-22 15:32:48,649 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2021-12-22 15:32:48,650 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2021-12-22 15:32:49,386 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 15:32:49,392 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 15:32:49,626 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 15:32:52,218 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-22 15:32:52,596 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 15:32:52,619 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 15:32:52,620 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 15:32:52,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:32:52 BoogieIcfgContainer [2021-12-22 15:32:52,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 15:32:52,626 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 15:32:52,626 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 15:32:52,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 15:32:52,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:32:44" (1/3) ... [2021-12-22 15:32:52,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bc3ec36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:32:52, skipping insertion in model container [2021-12-22 15:32:52,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:32:48" (2/3) ... [2021-12-22 15:32:52,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bc3ec36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:32:52, skipping insertion in model container [2021-12-22 15:32:52,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:32:52" (3/3) ... [2021-12-22 15:32:52,636 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2021-12-22 15:32:52,641 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 15:32:52,641 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-22 15:32:52,706 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 15:32:52,723 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 15:32:52,723 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-22 15:32:52,785 INFO L276 IsEmpty]: Start isEmpty. Operand has 1916 states, 1168 states have (on average 1.2671232876712328) internal successors, (1480), 1194 states have internal predecessors, (1480), 654 states have call successors, (654), 92 states have call predecessors, (654), 91 states have return successors, (650), 638 states have call predecessors, (650), 650 states have call successors, (650) [2021-12-22 15:32:52,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-22 15:32:52,795 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:32:52,796 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:32:52,796 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:32:52,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:32:52,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1683585667, now seen corresponding path program 1 times [2021-12-22 15:32:52,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:32:52,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304342375] [2021-12-22 15:32:52,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:32:52,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:32:53,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:53,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:32:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:53,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:53,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:53,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:32:53,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:53,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:53,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:53,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:32:53,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:53,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:53,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:53,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:32:53,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:53,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:53,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:53,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:32:53,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:53,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:32:53,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:53,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-22 15:32:53,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:53,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:32:53,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:32:53,492 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-22 15:32:53,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:32:53,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304342375] [2021-12-22 15:32:53,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304342375] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:32:53,507 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:32:53,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 15:32:53,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844251781] [2021-12-22 15:32:53,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:32:53,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 15:32:53,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:32:53,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 15:32:53,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:32:53,547 INFO L87 Difference]: Start difference. First operand has 1916 states, 1168 states have (on average 1.2671232876712328) internal successors, (1480), 1194 states have internal predecessors, (1480), 654 states have call successors, (654), 92 states have call predecessors, (654), 91 states have return successors, (650), 638 states have call predecessors, (650), 650 states have call successors, (650) Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-22 15:32:56,692 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:33:00,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:33:00,758 INFO L93 Difference]: Finished difference Result 5668 states and 8310 transitions. [2021-12-22 15:33:00,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:33:00,767 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 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 79 [2021-12-22 15:33:00,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:33:00,828 INFO L225 Difference]: With dead ends: 5668 [2021-12-22 15:33:00,828 INFO L226 Difference]: Without dead ends: 3758 [2021-12-22 15:33:00,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:33:00,852 INFO L933 BasicCegarLoop]: 2686 mSDtfsCounter, 3173 mSDsluCounter, 2403 mSDsCounter, 0 mSdLazyCounter, 2387 mSolverCounterSat, 2339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3794 SdHoareTripleChecker+Valid, 5089 SdHoareTripleChecker+Invalid, 4726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2339 IncrementalHoareTripleChecker+Valid, 2387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-12-22 15:33:00,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3794 Valid, 5089 Invalid, 4726 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2339 Valid, 2387 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2021-12-22 15:33:00,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3758 states. [2021-12-22 15:33:01,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3758 to 3726. [2021-12-22 15:33:01,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3726 states, 2276 states have (on average 1.2640597539543057) internal successors, (2877), 2326 states have internal predecessors, (2877), 1268 states have call successors, (1268), 180 states have call predecessors, (1268), 179 states have return successors, (1265), 1241 states have call predecessors, (1265), 1265 states have call successors, (1265) [2021-12-22 15:33:01,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3726 states to 3726 states and 5410 transitions. [2021-12-22 15:33:01,218 INFO L78 Accepts]: Start accepts. Automaton has 3726 states and 5410 transitions. Word has length 79 [2021-12-22 15:33:01,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:33:01,219 INFO L470 AbstractCegarLoop]: Abstraction has 3726 states and 5410 transitions. [2021-12-22 15:33:01,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-22 15:33:01,220 INFO L276 IsEmpty]: Start isEmpty. Operand 3726 states and 5410 transitions. [2021-12-22 15:33:01,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-22 15:33:01,223 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:33:01,224 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:33:01,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 15:33:01,224 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:33:01,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:33:01,225 INFO L85 PathProgramCache]: Analyzing trace with hash 133917900, now seen corresponding path program 1 times [2021-12-22 15:33:01,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:33:01,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694220549] [2021-12-22 15:33:01,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:33:01,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:33:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:01,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:33:01,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:01,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:01,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:01,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:33:01,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:01,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:01,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:01,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:33:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:01,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:01,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:33:01,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:01,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:01,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:01,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:33:01,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:01,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:01,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:01,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-22 15:33:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:01,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 15:33:01,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:01,479 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-22 15:33:01,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:33:01,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694220549] [2021-12-22 15:33:01,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694220549] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:33:01,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:33:01,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 15:33:01,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498779038] [2021-12-22 15:33:01,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:33:01,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 15:33:01,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:33:01,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 15:33:01,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:33:01,488 INFO L87 Difference]: Start difference. First operand 3726 states and 5410 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-22 15:33:03,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:33:07,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:33:07,777 INFO L93 Difference]: Finished difference Result 10364 states and 15087 transitions. [2021-12-22 15:33:07,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:33:07,778 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 83 [2021-12-22 15:33:07,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:33:07,833 INFO L225 Difference]: With dead ends: 10364 [2021-12-22 15:33:07,834 INFO L226 Difference]: Without dead ends: 6653 [2021-12-22 15:33:07,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:33:07,860 INFO L933 BasicCegarLoop]: 2652 mSDtfsCounter, 2655 mSDsluCounter, 2439 mSDsCounter, 0 mSdLazyCounter, 2269 mSolverCounterSat, 2132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3199 SdHoareTripleChecker+Valid, 5091 SdHoareTripleChecker+Invalid, 4401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2132 IncrementalHoareTripleChecker+Valid, 2269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-12-22 15:33:07,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3199 Valid, 5091 Invalid, 4401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2132 Valid, 2269 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2021-12-22 15:33:07,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6653 states. [2021-12-22 15:33:08,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6653 to 6584. [2021-12-22 15:33:08,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6584 states, 3985 states have (on average 1.256210790464241) internal successors, (5006), 4085 states have internal predecessors, (5006), 2267 states have call successors, (2267), 330 states have call predecessors, (2267), 329 states have return successors, (2302), 2208 states have call predecessors, (2302), 2264 states have call successors, (2302) [2021-12-22 15:33:08,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6584 states to 6584 states and 9575 transitions. [2021-12-22 15:33:08,256 INFO L78 Accepts]: Start accepts. Automaton has 6584 states and 9575 transitions. Word has length 83 [2021-12-22 15:33:08,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:33:08,258 INFO L470 AbstractCegarLoop]: Abstraction has 6584 states and 9575 transitions. [2021-12-22 15:33:08,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-22 15:33:08,259 INFO L276 IsEmpty]: Start isEmpty. Operand 6584 states and 9575 transitions. [2021-12-22 15:33:08,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-22 15:33:08,264 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:33:08,264 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:33:08,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 15:33:08,265 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:33:08,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:33:08,265 INFO L85 PathProgramCache]: Analyzing trace with hash 593600064, now seen corresponding path program 1 times [2021-12-22 15:33:08,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:33:08,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063100922] [2021-12-22 15:33:08,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:33:08,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:33:08,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:08,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:33:08,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:08,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:08,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:08,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:33:08,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:08,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:08,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:08,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:33:08,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:08,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:08,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:08,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:33:08,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:08,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:08,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:08,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:33:08,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:08,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:08,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:08,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-22 15:33:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:08,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 15:33:08,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:08,526 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-22 15:33:08,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:33:08,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063100922] [2021-12-22 