./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.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 6b81be647295ba0700d02fa1d093d31284b02ba80deefc4d677fbd988693200b --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 10:57:08,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 10:57:08,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 10:57:09,017 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 10:57:09,018 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 10:57:09,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 10:57:09,023 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 10:57:09,027 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 10:57:09,029 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 10:57:09,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 10:57:09,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 10:57:09,033 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 10:57:09,033 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 10:57:09,034 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 10:57:09,035 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 10:57:09,036 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 10:57:09,037 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 10:57:09,037 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 10:57:09,039 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 10:57:09,040 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 10:57:09,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 10:57:09,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 10:57:09,043 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 10:57:09,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 10:57:09,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 10:57:09,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 10:57:09,051 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 10:57:09,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 10:57:09,053 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 10:57:09,053 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 10:57:09,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 10:57:09,054 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 10:57:09,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 10:57:09,056 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 10:57:09,057 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 10:57:09,058 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 10:57:09,059 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 10:57:09,059 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 10:57:09,059 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 10:57:09,060 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 10:57:09,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 10:57:09,061 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 10:57:09,094 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 10:57:09,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 10:57:09,095 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 10:57:09,095 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 10:57:09,096 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 10:57:09,096 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 10:57:09,097 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 10:57:09,097 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 10:57:09,097 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 10:57:09,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 10:57:09,098 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 10:57:09,098 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 10:57:09,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 10:57:09,099 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 10:57:09,099 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 10:57:09,099 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 10:57:09,099 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 10:57:09,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 10:57:09,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 10:57:09,100 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 10:57:09,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 10:57:09,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 10:57:09,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 10:57:09,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 10:57:09,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 10:57:09,101 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 10:57:09,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 10:57:09,101 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 10:57:09,101 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 10:57:09,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 10:57:09,102 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 10:57:09,102 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b81be647295ba0700d02fa1d093d31284b02ba80deefc4d677fbd988693200b [2021-12-18 10:57:09,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 10:57:09,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 10:57:09,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 10:57:09,328 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 10:57:09,329 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 10:57:09,329 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i [2021-12-18 10:57:09,377 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5905e599a/03ac06b0162848adac20eb01d866474f/FLAGf82a0e77b [2021-12-18 10:57:10,107 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 10:57:10,107 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i [2021-12-18 10:57:10,172 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5905e599a/03ac06b0162848adac20eb01d866474f/FLAGf82a0e77b [2021-12-18 10:57:10,659 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5905e599a/03ac06b0162848adac20eb01d866474f [2021-12-18 10:57:10,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 10:57:10,663 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 10:57:10,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 10:57:10,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 10:57:10,668 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 10:57:10,669 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:57:10" (1/1) ... [2021-12-18 10:57:10,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5670f579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:57:10, skipping insertion in model container [2021-12-18 10:57:10,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:57:10" (1/1) ... [2021-12-18 10:57:10,676 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 10:57:10,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 10:57:12,511 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315060,315073] [2021-12-18 10:57:12,514 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315229,315242] [2021-12-18 10:57:12,514 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315396,315409] [2021-12-18 10:57:12,518 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315564,315577] [2021-12-18 10:57:12,541 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 10:57:12,597 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 10:57:12,909 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315060,315073] [2021-12-18 10:57:12,909 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315229,315242] [2021-12-18 10:57:12,910 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-ethernet-8390-axnet_cs.cil.i[315396,315409] [2021-12-18 10:57:12,910 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-ethernet-8390-axnet_cs.cil.i[315564,315577] [2021-12-18 10:57:12,918 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 10:57:13,075 INFO L208 MainTranslator]: Completed translation [2021-12-18 10:57:13,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:57:13 WrapperNode [2021-12-18 10:57:13,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 10:57:13,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 10:57:13,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 10:57:13,077 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 10:57:13,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:57:13" (1/1) ... [2021-12-18 10:57:13,226 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:57:13" (1/1) ... [2021-12-18 10:57:13,352 INFO L137 Inliner]: procedures = 370, calls = 2171, calls flagged for inlining = 172, calls inlined = 152, statements flattened = 4070 [2021-12-18 10:57:13,352 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 10:57:13,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 10:57:13,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 10:57:13,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 10:57:13,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:57:13" (1/1) ... [2021-12-18 10:57:13,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:57:13" (1/1) ... [2021-12-18 10:57:13,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:57:13" (1/1) ... [2021-12-18 10:57:13,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:57:13" (1/1) ... [2021-12-18 10:57:13,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:57:13" (1/1) ... [2021-12-18 10:57:13,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:57:13" (1/1) ... [2021-12-18 10:57:13,513 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:57:13" (1/1) ... [2021-12-18 10:57:13,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 10:57:13,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 10:57:13,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 10:57:13,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 10:57:13,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:57:13" (1/1) ... [2021-12-18 10:57:13,594 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 10:57:13,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 10:57:13,629 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-18 10:57:13,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-18 10:57:13,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_page_lock_of_ei_device [2021-12-18 10:57:13,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_page_lock_of_ei_device [2021-12-18 10:57:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 10:57:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 10:57:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure axnet_detach [2021-12-18 10:57:13,679 INFO L138 BoogieDeclarations]: Found implementation of procedure axnet_detach [2021-12-18 10:57:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 10:57:13,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 10:57:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 10:57:13,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 10:57:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-18 10:57:13,679 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-18 10:57:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure AX88190_init [2021-12-18 10:57:13,680 INFO L138 BoogieDeclarations]: Found implementation of procedure AX88190_init [2021-12-18 10:57:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2021-12-18 10:57:13,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2021-12-18 10:57:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 10:57:13,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 10:57:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2021-12-18 10:57:13,681 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2021-12-18 10:57:13,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-18 10:57:13,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-18 10:57:13,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_70 [2021-12-18 10:57:13,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_70 [2021-12-18 10:57:13,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 10:57:13,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 10:57:13,682 INFO L130 BoogieDeclarations]: Found specification of procedure ei_receive [2021-12-18 10:57:13,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_receive [2021-12-18 10:57:13,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 10:57:13,682 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 10:57:13,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_axnet_cs_driver_exit_14_2 [2021-12-18 10:57:13,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_axnet_cs_driver_exit_14_2 [2021-12-18 10:57:13,683 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-18 10:57:13,683 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-18 10:57:13,683 INFO L130 BoogieDeclarations]: Found specification of procedure axnet_release [2021-12-18 10:57:13,683 INFO L138 BoogieDeclarations]: Found implementation of procedure axnet_release [2021-12-18 10:57:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_write_config_byte [2021-12-18 10:57:13,684 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_write_config_byte [2021-12-18 10:57:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure insw [2021-12-18 10:57:13,684 INFO L138 BoogieDeclarations]: Found implementation of procedure insw [2021-12-18 10:57:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure PRIV [2021-12-18 10:57:13,684 INFO L138 BoogieDeclarations]: Found implementation of procedure PRIV [2021-12-18 10:57:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-18 10:57:13,685 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-18 10:57:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 10:57:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-18 10:57:13,685 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-18 10:57:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 10:57:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-18 10:57:13,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-18 10:57:13,686 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-18 10:57:13,687 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-18 10:57:13,687 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2021-12-18 10:57:13,688 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2021-12-18 10:57:13,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 10:57:13,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 10:57:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure NS8390_trigger_send [2021-12-18 10:57:13,689 INFO L138 BoogieDeclarations]: Found implementation of procedure NS8390_trigger_send [2021-12-18 10:57:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure ei_tx_intr [2021-12-18 10:57:13,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_tx_intr [2021-12-18 10:57:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 10:57:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 10:57:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-18 10:57:13,690 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-18 10:57:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-18 10:57:13,690 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-18 10:57:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-18 10:57:13,691 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-18 10:57:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-18 10:57:13,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-18 10:57:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 10:57:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2021-12-18 10:57:13,692 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2021-12-18 10:57:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 10:57:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-18 10:57:13,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-18 10:57:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 10:57:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-18 10:57:13,693 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-18 10:57:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure ei_irq_wrapper [2021-12-18 10:57:13,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_irq_wrapper [2021-12-18 10:57:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-18 10:57:13,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-18 10:57:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-18 10:57:13,694 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-18 10:57:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-18 10:57:13,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-18 10:57:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 10:57:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 10:57:13,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 10:57:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure axnet_reset_8390 [2021-12-18 10:57:13,696 INFO L138 BoogieDeclarations]: Found implementation of procedure axnet_reset_8390 [2021-12-18 10:57:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure axnet_tx_timeout [2021-12-18 10:57:13,696 INFO L138 BoogieDeclarations]: Found implementation of procedure axnet_tx_timeout [2021-12-18 10:57:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-18 10:57:13,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-18 10:57:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 10:57:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2021-12-18 10:57:13,697 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2021-12-18 10:57:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-18 10:57:13,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-18 10:57:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure axnet_cs_driver_exit [2021-12-18 10:57:13,698 INFO L138 BoogieDeclarations]: Found implementation of procedure axnet_cs_driver_exit [2021-12-18 10:57:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 10:57:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-18 10:57:13,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-18 10:57:13,699 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-18 10:57:13,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-18 10:57:13,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 10:57:13,699 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 10:57:13,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 10:57:13,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-18 10:57:13,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-18 10:57:13,702 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-18 10:57:13,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-18 10:57:13,704 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2021-12-18 10:57:13,704 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2021-12-18 10:57:13,704 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-18 10:57:13,705 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-18 10:57:13,705 INFO L130 BoogieDeclarations]: Found specification of procedure do_set_multicast_list [2021-12-18 10:57:13,705 INFO L138 BoogieDeclarations]: Found implementation of procedure do_set_multicast_list [2021-12-18 10:57:13,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 10:57:13,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-18 10:57:13,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-18 10:57:13,709 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-12-18 10:57:13,710 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-12-18 10:57:13,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 10:57:13,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 10:57:14,239 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 10:57:14,241 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 10:57:14,519 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 10:57:18,728 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-18 10:57:18,784 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 10:57:18,805 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 10:57:18,806 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-18 