15:33:08,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063100922] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:33:08,527 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:33:08,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 15:33:08,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778674064] [2021-12-22 15:33:08,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:33:08,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 15:33:08,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:33:08,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 15:33:08,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:33:08,531 INFO L87 Difference]: Start difference. First operand 6584 states and 9575 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-22 15:33:14,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:33:14,322 INFO L93 Difference]: Finished difference Result 18862 states and 27498 transitions. [2021-12-22 15:33:14,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:33:14,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (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 87 [2021-12-22 15:33:14,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:33:14,414 INFO L225 Difference]: With dead ends: 18862 [2021-12-22 15:33:14,414 INFO L226 Difference]: Without dead ends: 12293 [2021-12-22 15:33:14,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:33:14,457 INFO L933 BasicCegarLoop]: 2656 mSDtfsCounter, 3007 mSDsluCounter, 2412 mSDsCounter, 0 mSdLazyCounter, 2349 mSolverCounterSat, 2339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3580 SdHoareTripleChecker+Valid, 5068 SdHoareTripleChecker+Invalid, 4688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2339 IncrementalHoareTripleChecker+Valid, 2349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-12-22 15:33:14,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3580 Valid, 5068 Invalid, 4688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2339 Valid, 2349 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2021-12-22 15:33:14,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12293 states. [2021-12-22 15:33:15,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12293 to 12188. [2021-12-22 15:33:15,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12188 states, 7367 states have (on average 1.2547848513641917) internal successors, (9244), 7569 states have internal predecessors, (9244), 4205 states have call successors, (4205), 622 states have call predecessors, (4205), 613 states have return successors, (4294), 4068 states have call predecessors, (4294), 4202 states have call successors, (4294) [2021-12-22 15:33:15,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12188 states to 12188 states and 17743 transitions. [2021-12-22 15:33:15,274 INFO L78 Accepts]: Start accepts. Automaton has 12188 states and 17743 transitions. Word has length 87 [2021-12-22 15:33:15,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:33:15,275 INFO L470 AbstractCegarLoop]: Abstraction has 12188 states and 17743 transitions. [2021-12-22 15:33:15,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-22 15:33:15,276 INFO L276 IsEmpty]: Start isEmpty. Operand 12188 states and 17743 transitions. [2021-12-22 15:33:15,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-22 15:33:15,284 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:33:15,284 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:33:15,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 15:33:15,285 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:33:15,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:33:15,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1823001785, now seen corresponding path program 1 times [2021-12-22 15:33:15,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:33:15,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303861648] [2021-12-22 15:33:15,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:33:15,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:33:15,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:15,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:33:15,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:15,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:15,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:15,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:33:15,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:15,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:15,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:15,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:33:15,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:15,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:15,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:15,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:33:15,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:15,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:15,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:15,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:33:15,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:15,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:15,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:15,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-22 15:33:15,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:15,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-22 15:33:15,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:15,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-22 15:33:15,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:15,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 15:33:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:15,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-22 15:33:15,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:15,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:15,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:15,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-22 15:33:15,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:15,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-22 15:33:15,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:15,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 15:33:15,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:15,545 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2021-12-22 15:33:15,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:33:15,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303861648] [2021-12-22 15:33:15,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303861648] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:33:15,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:33:15,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 15:33:15,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235406538] [2021-12-22 15:33:15,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:33:15,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 15:33:15,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:33:15,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 15:33:15,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:33:15,549 INFO L87 Difference]: Start difference. First operand 12188 states and 17743 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-22 15:33:20,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:33:20,608 INFO L93 Difference]: Finished difference Result 24525 states and 35731 transitions. [2021-12-22 15:33:20,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:33:20,608 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 134 [2021-12-22 15:33:20,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:33:20,732 INFO L225 Difference]: With dead ends: 24525 [2021-12-22 15:33:20,733 INFO L226 Difference]: Without dead ends: 18302 [2021-12-22 15:33:20,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:33:20,778 INFO L933 BasicCegarLoop]: 4702 mSDtfsCounter, 2445 mSDsluCounter, 3094 mSDsCounter, 0 mSdLazyCounter, 2419 mSolverCounterSat, 1755 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3059 SdHoareTripleChecker+Valid, 7796 SdHoareTripleChecker+Invalid, 4174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1755 IncrementalHoareTripleChecker+Valid, 2419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-12-22 15:33:20,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3059 Valid, 7796 Invalid, 4174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1755 Valid, 2419 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2021-12-22 15:33:20,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18302 states. [2021-12-22 15:33:21,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18302 to 18182. [2021-12-22 15:33:21,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18182 states, 10985 states have (on average 1.2548020027309967) internal successors, (13784), 11283 states have internal predecessors, (13784), 6275 states have call successors, (6275), 932 states have call predecessors, (6275), 919 states have return successors, (6410), 6074 states have call predecessors, (6410), 6272 states have call successors, (6410) [2021-12-22 15:33:21,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18182 states to 18182 states and 26469 transitions. [2021-12-22 15:33:21,874 INFO L78 Accepts]: Start accepts. Automaton has 18182 states and 26469 transitions. Word has length 134 [2021-12-22 15:33:21,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:33:21,875 INFO L470 AbstractCegarLoop]: Abstraction has 18182 states and 26469 transitions. [2021-12-22 15:33:21,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-22 15:33:21,876 INFO L276 IsEmpty]: Start isEmpty. Operand 18182 states and 26469 transitions. [2021-12-22 15:33:21,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-22 15:33:21,879 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:33:21,879 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:33:21,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 15:33:21,879 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:33:21,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:33:21,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1400299959, now seen corresponding path program 1 times [2021-12-22 15:33:21,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:33:21,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138855915] [2021-12-22 15:33:21,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:33:21,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:33:21,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:22,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:33:22,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:22,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:22,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:22,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:33:22,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:22,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:22,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:22,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:33:22,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:22,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:22,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:22,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:33:22,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:22,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:22,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:22,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:33:22,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:22,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:22,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:22,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-22 15:33:22,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:22,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-22 15:33:22,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:22,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-22 15:33:22,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:22,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 15:33:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:22,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-22 15:33:22,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:22,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:22,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:22,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-22 15:33:22,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:22,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-22 15:33:22,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:22,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 15:33:22,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:22,247 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2021-12-22 15:33:22,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:33:22,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138855915] [2021-12-22 15:33:22,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138855915] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:33:22,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:33:22,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:33:22,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690587979] [2021-12-22 15:33:22,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:33:22,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:33:22,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:33:22,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:33:22,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:33:22,250 INFO L87 Difference]: Start difference. First operand 18182 states and 26469 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-22 15:33:27,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:33:27,805 INFO L93 Difference]: Finished difference Result 18284 states and 26665 transitions. [2021-12-22 15:33:27,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 15:33:27,805 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 134 [2021-12-22 15:33:27,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:33:27,924 INFO L225 Difference]: With dead ends: 18284 [2021-12-22 15:33:27,924 INFO L226 Difference]: Without dead ends: 18282 [2021-12-22 15:33:27,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-22 15:33:27,943 INFO L933 BasicCegarLoop]: 2390 mSDtfsCounter, 2479 mSDsluCounter, 4104 mSDsCounter, 0 mSdLazyCounter, 2847 mSolverCounterSat, 1753 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2733 SdHoareTripleChecker+Valid, 6494 SdHoareTripleChecker+Invalid, 4600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1753 IncrementalHoareTripleChecker+Valid, 2847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-12-22 15:33:27,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2733 Valid, 6494 Invalid, 4600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1753 Valid, 2847 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2021-12-22 15:33:27,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18282 states. [2021-12-22 15:33:28,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18282 to 18186. [2021-12-22 15:33:28,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18186 states, 10988 states have (on average 1.2547324353840554) internal successors, (13787), 11286 states have internal predecessors, (13787), 6275 states have call successors, (6275), 933 states have call predecessors, (6275), 920 states have return successors, (6410), 6074 states have call predecessors, (6410), 6272 states have call successors, (6410) [2021-12-22 15:33:29,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18186 states to 18186 states and 26472 transitions. [2021-12-22 15:33:29,097 INFO L78 Accepts]: Start accepts. Automaton has 18186 states and 26472 transitions. Word has length 134 [2021-12-22 15:33:29,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:33:29,099 INFO L470 AbstractCegarLoop]: Abstraction has 18186 states and 26472 transitions. [2021-12-22 15:33:29,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-22 15:33:29,099 INFO L276 IsEmpty]: Start isEmpty. Operand 18186 states and 26472 transitions. [2021-12-22 15:33:29,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-12-22 15:33:29,104 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:33:29,104 