10:57:18,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:57:18 BoogieIcfgContainer [2021-12-18 10:57:18,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 10:57:18,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 10:57:18,811 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 10:57:18,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 10:57:18,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 10:57:10" (1/3) ... [2021-12-18 10:57:18,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ad12d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:57:18, skipping insertion in model container [2021-12-18 10:57:18,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:57:13" (2/3) ... [2021-12-18 10:57:18,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ad12d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:57:18, skipping insertion in model container [2021-12-18 10:57:18,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:57:18" (3/3) ... [2021-12-18 10:57:18,816 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i [2021-12-18 10:57:18,820 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 10:57:18,821 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-18 10:57:18,863 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 10:57:18,871 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-18 10:57:18,871 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-18 10:57:18,931 INFO L276 IsEmpty]: Start isEmpty. Operand has 1254 states, 829 states have (on average 1.2943305186972256) internal successors, (1073), 853 states have internal predecessors, (1073), 368 states have call successors, (368), 56 states have call predecessors, (368), 55 states have return successors, (362), 354 states have call predecessors, (362), 362 states have call successors, (362) [2021-12-18 10:57:18,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-18 10:57:18,949 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:57:18,949 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:57:18,950 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:57:18,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:57:18,955 INFO L85 PathProgramCache]: Analyzing trace with hash 2140271610, now seen corresponding path program 1 times [2021-12-18 10:57:18,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:57:18,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005968427] [2021-12-18 10:57:18,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:57:18,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:57:19,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:19,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:57:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:19,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:19,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:19,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:57:19,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:19,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:19,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:19,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:57:19,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:19,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:19,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:19,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:57:19,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:19,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:19,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:19,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:57:19,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:19,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:19,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:19,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:57:19,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:19,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:19,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:19,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:57:19,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:19,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:19,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:19,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 10:57:19,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:19,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 10:57:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:19,656 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-12-18 10:57:19,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:57:19,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005968427] [2021-12-18 10:57:19,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005968427] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:57:19,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:57:19,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 10:57:19,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396699513] [2021-12-18 10:57:19,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:57:19,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 10:57:19,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:57:19,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 10:57:19,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 10:57:19,691 INFO L87 Difference]: Start difference. First operand has 1254 states, 829 states have (on average 1.2943305186972256) internal successors, (1073), 853 states have internal predecessors, (1073), 368 states have call successors, (368), 56 states have call predecessors, (368), 55 states have return successors, (362), 354 states have call predecessors, (362), 362 states have call successors, (362) Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-18 10:57:22,990 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:57:25,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:57:27,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:57:27,011 INFO L93 Difference]: Finished difference Result 3639 states and 5319 transitions. [2021-12-18 10:57:27,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 10:57:27,013 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 105 [2021-12-18 10:57:27,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:57:27,041 INFO L225 Difference]: With dead ends: 3639 [2021-12-18 10:57:27,041 INFO L226 Difference]: Without dead ends: 2394 [2021-12-18 10:57:27,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:57:27,062 INFO L933 BasicCegarLoop]: 1907 mSDtfsCounter, 1814 mSDsluCounter, 2101 mSDsCounter, 0 mSdLazyCounter, 1135 mSolverCounterSat, 988 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2141 SdHoareTripleChecker+Valid, 4008 SdHoareTripleChecker+Invalid, 2125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 988 IncrementalHoareTripleChecker+Valid, 1135 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2021-12-18 10:57:27,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2141 Valid, 4008 Invalid, 2125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [988 Valid, 1135 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2021-12-18 10:57:27,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2394 states. [2021-12-18 10:57:27,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2394 to 2382. [2021-12-18 10:57:27,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2382 states, 1590 states have (on average 1.289937106918239) internal successors, (2051), 1635 states have internal predecessors, (2051), 683 states have call successors, (683), 107 states have call predecessors, (683), 106 states have return successors, (679), 663 states have call predecessors, (679), 679 states have call successors, (679) [2021-12-18 10:57:27,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 2382 states and 3413 transitions. [2021-12-18 10:57:27,309 INFO L78 Accepts]: Start accepts. Automaton has 2382 states and 3413 transitions. Word has length 105 [2021-12-18 10:57:27,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:57:27,311 INFO L470 AbstractCegarLoop]: Abstraction has 2382 states and 3413 transitions. [2021-12-18 10:57:27,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-18 10:57:27,311 INFO L276 IsEmpty]: Start isEmpty. Operand 2382 states and 3413 transitions. [2021-12-18 10:57:27,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-18 10:57:27,316 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:57:27,317 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:57:27,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 10:57:27,317 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:57:27,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:57:27,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1508767589, now seen corresponding path program 1 times [2021-12-18 10:57:27,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:57:27,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775209554] [2021-12-18 10:57:27,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:57:27,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:57:27,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:27,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:57:27,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:27,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:27,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:27,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:57:27,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:27,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:27,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:27,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:57:27,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:27,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:27,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:27,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:57:27,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:27,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:27,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:27,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:57:27,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:27,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:27,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:57:27,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:27,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:27,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:27,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:57:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:27,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:27,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 10:57:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:27,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 10:57:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:27,695 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-12-18 10:57:27,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:57:27,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775209554] [2021-12-18 10:57:27,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775209554] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:57:27,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:57:27,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 10:57:27,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357010179] [2021-12-18 10:57:27,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:57:27,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 10:57:27,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:57:27,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 10:57:27,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 10:57:27,699 INFO L87 Difference]: Start difference. First operand 2382 states and 3413 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-18 10:57:30,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:57:32,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:57:32,563 INFO L93 Difference]: Finished difference Result 6678 states and 9562 transitions. [2021-12-18 10:57:32,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 10:57:32,563 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 114 [2021-12-18 10:57:32,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:57:32,596 INFO L225 Difference]: With dead ends: 6678 [2021-12-18 10:57:32,596 INFO L226 Difference]: Without dead ends: 4315 [2021-12-18 10:57:32,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:57:32,611 INFO L933 BasicCegarLoop]: 1923 mSDtfsCounter, 1530 mSDsluCounter, 2086 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 943 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1819 SdHoareTripleChecker+Valid, 4009 SdHoareTripleChecker+Invalid, 2057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 943 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-12-18 10:57:32,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1819 Valid, 4009 Invalid, 2057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [943 Valid, 1113 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2021-12-18 10:57:32,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4315 states. [2021-12-18 10:57:32,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4315 to 4272. [2021-12-18 10:57:32,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4272 states, 2840 states have (on average 1.2848591549295774) internal successors, (3649), 2922 states have internal predecessors, (3649), 1222 states have call successors, (1222), 206 states have call predecessors, (1222), 207 states have return successors, (1224), 1189 states have call predecessors, (1224), 1218 states have call successors, (1224) [2021-12-18 10:57:32,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4272 states to 4272 states and 6095 transitions. [2021-12-18 10:57:32,880 INFO L78 Accepts]: Start accepts. Automaton has 4272 states and 6095 transitions. Word has length 114 [2021-12-18 10:57:32,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:57:32,881 INFO L470 AbstractCegarLoop]: Abstraction has 4272 states and 6095 transitions. [2021-12-18 10:57:32,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-18 10:57:32,882 INFO L276 IsEmpty]: Start isEmpty. Operand 4272 states and 6095 transitions. [2021-12-18 10:57:32,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-18 10:57:32,889 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:57:32,889 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 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] [2021-12-18 10:57:32,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 10:57:32,890 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:57:32,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:57:32,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1603828909, now seen corresponding path program 1 times [2021-12-18 10:57:32,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:57:32,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099607805] [2021-12-18 10:57:32,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:57:32,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:57:32,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:33,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:57:33,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:33,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:33,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:33,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:57:33,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:33,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:33,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:33,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:57:33,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:33,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:33,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:33,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:57:33,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:33,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:33,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:33,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:57:33,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:33,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:33,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:33,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:57:33,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:33,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:33,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:33,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:57:33,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:33,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:33,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:33,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 10:57:33,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:33,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 10:57:33,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:33,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 10:57:33,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:33,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:33,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:33,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 10:57:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:33,208 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2021-12-18 10:57:33,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:57:33,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099607805] [2021-12-18 10:57:33,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099607805] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:57:33,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:57:33,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 10:57:33,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77552478] [2021-12-18 10:57:33,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:57:33,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 10:57:33,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:57:33,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 10:57:33,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 10:57:33,211 INFO L87 Difference]: Start difference. First operand 4272 states and 6095 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-18 10:57:35,688 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:57:39,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:57:40,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:57:40,068 INFO L93 Difference]: Finished difference Result 11752 states and 16686 transitions. [2021-12-18 10:57:40,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 10:57:40,069 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 119 [2021-12-18 10:57:40,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:57:40,121 INFO L225 Difference]: With dead ends: 11752 [2021-12-18 10:57:40,121 INFO L226 Difference]: Without dead ends: 7499 [2021-12-18 10:57:40,143 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 [2021-12-18 10:57:40,144 INFO L933 BasicCegarLoop]: 1866 mSDtfsCounter, 1530 mSDsluCounter, 2090 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 956 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1810 SdHoareTripleChecker+Valid, 3956 SdHoareTripleChecker+Invalid, 2031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 956 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-12-18 10:57:40,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1810 Valid, 3956 Invalid, 2031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [956 Valid, 1073 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2021-12-18 10:57:40,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7499 states. [2021-12-18 10:57:40,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7499 to 7442. [2021-12-18 10:57:40,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7442 states, 4946 states have (on average 1.2715325515568137) internal successors, (6289), 5084 states have internal predecessors, (6289), 2108 states have call successors, (2108), 388 states have call predecessors, (2108), 385 states have return successors, (2116), 2035 states have call predecessors, (2116), 2104 states have call successors, (2116) [2021-12-18 10:57:40,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7442 states to 7442 states and 10513 transitions. [2021-12-18 10:57:40,546 INFO L78 Accepts]: Start accepts. Automaton has 7442 states and 10513 transitions. Word has length 119 [2021-12-18 10:57:40,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:57:40,547 INFO L470 AbstractCegarLoop]: Abstraction has 7442 states and 10513 transitions. [2021-12-18 10:57:40,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-18 10:57:40,547 INFO L276 IsEmpty]: Start isEmpty. Operand 7442 states and 10513 transitions. [2021-12-18 10:57:40,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-12-18 10:57:40,551 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:57:40,551 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:57:40,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 10:57:40,551 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:57:40,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:57:40,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1087155725, now seen corresponding path program 1 times [2021-12-18 10:57:40,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:57:40,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052070255] [2021-12-18 10:57:40,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:57:40,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:57:40,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:40,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:57:40,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:40,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:40,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:40,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:57:40,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:40,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:40,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:40,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:57:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:40,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:40,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:40,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:57:40,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:40,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:40,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:40,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:57:40,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:40,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:40,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:40,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:57:40,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:40,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:40,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:40,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:57:40,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:40,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:40,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 10:57:40,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:40,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 10:57:40,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:40,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:57:40,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:40,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 10:57:40,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:40,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 10:57:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:40,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:40,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 10:57:40,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:40,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-18 10:57:40,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:40,902 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-12-18 10:57:40,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:57:40,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052070255] [2021-12-18 10:57:40,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052070255] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:57:40,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:57:40,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 10:57:40,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687409338] [2021-12-18 10:57:40,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:57:40,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 10:57:40,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:57:40,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 10:57:40,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 10:57:40,906 INFO L87 Difference]: Start difference. First operand 7442 states and 10513 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-18 10:57:43,482 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:57:44,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:57:44,941 INFO L93 Difference]: Finished difference Result 13240 states and 18670 transitions. [2021-12-18 10:57:44,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 10:57:44,942 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 143 [2021-12-18 10:57:44,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:57:44,980 INFO L225 Difference]: With dead ends: 13240 [2021-12-18 10:57:44,981 INFO L226 Difference]: Without dead ends: 5817 [2021-12-18 10:57:45,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:57:45,014 INFO L933 BasicCegarLoop]: 2289 mSDtfsCounter, 1451 mSDsluCounter, 1761 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 821 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1635 SdHoareTripleChecker+Valid, 4050 SdHoareTripleChecker+Invalid, 1652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 821 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-12-18 10:57:45,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1635 Valid, 4050 Invalid, 1652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [821 Valid, 830 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2021-12-18 10:57:45,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5817 states. [2021-12-18 10:57:45,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5817 to 5746. [2021-12-18 10:57:45,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5746 states, 3876 states have (on average 1.2587719298245614) internal successors, (4879), 4020 states have internal predecessors, (4879), 1551 states have call successors, (1551), 355 states have call predecessors, (1551), 316 states have return successors, (1583), 1405 states have call predecessors, (1583), 1547 states have call successors, (1583) [2021-12-18 10:57:45,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5746 states to 5746 states and 8013 transitions. [2021-12-18 10:57:45,282 INFO L78 Accepts]: Start accepts. Automaton has 5746 states and 8013 transitions. Word has length 143 [2021-12-18 10:57:45,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:57:45,283 INFO L470 AbstractCegarLoop]: Abstraction has 5746 states and 8013 transitions. [2021-12-18 10:57:45,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-18 10:57:45,284 INFO L276 IsEmpty]: Start isEmpty. Operand 5746 states and 8013 transitions. [2021-12-18 10:57:45,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-18 10:57:45,286 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:57:45,287 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:57:45,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 10:57:45,287 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:57:45,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:57:45,288 INFO L85 PathProgramCache]: Analyzing trace with hash 46628903, now seen corresponding path program 1 times [2021-12-18 10:57:45,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:57:45,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540543413] [2021-12-18 10:57:45,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:57:45,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:57:45,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:45,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:57:45,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:45,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:45,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:45,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:57:45,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:45,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:45,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:57:45,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:45,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:45,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:45,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:57:45,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:45,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:45,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:45,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:57:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:45,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:45,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:45,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:57:45,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:45,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:45,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:45,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:57:45,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:45,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:45,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:45,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 10:57:45,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:45,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 10:57:45,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:45,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 10:57:45,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:45,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 10:57:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:45,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-18 10:57:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:45,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:45,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:45,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 10:57:45,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:45,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 10:57:45,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:45,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-18 10:57:45,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:45,671 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2021-12-18 10:57:45,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:57:45,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540543413] [2021-12-18 10:57:45,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540543413] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:57:45,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:57:45,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 10:57:45,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258374096] [2021-12-18 10:57:45,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:57:45,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 10:57:45,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:57:45,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 10:57:45,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 10:57:45,675 INFO L87 Difference]: Start difference. First operand 5746 states and 8013 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-18 10:57:48,269 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:57:50,307 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:57:52,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:57:52,184 INFO L93 Difference]: Finished difference Result 16627 states and 23249 transitions. [2021-12-18 10:57:52,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 10:57:52,185 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 161 [2021-12-18 10:57:52,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:57:52,249 INFO L225 Difference]: With dead ends: 16627 [2021-12-18 10:57:52,249 INFO L226 Difference]: Without dead ends: 10970 [2021-12-18 10:57:52,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:57:52,274 INFO L933 BasicCegarLoop]: 2944 mSDtfsCounter, 1603 mSDsluCounter, 2728 mSDsCounter, 0 mSdLazyCounter, 1154 mSolverCounterSat, 732 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1924 SdHoareTripleChecker+Valid, 5672 SdHoareTripleChecker+Invalid, 1888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 732 IncrementalHoareTripleChecker+Valid, 1154 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2021-12-18 10:57:52,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1924 Valid, 5672 Invalid, 1888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [732 Valid, 1154 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2021-12-18 10:57:52,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10970 states. [2021-12-18 10:57:52,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10970 to 10926. [2021-12-18 10:57:52,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10926 states, 7390 states have (on average 1.2589986468200272) internal successors, (9304), 7648 states have internal predecessors, (9304), 2932 states have call successors, (2932), 674 states have call predecessors, (2932), 601 states have return successors, (3000), 2673 states have call predecessors, (3000), 2928 states have call successors, (3000) [2021-12-18 10:57:52,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10926 states to 10926 states and 15236 transitions. [2021-12-18 10:57:52,787 INFO L78 Accepts]: Start accepts. Automaton has 10926 states and 15236 transitions. Word has length 161 [2021-12-18 10:57:52,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:57:52,788 INFO L470 AbstractCegarLoop]: Abstraction has 10926 states and 15236 transitions. [2021-12-18 10:57:52,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-18 10:57:52,788 INFO L276 IsEmpty]: Start isEmpty. Operand 10926 states and 15236 transitions. [2021-12-18 10:57:52,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-18 10:57:52,790 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:57:52,790 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:57:52,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 10:57:52,791 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:57:52,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:57:52,791 INFO L85 PathProgramCache]: Analyzing trace with hash 187177513, now seen corresponding path program 1 times [2021-12-18 10:57:52,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:57:52,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736681019] [2021-12-18 10:57:52,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:57:52,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:57:52,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:53,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:57:53,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:53,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:53,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:53,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:57:53,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:53,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:53,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:57:53,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:53,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:53,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:57:53,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:53,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:53,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:57:53,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:53,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:53,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:53,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:57:53,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:53,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:53,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:53,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:57:53,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:53,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:53,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:53,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 10:57:53,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:53,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 10:57:53,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:53,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 10:57:53,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:53,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 10:57:53,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:53,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-18 10:57:53,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:53,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:53,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:53,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 10:57:53,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:53,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 10:57:53,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:53,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-18 10:57:53,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:53,220 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2021-12-18 10:57:53,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:57:53,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736681019] [2021-12-18 10:57:53,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736681019] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:57:53,221 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:57:53,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:57:53,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895852382] [2021-12-18 10:57:53,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:57:53,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:57:53,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:57:53,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:57:53,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:57:53,223 INFO L87 Difference]: Start difference. First operand 10926 states and 15236 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, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-18 10:57:55,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:57:57,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:57:57,292 INFO L93 Difference]: Finished difference Result 10972 states and 15308 transitions. [2021-12-18 10:57:57,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 10:57:57,292 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, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 161 [2021-12-18 10:57:57,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:57:57,344 INFO L225 Difference]: With dead ends: 10972 [2021-12-18 10:57:57,344 INFO L226 Difference]: Without dead ends: 10970 [2021-12-18 10:57:57,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 10:57:57,353 INFO L933 BasicCegarLoop]: 1651 mSDtfsCounter, 1573 mSDsluCounter, 3503 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 691 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1794 SdHoareTripleChecker+Valid, 5154 SdHoareTripleChecker+Invalid, 1872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 691 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-12-18 10:57:57,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1794 Valid, 5154 Invalid, 1872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [691 Valid, 1180 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2021-12-18 10:57:57,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10970 states. [2021-12-18 10:57:57,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10970 to 10930. [2021-12-18 10:57:57,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10930 states, 7393 states have (on average 1.2588935479507641) internal successors, (9307), 7651 states have internal predecessors, (9307), 2932 states have call successors, (2932), 675 states have call predecessors, (2932), 602 states have return successors, (3000), 2673 states have call predecessors, (3000), 2928 states have call successors, (3000) [2021-12-18 10:57:57,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10930 states to 10930 states and 15239 transitions. [2021-12-18 10:57:57,837 INFO L78 Accepts]: Start accepts. Automaton has 10930 states and 15239 transitions. Word has length 161 [2021-12-18 10:57:57,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:57:57,838 INFO L470 AbstractCegarLoop]: Abstraction has 10930 states and 15239 transitions. [2021-12-18 10:57:57,839 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, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-18 10:57:57,839 INFO L276 IsEmpty]: Start isEmpty. Operand 10930 states and 15239 transitions. [2021-12-18 10:57:57,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-12-18 10:57:57,843 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:57:57,843 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:57:57,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 10:57:57,844 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:57:57,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:57:57,844 INFO L85 PathProgramCache]: Analyzing trace with hash -725170141, now seen corresponding path program 1 times [2021-12-18 10:57:57,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:57:57,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337106113] [2021-12-18 10:57:57,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:57:57,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:57:57,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:58,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:57:58,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:58,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:58,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:58,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:57:58,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:58,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:58,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:58,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:57:58,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:58,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:58,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:58,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:57:58,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:58,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:58,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:58,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:57:58,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:58,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:58,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:58,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:57:58,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:58,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:58,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:57:58,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:58,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:58,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:58,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 10:57:58,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:58,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 10:57:58,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:58,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 10:57:58,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:58,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 10:57:58,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:58,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-18 10:57:58,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:58,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:57:58,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:58,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 10:57:58,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:58,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 10:57:58,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:58,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-18 10:57:58,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:58,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 10:57:58,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:57:58,227 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2021-12-18 10:57:58,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:57:58,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337106113] [2021-12-18 10:57:58,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337106113] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:57:58,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:57:58,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:57:58,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11775347] [2021-12-18 10:57:58,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:57:58,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:57:58,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:57:58,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:57:58,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:57:58,230 INFO L87 Difference]: Start difference. First operand 10930 states and 15239 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 10:58:00,894 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:58:02,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:58:02,159 INFO L93 Difference]: Finished difference Result 10976 states and 15311 transitions. [2021-12-18 10:58:02,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 10:58:02,160 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 166 [2021-12-18 10:58:02,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:58:02,210 INFO L225 Difference]: With dead ends: 10976 [2021-12-18 10:58:02,210 INFO L226 Difference]: Without dead ends: 10974 [2021-12-18 10:58:02,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 10:58:02,223 INFO L933 BasicCegarLoop]: 1654 mSDtfsCounter, 1565 mSDsluCounter, 3503 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 690 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1786 SdHoareTripleChecker+Valid, 5157 SdHoareTripleChecker+Invalid, 1871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 690 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-12-18 10:58:02,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1786 Valid, 5157 Invalid, 1871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [690 Valid, 1180 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2021-12-18 10:58:02,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10974 states. [2021-12-18 10:58:02,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10974 to 10934. [2021-12-18 10:58:02,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10934 states, 7396 states have (on average 1.258788534342888) internal successors, (9310), 7654 states have internal predecessors, (9310), 2932 states have call successors, (2932), 676 states have call predecessors, (2932), 603 states have return successors, (3000), 2673 states have call predecessors, (3000), 2928 states have call successors, (3000) [2021-12-18 10:58:02,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10934 states to 10934 states and 15242 transitions. [2021-12-18 10:58:02,722 INFO L78 Accepts]: Start accepts. Automaton has 10934 states and 15242 transitions. Word has length 166 [2021-12-18 10:58:02,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:58:02,723 INFO L470 AbstractCegarLoop]: Abstraction has 10934 states and 15242 transitions. [2021-12-18 10:58:02,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 10:58:02,723 INFO L276 IsEmpty]: Start isEmpty. Operand 10934 states and 15242 transitions. [2021-12-18 10:58:02,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-12-18 10:58:02,726 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:58:02,726 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:58:02,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 10:58:02,727 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:58:02,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:58:02,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1057283625, now seen corresponding path program 1 times [2021-12-18 10:58:02,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:58:02,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030460491] [2021-12-18 10:58:02,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:58:02,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:58:02,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:02,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:58:02,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:02,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:03,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:58:03,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:03,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:03,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:03,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:58:03,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:03,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:03,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:03,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:58:03,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:03,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:03,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:03,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:58:03,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:03,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:03,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:03,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:58:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:03,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:03,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:03,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:58:03,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:03,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:03,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:03,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 10:58:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:03,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 10:58:03,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:03,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 10:58:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:03,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 10:58:03,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:03,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-18 10:58:03,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:03,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:03,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 10:58:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:03,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 10:58:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:03,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-18 10:58:03,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:03,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 10:58:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:03,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 10:58:03,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:03,148 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2021-12-18 10:58:03,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:58:03,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030460491] [2021-12-18 10:58:03,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030460491] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:58:03,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:58:03,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:58:03,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790888097] [2021-12-18 10:58:03,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:58:03,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:58:03,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:58:03,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:58:03,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:58:03,150 INFO L87 Difference]: Start difference. First operand 10934 states and 15242 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 10:58:05,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:58:07,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:58:07,012 INFO L93 Difference]: Finished difference Result 10980 states and 15314 transitions. [2021-12-18 10:58:07,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 10:58:07,012 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 171 [2021-12-18 10:58:07,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:58:07,049 INFO L225 Difference]: With dead ends: 10980 [2021-12-18 10:58:07,050 INFO L226 Difference]: Without dead ends: 10978 [2021-12-18 10:58:07,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 10:58:07,055 INFO L933 BasicCegarLoop]: 1654 mSDtfsCounter, 1565 mSDsluCounter, 3503 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 689 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1786 SdHoareTripleChecker+Valid, 5157 SdHoareTripleChecker+Invalid, 1870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 689 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-12-18 10:58:07,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1786 Valid, 5157 Invalid, 1870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [689 Valid, 1180 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2021-12-18 10:58:07,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10978 states. [2021-12-18 10:58:07,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10978 to 10938. [2021-12-18 10:58:07,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10938 states, 7399 states have (on average 1.2586836058926882) internal successors, (9313), 7657 states have internal predecessors, (9313), 2932 states have call successors, (2932), 677 states have call predecessors, (2932), 604 states have return successors, (3000), 2673 states have call predecessors, (3000), 2928 states have call successors, (3000) [2021-12-18 10:58:07,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10938 states to 10938 states and 15245 transitions. [2021-12-18 10:58:07,558 INFO L78 Accepts]: Start accepts. Automaton has 10938 states and 15245 transitions. Word has length 171 [2021-12-18 10:58:07,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:58:07,561 INFO L470 AbstractCegarLoop]: Abstraction has 10938 states and 15245 transitions. [2021-12-18 10:58:07,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 10:58:07,562 INFO L276 IsEmpty]: Start isEmpty. Operand 10938 states and 15245 transitions. [2021-12-18 10:58:07,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-12-18 10:58:07,565 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:58:07,565 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:58:07,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 10:58:07,565 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:58:07,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:58:07,566 INFO L85 PathProgramCache]: Analyzing trace with hash 545174435, now seen corresponding path program 1 times [2021-12-18 10:58:07,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:58:07,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710969477] [2021-12-18 10:58:07,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:58:07,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:58:07,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:07,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:58:07,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:07,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:07,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:58:07,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:07,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:07,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:07,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:58:07,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:07,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:07,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:07,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:58:07,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:07,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:07,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:07,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:58:07,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:07,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:07,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:07,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:58:07,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:07,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:07,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:07,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:58:07,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:07,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:07,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:07,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 10:58:07,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:07,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 10:58:07,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:07,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 10:58:07,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:07,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 10:58:07,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:07,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-18 10:58:07,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:07,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:07,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:07,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 10:58:07,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:07,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 10:58:07,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:07,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-18 10:58:07,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:07,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 10:58:07,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:07,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 10:58:07,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:07,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 10:58:07,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:07,910 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2021-12-18 10:58:07,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:58:07,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710969477] [2021-12-18 10:58:07,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710969477] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:58:07,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:58:07,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:58:07,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575721722] [2021-12-18 10:58:07,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:58:07,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:58:07,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:58:07,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:58:07,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:58:07,913 INFO L87 Difference]: Start difference. First operand 10938 states and 15245 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 10:58:10,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:58:11,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:58:11,698 INFO L93 Difference]: Finished difference Result 10984 states and 15317 transitions. [2021-12-18 10:58:11,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 10:58:11,699 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 176 [2021-12-18 10:58:11,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:58:11,738 INFO L225 Difference]: With dead ends: 10984 [2021-12-18 10:58:11,738 INFO L226 Difference]: Without dead ends: 10982 [2021-12-18 10:58:11,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 10:58:11,746 INFO L933 BasicCegarLoop]: 1654 mSDtfsCounter, 1565 mSDsluCounter, 3503 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 688 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1786 SdHoareTripleChecker+Valid, 5157 SdHoareTripleChecker+Invalid, 1869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 688 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-12-18 10:58:11,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1786 Valid, 5157 Invalid, 1869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [688 Valid, 1180 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2021-12-18 10:58:11,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10982 states. [2021-12-18 10:58:12,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10982 to 10942. [2021-12-18 10:58:12,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10942 states, 7402 states have (on average 1.2585787624966225) internal successors, (9316), 7660 states have internal predecessors, (9316), 2932 states have call successors, (2932), 678 states have call predecessors, (2932), 605 states have return successors, (3000), 2673 states have call predecessors, (3000), 2928 states have call successors, (3000) [2021-12-18 10:58:12,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10942 states to 10942 states and 15248 transitions. [2021-12-18 10:58:12,247 INFO L78 Accepts]: Start accepts. Automaton has 10942 states and 15248 transitions. Word has length 176 [2021-12-18 10:58:12,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:58:12,247 INFO L470 AbstractCegarLoop]: Abstraction has 10942 states and 15248 transitions. [2021-12-18 10:58:12,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 10:58:12,248 INFO L276 IsEmpty]: Start isEmpty. Operand 10942 states and 15248 transitions. [2021-12-18 10:58:12,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-12-18 10:58:12,252 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:58:12,252 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:58:12,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 10:58:12,253 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:58:12,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:58:12,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1154045311, now seen corresponding path program 1 times [2021-12-18 10:58:12,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:58:12,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989760906] [2021-12-18 10:58:12,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:58:12,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:58:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:12,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:58:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:12,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:12,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:58:12,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:12,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:12,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:12,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:58:12,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:12,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:12,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:12,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:58:12,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:12,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:12,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:12,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:58:12,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:12,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:12,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:58:12,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:12,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:12,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:12,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:58:12,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:12,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:12,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 10:58:12,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:12,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 10:58:12,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:12,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 10:58:12,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:12,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 10:58:12,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:12,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-18 10:58:12,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:12,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:12,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:12,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 10:58:12,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:12,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 10:58:12,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:12,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 10:58:12,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:12,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-18 10:58:12,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:12,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:12,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:12,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 10:58:12,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:12,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 10:58:12,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:12,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 10:58:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:12,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 10:58:12,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:12,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 10:58:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:12,546 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2021-12-18 10:58:12,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:58:12,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989760906] [2021-12-18 10:58:12,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989760906] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:58:12,547 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:58:12,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 10:58:12,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703328354] [2021-12-18 10:58:12,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:58:12,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 10:58:12,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:58:12,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 10:58:12,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:58:12,548 INFO L87 Difference]: Start difference. First operand 10942 states and 15248 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-18 10:58:15,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:58:17,717 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:58:20,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:58:20,403 INFO L93 Difference]: Finished difference Result 27339 states and 38273 transitions. [2021-12-18 10:58:20,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 10:58:20,404 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 196 [2021-12-18 10:58:20,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:58:20,469 INFO L225 Difference]: With dead ends: 27339 [2021-12-18 10:58:20,469 INFO L226 Difference]: Without dead ends: 16486 [2021-12-18 10:58:20,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-18 10:58:20,507 INFO L933 BasicCegarLoop]: 3120 mSDtfsCounter, 1826 mSDsluCounter, 4101 mSDsCounter, 0 mSdLazyCounter, 2057 mSolverCounterSat, 1376 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2099 SdHoareTripleChecker+Valid, 7221 SdHoareTripleChecker+Invalid, 3435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1376 IncrementalHoareTripleChecker+Valid, 2057 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2021-12-18 10:58:20,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2099 Valid, 7221 Invalid, 3435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1376 Valid, 2057 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2021-12-18 10:58:20,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16486 states. [2021-12-18 10:58:21,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16486 to 16226. [2021-12-18 10:58:21,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16226 states, 10996 states have (on average 1.260185522008003) internal successors, (13857), 11380 states have internal predecessors, (13857), 4313 states have call successors, (4313), 997 states have call predecessors, (4313), 914 states have return successors, (4489), 3953 states have call predecessors, (4489), 4309 states have call successors, (4489) [2021-12-18 10:58:21,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16226 states to 16226 states and 22659 transitions. [2021-12-18 10:58:21,340 INFO L78 Accepts]: Start accepts. Automaton has 16226 states and 22659 transitions. Word has length 196 [2021-12-18 10:58:21,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:58:21,341 INFO L470 AbstractCegarLoop]: Abstraction has 16226 states and 22659 transitions. [2021-12-18 10:58:21,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-18 10:58:21,341 INFO L276 IsEmpty]: Start isEmpty. Operand 16226 states and 22659 transitions. [2021-12-18 10:58:21,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-12-18 10:58:21,345 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:58:21,345 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:58:21,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 10:58:21,346 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:58:21,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:58:21,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1959898583, now seen corresponding path program 1 times [2021-12-18 10:58:21,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:58:21,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388764671] [2021-12-18 10:58:21,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:58:21,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:58:21,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:21,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:58:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:21,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:21,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:21,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:58:21,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:21,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:21,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:21,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:58:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:21,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:21,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:21,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:58:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:21,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:21,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:21,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:58:21,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:21,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:21,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:21,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:58:21,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:21,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:21,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:21,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:58:21,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:21,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:21,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:21,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 10:58:21,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:21,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 10:58:21,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:21,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 10:58:21,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:21,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 10:58:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:21,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-18 10:58:21,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:21,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:21,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:21,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 10:58:21,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:21,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 10:58:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:21,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-18 10:58:21,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:21,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 10:58:21,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:21,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 10:58:21,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:21,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 10:58:21,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:21,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 10:58:21,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:21,678 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-12-18 10:58:21,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:58:21,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388764671] [2021-12-18 10:58:21,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388764671] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:58:21,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:58:21,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:58:21,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587718153] [2021-12-18 10:58:21,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:58:21,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:58:21,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:58:21,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:58:21,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:58:21,681 INFO L87 Difference]: Start difference. First operand 16226 states and 22659 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-18 10:58:24,499 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:58:25,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:58:25,963 INFO L93 Difference]: Finished difference Result 16292 states and 22761 transitions. [2021-12-18 10:58:25,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 10:58:25,963 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 181 [2021-12-18 10:58:25,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:58:26,019 INFO L225 Difference]: With dead ends: 16292 [2021-12-18 10:58:26,019 INFO L226 Difference]: Without dead ends: 16290 [2021-12-18 10:58:26,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 10:58:26,029 INFO L933 BasicCegarLoop]: 1654 mSDtfsCounter, 1565 mSDsluCounter, 3503 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 687 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1786 SdHoareTripleChecker+Valid, 5157 SdHoareTripleChecker+Invalid, 1868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 687 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-12-18 10:58:26,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1786 Valid, 5157 Invalid, 1868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [687 Valid, 1180 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2021-12-18 10:58:26,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16290 states. [2021-12-18 10:58:26,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16290 to 16230. [2021-12-18 10:58:26,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16230 states, 10999 states have (on average 1.2601145558687152) internal successors, (13860), 11383 states have internal predecessors, (13860), 4313 states have call successors, (4313), 998 states have call predecessors, (4313), 915 states have return successors, (4489), 3953 states have call predecessors, (4489), 4309 states have call successors, (4489) [2021-12-18 10:58:26,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16230 states to 16230 states and 22662 transitions. [2021-12-18 10:58:26,828 INFO L78 Accepts]: Start accepts. Automaton has 16230 states and 22662 transitions. Word has length 181 [2021-12-18 10:58:26,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:58:26,829 INFO L470 AbstractCegarLoop]: Abstraction has 16230 states and 22662 transitions. [2021-12-18 10:58:26,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-18 10:58:26,830 INFO L276 IsEmpty]: Start isEmpty. Operand 16230 states and 22662 transitions. [2021-12-18 10:58:26,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-12-18 10:58:26,834 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:58:26,834 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:58:26,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 10:58:26,834 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:58:26,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:58:26,835 INFO L85 PathProgramCache]: Analyzing trace with hash -128454877, now seen corresponding path program 1 times [2021-12-18 10:58:26,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:58:26,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017346269] [2021-12-18 10:58:26,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:58:26,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:58:26,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:26,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:58:26,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:26,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:26,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:27,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:58:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:27,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:27,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:27,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:58:27,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:27,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:27,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:27,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:58:27,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:27,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:27,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:27,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:58:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:27,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:27,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:27,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:58:27,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:27,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:27,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:27,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:58:27,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:27,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:27,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:27,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 10:58:27,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:27,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 10:58:27,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:27,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 10:58:27,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:27,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 10:58:27,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:27,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-18 10:58:27,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:27,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:27,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:27,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 10:58:27,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:27,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 10:58:27,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:27,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-18 10:58:27,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:27,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 10:58:27,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:27,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 10:58:27,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:27,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 10:58:27,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:27,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 10:58:27,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:27,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 10:58:27,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:27,130 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2021-12-18 10:58:27,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:58:27,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017346269] [2021-12-18 10:58:27,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017346269] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:58:27,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:58:27,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:58:27,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204857764] [2021-12-18 10:58:27,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:58:27,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:58:27,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:58:27,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:58:27,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:58:27,134 INFO L87 Difference]: Start difference. First operand 16230 states and 22662 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 10:58:29,706 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:58:31,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:58:31,115 INFO L93 Difference]: Finished difference Result 16296 states and 22764 transitions. [2021-12-18 10:58:31,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 10:58:31,116 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 186 [2021-12-18 10:58:31,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:58:31,179 INFO L225 Difference]: With dead ends: 16296 [2021-12-18 10:58:31,179 INFO L226 Difference]: Without dead ends: 16294 [2021-12-18 10:58:31,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 10:58:31,196 INFO L933 BasicCegarLoop]: 1654 mSDtfsCounter, 1565 mSDsluCounter, 3503 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 686 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1786 SdHoareTripleChecker+Valid, 5157 SdHoareTripleChecker+Invalid, 1867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 686 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-12-18 10:58:31,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1786 Valid, 5157 Invalid, 1867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [686 Valid, 1180 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2021-12-18 10:58:31,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16294 states. [2021-12-18 10:58:31,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16294 to 16234. [2021-12-18 10:58:31,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16234 states, 11002 states have (on average 1.2600436284311942) internal successors, (13863), 11386 states have internal predecessors, (13863), 4313 states have call successors, (4313), 999 states have call predecessors, (4313), 916 states have return successors, (4489), 3953 states have call predecessors, (4489), 4309 states have call successors, (4489) [2021-12-18 10:58:32,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16234 states to 16234 states and 22665 transitions. [2021-12-18 10:58:32,049 INFO L78 Accepts]: Start accepts. Automaton has 16234 states and 22665 transitions. Word has length 186 [2021-12-18 10:58:32,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:58:32,049 INFO L470 AbstractCegarLoop]: Abstraction has 16234 states and 22665 transitions. [2021-12-18 10:58:32,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 10:58:32,050 INFO L276 IsEmpty]: Start isEmpty. Operand 16234 states and 22665 transitions. [2021-12-18 10:58:32,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-12-18 10:58:32,054 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:58:32,054 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:58:32,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-18 10:58:32,055 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:58:32,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:58:32,055 INFO L85 PathProgramCache]: Analyzing trace with hash 998798889, now seen corresponding path program 1 times [2021-12-18 10:58:32,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:58:32,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597613179] [2021-12-18 10:58:32,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:58:32,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:58:32,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:32,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:58:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:32,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:32,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:32,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:58:32,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:32,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:32,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:58:32,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:32,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:32,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:32,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:58:32,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:32,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:32,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:32,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:58:32,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:32,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:32,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:32,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:58:32,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:32,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:32,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:32,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:58:32,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:32,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:32,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 10:58:32,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:32,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 10:58:32,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:32,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 10:58:32,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:32,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 10:58:32,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:32,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-18 10:58:32,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:32,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:32,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:32,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 10:58:32,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:32,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 10:58:32,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:32,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-18 10:58:32,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:32,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 10:58:32,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:32,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 10:58:32,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:32,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 10:58:32,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:32,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 10:58:32,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:32,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 10:58:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:32,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 10:58:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:32,369 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2021-12-18 10:58:32,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:58:32,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597613179] [2021-12-18 10:58:32,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597613179] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:58:32,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:58:32,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:58:32,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251293367] [2021-12-18 10:58:32,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:58:32,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:58:32,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:58:32,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:58:32,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:58:32,371 INFO L87 Difference]: Start difference. First operand 16234 states and 22665 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 10:58:34,986 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:58:36,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:58:36,376 INFO L93 Difference]: Finished difference Result 16300 states and 22767 transitions. [2021-12-18 10:58:36,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 10:58:36,377 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 191 [2021-12-18 10:58:36,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:58:36,424 INFO L225 Difference]: With dead ends: 16300 [2021-12-18 10:58:36,424 INFO L226 Difference]: Without dead ends: 16298 [2021-12-18 10:58:36,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 10:58:36,436 INFO L933 BasicCegarLoop]: 1654 mSDtfsCounter, 1565 mSDsluCounter, 3503 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 685 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1786 SdHoareTripleChecker+Valid, 5157 SdHoareTripleChecker+Invalid, 1866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 685 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-12-18 10:58:36,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1786 Valid, 5157 Invalid, 1866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [685 Valid, 1180 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-12-18 10:58:36,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16298 states. [2021-12-18 10:58:37,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16298 to 16238. [2021-12-18 10:58:37,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16238 states, 11005 states have (on average 1.2599727396637892) internal successors, (13866), 11389 states have internal predecessors, (13866), 4313 states have call successors, (4313), 1000 states have call predecessors, (4313), 917 states have return successors, (4489), 3953 states have call predecessors, (4489), 4309 states have call successors, (4489) [2021-12-18 10:58:37,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16238 states to 16238 states and 22668 transitions. [2021-12-18 10:58:37,150 INFO L78 Accepts]: Start accepts. Automaton has 16238 states and 22668 transitions. Word has length 191 [2021-12-18 10:58:37,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:58:37,150 INFO L470 AbstractCegarLoop]: Abstraction has 16238 states and 22668 transitions. [2021-12-18 10:58:37,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 10:58:37,151 INFO L276 IsEmpty]: Start isEmpty. Operand 16238 states and 22668 transitions. [2021-12-18 10:58:37,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-12-18 10:58:37,156 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:58:37,156 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 8, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:58:37,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-18 10:58:37,157 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:58:37,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:58:37,157 INFO L85 PathProgramCache]: Analyzing trace with hash -554796381, now seen corresponding path program 1 times [2021-12-18 10:58:37,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:58:37,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564506826] [2021-12-18 10:58:37,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:58:37,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:58:37,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:37,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:58:37,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:37,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:37,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:37,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:58:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:37,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:37,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:58:37,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:37,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:37,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:37,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:58:37,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:37,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:37,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:37,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:58:37,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:37,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:37,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:37,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:58:37,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:37,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:37,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:37,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:58:37,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:37,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:37,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:37,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 10:58:37,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:37,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 10:58:37,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:37,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 10:58:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:37,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 10:58:37,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:37,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-18 10:58:37,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:37,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:37,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:37,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 10:58:37,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:37,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 10:58:37,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:37,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-18 10:58:37,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:37,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 10:58:37,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:37,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 10:58:37,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:37,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 10:58:37,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:37,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 10:58:37,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:37,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 10:58:37,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:37,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 10:58:37,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:37,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 10:58:37,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:37,496 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2021-12-18 10:58:37,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:58:37,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564506826] [2021-12-18 10:58:37,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564506826] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:58:37,497 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:58:37,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:58:37,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182518156] [2021-12-18 10:58:37,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:58:37,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:58:37,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:58:37,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:58:37,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:58:37,499 INFO L87 Difference]: Start difference. First operand 16238 states and 22668 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 10:58:39,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:58:41,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:58:41,362 INFO L93 Difference]: Finished difference Result 16304 states and 22770 transitions. [2021-12-18 10:58:41,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 10:58:41,363 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 196 [2021-12-18 10:58:41,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:58:41,499 INFO L225 Difference]: With dead ends: 16304 [2021-12-18 10:58:41,500 INFO L226 Difference]: Without dead ends: 16302 [2021-12-18 10:58:41,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 10:58:41,504 INFO L933 BasicCegarLoop]: 1654 mSDtfsCounter, 1565 mSDsluCounter, 3503 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 684 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1786 SdHoareTripleChecker+Valid, 5157 SdHoareTripleChecker+Invalid, 1865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 684 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-12-18 10:58:41,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1786 Valid, 5157 Invalid, 1865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [684 Valid, 1180 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2021-12-18 10:58:41,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16302 states. [2021-12-18 10:58:41,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16302 to 16242. [2021-12-18 10:58:41,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16242 states, 11008 states have (on average 1.2599018895348837) internal successors, (13869), 11392 states have internal predecessors, (13869), 4313 states have call successors, (4313), 1001 states have call predecessors, (4313), 918 states have return successors, (4489), 3953 states have call predecessors, (4489), 4309 states have call successors, (4489) [2021-12-18 10:58:42,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16242 states to 16242 states and 22671 transitions. [2021-12-18 10:58:42,017 INFO L78 Accepts]: Start accepts. Automaton has 16242 states and 22671 transitions. Word has length 196 [2021-12-18 10:58:42,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:58:42,017 INFO L470 AbstractCegarLoop]: Abstraction has 16242 states and 22671 transitions. [2021-12-18 10:58:42,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 10:58:42,017 INFO L276 IsEmpty]: Start isEmpty. Operand 16242 states and 22671 transitions. [2021-12-18 10:58:42,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-12-18 10:58:42,022 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:58:42,022 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 8, 8, 7, 7, 7, 7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:58:42,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-18 10:58:42,023 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:58:42,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:58:42,023 INFO L85 PathProgramCache]: Analyzing trace with hash 251087401, now seen corresponding path program 1 times [2021-12-18 10:58:42,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:58:42,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314481154] [2021-12-18 10:58:42,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:58:42,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:58:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:42,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:58:42,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:42,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:42,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:42,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:58:42,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:42,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:42,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:42,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:58:42,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:42,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:42,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:42,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:58:42,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:42,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:42,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:42,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:58:42,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:42,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:42,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:42,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:58:42,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:42,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:42,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:42,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:58:42,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:42,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:42,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 10:58:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:42,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 10:58:42,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:42,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 10:58:42,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:42,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 10:58:42,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:42,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-18 10:58:42,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:42,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:42,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:42,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 10:58:42,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:42,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 10:58:42,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:42,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-18 10:58:42,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:42,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 10:58:42,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:42,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 10:58:42,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:42,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 10:58:42,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:42,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 10:58:42,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:42,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 10:58:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:42,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 10:58:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:42,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 10:58:42,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:42,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 10:58:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:42,393 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2021-12-18 10:58:42,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:58:42,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314481154] [2021-12-18 10:58:42,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314481154] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:58:42,394 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:58:42,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:58:42,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292676430] [2021-12-18 10:58:42,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:58:42,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:58:42,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:58:42,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:58:42,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:58:42,396 INFO L87 Difference]: Start difference. First operand 16242 states and 22671 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-18 10:58:45,002 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:58:47,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:58:47,130 INFO L93 Difference]: Finished difference Result 19210 states and 26429 transitions. [2021-12-18 10:58:47,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 10:58:47,131 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 201 [2021-12-18 10:58:47,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:58:47,188 INFO L225 Difference]: With dead ends: 19210 [2021-12-18 10:58:47,188 INFO L226 Difference]: Without dead ends: 19208 [2021-12-18 10:58:47,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 10:58:47,200 INFO L933 BasicCegarLoop]: 1798 mSDtfsCounter, 1255 mSDsluCounter, 4178 mSDsCounter, 0 mSdLazyCounter, 1861 mSolverCounterSat, 678 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1460 SdHoareTripleChecker+Valid, 5976 SdHoareTripleChecker+Invalid, 2540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 678 IncrementalHoareTripleChecker+Valid, 1861 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-12-18 10:58:47,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1460 Valid, 5976 Invalid, 2540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [678 Valid, 1861 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2021-12-18 10:58:47,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19208 states. [2021-12-18 10:58:47,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19208 to 19111. [2021-12-18 10:58:47,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19111 states, 12697 states have (on average 1.2435220918327163) internal successors, (15789), 13132 states have internal predecessors, (15789), 5162 states have call successors, (5162), 1413 states have call predecessors, (5162), 1249 states have return successors, (5350), 4697 states have call predecessors, (5350), 5158 states have call successors, (5350) [2021-12-18 10:58:47,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19111 states to 19111 states and 26301 transitions. [2021-12-18 10:58:47,934 INFO L78 Accepts]: Start accepts. Automaton has 19111 states and 26301 transitions. Word has length 201 [2021-12-18 10:58:47,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:58:47,935 INFO L470 AbstractCegarLoop]: Abstraction has 19111 states and 26301 transitions. [2021-12-18 10:58:47,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-18 10:58:47,935 INFO L276 IsEmpty]: Start isEmpty. Operand 19111 states and 26301 transitions. [2021-12-18 10:58:47,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-12-18 10:58:47,939 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:58:47,939 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 9, 9, 7, 7, 7, 7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:58:47,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-18 10:58:47,939 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:58:47,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:58:47,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1008839133, now seen corresponding path program 1 times [2021-12-18 10:58:47,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:58:47,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368792864] [2021-12-18 10:58:47,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:58:47,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:58:47,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:58:48,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:48,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:58:48,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:48,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:58:48,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:48,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:58:48,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:48,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:58:48,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:48,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:58:48,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:48,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:58:48,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:48,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 10:58:48,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 10:58:48,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 10:58:48,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 10:58:48,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-18 10:58:48,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:48,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 10:58:48,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 10:58:48,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-18 10:58:48,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 10:58:48,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 10:58:48,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 10:58:48,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 10:58:48,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 10:58:48,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 10:58:48,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 10:58:48,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 10:58:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:58:48,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:48,275 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2021-12-18 10:58:48,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:58:48,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368792864] [2021-12-18 10:58:48,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368792864] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:58:48,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:58:48,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:58:48,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527876685] [2021-12-18 10:58:48,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:58:48,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:58:48,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:58:48,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:58:48,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:58:48,280 INFO L87 Difference]: Start difference. First operand 19111 states and 26301 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-18 10:58:50,841 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:58:52,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:58:52,404 INFO L93 Difference]: Finished difference Result 19189 states and 26409 transitions. [2021-12-18 10:58:52,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 10:58:52,405 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 206 [2021-12-18 10:58:52,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:58:52,455 INFO L225 Difference]: With dead ends: 19189 [2021-12-18 10:58:52,456 INFO L226 Difference]: Without dead ends: 19187 [2021-12-18 10:58:52,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 10:58:52,464 INFO L933 BasicCegarLoop]: 1654 mSDtfsCounter, 1565 mSDsluCounter, 3503 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 682 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1786 SdHoareTripleChecker+Valid, 5157 SdHoareTripleChecker+Invalid, 1863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 682 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-12-18 10:58:52,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1786 Valid, 5157 Invalid, 1863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [682 Valid, 1180 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-12-18 10:58:52,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19187 states. [2021-12-18 10:58:53,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19187 to 19115. [2021-12-18 10:58:53,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19115 states, 12700 states have (on average 1.2434645669291338) internal successors, (15792), 13135 states have internal predecessors, (15792), 5162 states have call successors, (5162), 1414 states have call predecessors, (5162), 1250 states have return successors, (5350), 4697 states have call predecessors, (5350), 5158 states have call successors, (5350) [2021-12-18 10:58:53,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19115 states to 19115 states and 26304 transitions. [2021-12-18 10:58:53,136 INFO L78 Accepts]: Start accepts. Automaton has 19115 states and 26304 transitions. Word has length 206 [2021-12-18 10:58:53,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:58:53,137 INFO L470 AbstractCegarLoop]: Abstraction has 19115 states and 26304 transitions. [2021-12-18 10:58:53,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-18 10:58:53,137 INFO L276 IsEmpty]: Start isEmpty. Operand 19115 states and 26304 transitions. [2021-12-18 10:58:53,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-12-18 10:58:53,141 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:58:53,142 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:58:53,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-18 10:58:53,142 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:58:53,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:58:53,143 INFO L85 PathProgramCache]: Analyzing trace with hash -479516435, now seen corresponding path program 1 times [2021-12-18 10:58:53,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:58:53,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887625345] [2021-12-18 10:58:53,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:58:53,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:58:53,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:53,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:58:53,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:53,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:53,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:53,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:58:53,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:53,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:53,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:53,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:58:53,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:53,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:53,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:58:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:53,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:53,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:53,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:58:53,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:53,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:53,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:53,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:58:53,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:53,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:53,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:53,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:58:53,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:53,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:53,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:53,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 10:58:53,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:53,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 10:58:53,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:53,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 10:58:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:53,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 10:58:53,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:53,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 10:58:53,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:53,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 10:58:53,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:53,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:53,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 10:58:53,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:53,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 10:58:53,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:53,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 10:58:53,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:53,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-18 10:58:53,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:53,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-18 10:58:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:53,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 10:58:53,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:53,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:53,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:53,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 10:58:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:53,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:58:53,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:53,405 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2021-12-18 10:58:53,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:58:53,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887625345] [2021-12-18 10:58:53,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887625345] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:58:53,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:58:53,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 10:58:53,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748679466] [2021-12-18 10:58:53,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:58:53,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 10:58:53,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:58:53,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 10:58:53,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 10:58:53,407 INFO L87 Difference]: Start difference. First operand 19115 states and 26304 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-18 10:58:56,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:58:57,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:58:57,739 INFO L93 Difference]: Finished difference Result 41790 states and 57458 transitions. [2021-12-18 10:58:57,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 10:58:57,740 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 207 [2021-12-18 10:58:57,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:58:57,820 INFO L225 Difference]: With dead ends: 41790 [2021-12-18 10:58:57,820 INFO L226 Difference]: Without dead ends: 22764 [2021-12-18 10:58:57,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:58:57,877 INFO L933 BasicCegarLoop]: 2176 mSDtfsCounter, 747 mSDsluCounter, 2325 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 538 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 909 SdHoareTripleChecker+Valid, 4501 SdHoareTripleChecker+Invalid, 1532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 538 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-12-18 10:58:57,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [909 Valid, 4501 Invalid, 1532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [538 Valid, 993 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-12-18 10:58:57,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22764 states. [2021-12-18 10:58:58,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22764 to 22503. [2021-12-18 10:58:58,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22503 states, 15108 states have (on average 1.2404686258935662) internal successors, (18741), 15643 states have internal predecessors, (18741), 5905 states have call successors, (5905), 1765 states have call predecessors, (5905), 1487 states have return successors, (6135), 5226 states have call predecessors, (6135), 5901 states have call successors, (6135) [2021-12-18 10:58:59,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22503 states to 22503 states and 30781 transitions. [2021-12-18 10:58:59,010 INFO L78 Accepts]: Start accepts. Automaton has 22503 states and 30781 transitions. Word has length 207 [2021-12-18 10:58:59,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:58:59,011 INFO L470 AbstractCegarLoop]: Abstraction has 22503 states and 30781 transitions. [2021-12-18 10:58:59,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-18 10:58:59,011 INFO L276 IsEmpty]: Start isEmpty. Operand 22503 states and 30781 transitions. [2021-12-18 10:58:59,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-12-18 10:58:59,014 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:58:59,015 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 7, 7, 7, 7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:58:59,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-18 10:58:59,015 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:58:59,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:58:59,016 INFO L85 PathProgramCache]: Analyzing trace with hash 2002701865, now seen corresponding path program 1 times [2021-12-18 10:58:59,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:58:59,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556852057] [2021-12-18 10:58:59,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:58:59,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:58:59,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:58:59,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:59,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:58:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:58:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:59,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:58:59,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:59,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:58:59,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:59,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:58:59,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:58:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 10:58:59,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 10:58:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 10:58:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 10:58:59,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-18 10:58:59,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:58:59,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 10:58:59,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 10:58:59,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-18 10:58:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 10:58:59,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 10:58:59,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 10:58:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 10:58:59,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 10:58:59,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 10:58:59,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 10:58:59,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 10:58:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:58:59,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 10:58:59,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:58:59,321 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2021-12-18 10:58:59,321 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:58:59,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556852057] [2021-12-18 10:58:59,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556852057] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:58:59,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:58:59,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:58:59,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481204330] [2021-12-18 10:58:59,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:58:59,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:58:59,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:58:59,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:58:59,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:58:59,324 INFO L87 Difference]: Start difference. First operand 22503 states and 30781 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 10:59:01,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:59:03,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:59:03,520 INFO L93 Difference]: Finished difference Result 22581 states and 30895 transitions. [2021-12-18 10:59:03,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 10:59:03,520 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 211 [2021-12-18 10:59:03,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:59:03,580 INFO L225 Difference]: With dead ends: 22581 [2021-12-18 10:59:03,581 INFO L226 Difference]: Without dead ends: 22577 [2021-12-18 10:59:03,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 10:59:03,592 INFO L933 BasicCegarLoop]: 1654 mSDtfsCounter, 1565 mSDsluCounter, 3503 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 681 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1786 SdHoareTripleChecker+Valid, 5157 SdHoareTripleChecker+Invalid, 1862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 681 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-12-18 10:59:03,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1786 Valid, 5157 Invalid, 1862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [681 Valid, 1180 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2021-12-18 10:59:03,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22577 states. [2021-12-18 10:59:04,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22577 to 22505. [2021-12-18 10:59:04,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22505 states, 15110 states have (on average 1.240370615486433) internal successors, (18742), 15644 states have internal predecessors, (18742), 5905 states have call successors, (5905), 1766 states have call predecessors, (5905), 1487 states have return successors, (6135), 5226 states have call predecessors, (6135), 5901 states have call successors, (6135) [2021-12-18 10:59:04,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22505 states to 22505 states and 30782 transitions. [2021-12-18 10:59:04,417 INFO L78 Accepts]: Start accepts. Automaton has 22505 states and 30782 transitions. Word has length 211 [2021-12-18 10:59:04,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:59:04,417 INFO L470 AbstractCegarLoop]: Abstraction has 22505 states and 30782 transitions. [2021-12-18 10:59:04,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 10:59:04,417 INFO L276 IsEmpty]: Start isEmpty. Operand 22505 states and 30782 transitions. [2021-12-18 10:59:04,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-12-18 10:59:04,420 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:59:04,421 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 11, 11, 7, 7, 7, 7, 7, 7, 6, 6, 6, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:59:04,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-18 10:59:04,421 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:59:04,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:59:04,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1243933342, now seen corresponding path program 1 times [2021-12-18 10:59:04,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:59:04,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833099241] [2021-12-18 10:59:04,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:59:04,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:59:04,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:59:04,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:04,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:59:04,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:04,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:59:04,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:04,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:59:04,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:04,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:59:04,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:04,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:59:04,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:04,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:59:04,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:04,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 10:59:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 10:59:04,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 10:59:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 10:59:04,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-18 10:59:04,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:04,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 10:59:04,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 10:59:04,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-18 10:59:04,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 10:59:04,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 10:59:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-18 10:59:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 10:59:04,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:04,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 10:59:04,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 10:59:04,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 10:59:04,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 10:59:04,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-18 10:59:04,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 10:59:04,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 10:59:04,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-18 10:59:04,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-18 10:59:04,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-18 10:59:04,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-12-18 10:59:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-12-18 10:59:04,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:04,781 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 662 trivial. 0 not checked. [2021-12-18 10:59:04,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:59:04,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833099241] [2021-12-18 10:59:04,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833099241] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:59:04,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:59:04,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 10:59:04,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290470282] [2021-12-18 10:59:04,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:59:04,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 10:59:04,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:59:04,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 10:59:04,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 10:59:04,784 INFO L87 Difference]: Start difference. First operand 22505 states and 30782 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (34), 5 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-18 10:59:07,756 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:59:09,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:59:09,743 INFO L93 Difference]: Finished difference Result 22739 states and 31179 transitions. [2021-12-18 10:59:09,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 10:59:09,744 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (34), 5 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 255 [2021-12-18 10:59:09,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:59:09,816 INFO L225 Difference]: With dead ends: 22739 [2021-12-18 10:59:09,816 INFO L226 Difference]: Without dead ends: 22419 [2021-12-18 10:59:09,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2021-12-18 10:59:09,830 INFO L933 BasicCegarLoop]: 1615 mSDtfsCounter, 1850 mSDsluCounter, 4107 mSDsCounter, 0 mSdLazyCounter, 1711 mSolverCounterSat, 1227 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2050 SdHoareTripleChecker+Valid, 5722 SdHoareTripleChecker+Invalid, 2939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1227 IncrementalHoareTripleChecker+Valid, 1711 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-18 10:59:09,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2050 Valid, 5722 Invalid, 2939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1227 Valid, 1711 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2021-12-18 10:59:09,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22419 states. [2021-12-18 10:59:10,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22419 to 22185. [2021-12-18 10:59:10,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22185 states, 14905 states have (on average 1.2392485743039248) internal successors, (18471), 15403 states have internal predecessors, (18471), 5809 states have call successors, (5809), 1736 states have call predecessors, (5809), 1469 states have return successors, (6043), 5177 states have call predecessors, (6043), 5809 states have call successors, (6043) [2021-12-18 10:59:10,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22185 states to 22185 states and 30323 transitions. [2021-12-18 10:59:10,889 INFO L78 Accepts]: Start accepts. Automaton has 22185 states and 30323 transitions. Word has length 255 [2021-12-18 10:59:10,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:59:10,889 INFO L470 AbstractCegarLoop]: Abstraction has 22185 states and 30323 transitions. [2021-12-18 10:59:10,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (34), 5 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-18 10:59:10,890 INFO L276 IsEmpty]: Start isEmpty. Operand 22185 states and 30323 transitions. [2021-12-18 10:59:10,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-12-18 10:59:10,894 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:59:10,894 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 8, 8, 8, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:59:10,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-18 10:59:10,894 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:59:10,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:59:10,895 INFO L85 PathProgramCache]: Analyzing trace with hash -459742446, now seen corresponding path program 1 times [2021-12-18 10:59:10,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:59:10,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341371446] [2021-12-18 10:59:10,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:59:10,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:59:10,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:59:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:11,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:59:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:59:11,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:11,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:59:11,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:11,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:59:11,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:11,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:59:11,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:11,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:59:11,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:11,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 10:59:11,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 10:59:11,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 10:59:11,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 10:59:11,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 10:59:11,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 10:59:11,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:11,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 10:59:11,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 10:59:11,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 10:59:11,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:11,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 10:59:11,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 10:59:11,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 10:59:11,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:59:11,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-18 10:59:11,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-18 10:59:11,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-18 10:59:11,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-18 10:59:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-12-18 10:59:11,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-18 10:59:11,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:11,222 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2021-12-18 10:59:11,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:59:11,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341371446] [2021-12-18 10:59:11,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341371446] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:59:11,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:59:11,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 10:59:11,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192267442] [2021-12-18 10:59:11,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:59:11,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 10:59:11,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:59:11,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 10:59:11,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 10:59:11,225 INFO L87 Difference]: Start difference. First operand 22185 states