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:33:29,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 15:33:29,104 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:33:29,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:33:29,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1077871985, now seen corresponding path program 1 times [2021-12-22 15:33:29,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:33:29,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136923809] [2021-12-22 15:33:29,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:33:29,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:33:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:29,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:33:29,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:29,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:29,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:33:29,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:29,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:29,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:29,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:33:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:29,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:29,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:29,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:33:29,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:29,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:29,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:29,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:33:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:29,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:29,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:29,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-22 15:33:29,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:29,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-22 15:33:29,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:29,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-22 15:33:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:29,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 15:33:29,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:29,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-22 15:33:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:29,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:29,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:29,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-22 15:33:29,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:29,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-22 15:33:29,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:29,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 15:33:29,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:29,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 15:33:29,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:29,408 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2021-12-22 15:33:29,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:33:29,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136923809] [2021-12-22 15:33:29,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136923809] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:33:29,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:33:29,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:33:29,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471493442] [2021-12-22 15:33:29,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:33:29,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:33:29,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:33:29,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:33:29,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:33:29,411 INFO L87 Difference]: Start difference. First operand 18186 states and 26472 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-22 15:33:34,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:33:34,041 INFO L93 Difference]: Finished difference Result 18288 states and 26668 transitions. [2021-12-22 15:33:34,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 15:33:34,041 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 139 [2021-12-22 15:33:34,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:33:34,171 INFO L225 Difference]: With dead ends: 18288 [2021-12-22 15:33:34,171 INFO L226 Difference]: Without dead ends: 18286 [2021-12-22 15:33:34,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-22 15:33:34,193 INFO L933 BasicCegarLoop]: 2394 mSDtfsCounter, 2471 mSDsluCounter, 4107 mSDsCounter, 0 mSdLazyCounter, 2847 mSolverCounterSat, 1752 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2724 SdHoareTripleChecker+Valid, 6501 SdHoareTripleChecker+Invalid, 4599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1752 IncrementalHoareTripleChecker+Valid, 2847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-22 15:33:34,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2724 Valid, 6501 Invalid, 4599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1752 Valid, 2847 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2021-12-22 15:33:34,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18286 states. [2021-12-22 15:33:35,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18286 to 18190. [2021-12-22 15:33:35,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18190 states, 10991 states have (on average 1.2546629060140115) internal successors, (13790), 11289 states have internal predecessors, (13790), 6275 states have call successors, (6275), 934 states have call predecessors, (6275), 921 states have return successors, (6410), 6074 states have call predecessors, (6410), 6272 states have call successors, (6410) [2021-12-22 15:33:35,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18190 states to 18190 states and 26475 transitions. [2021-12-22 15:33:35,302 INFO L78 Accepts]: Start accepts. Automaton has 18190 states and 26475 transitions. Word has length 139 [2021-12-22 15:33:35,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:33:35,303 INFO L470 AbstractCegarLoop]: Abstraction has 18190 states and 26475 transitions. [2021-12-22 15:33:35,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-22 15:33:35,304 INFO L276 IsEmpty]: Start isEmpty. Operand 18190 states and 26475 transitions. [2021-12-22 15:33:35,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-12-22 15:33:35,309 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:33:35,309 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:33:35,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-22 15:33:35,310 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:33:35,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:33:35,310 INFO L85 PathProgramCache]: Analyzing trace with hash 696282889, now seen corresponding path program 1 times [2021-12-22 15:33:35,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:33:35,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563570899] [2021-12-22 15:33:35,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:33:35,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:33:35,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:33:35,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:35,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:33:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:35,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:33:35,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:35,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:33:35,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:35,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:33:35,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:33:35,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-22 15:33:35,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-22 15:33:35,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-22 15:33:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 15:33:35,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:33:35,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-22 15:33:35,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat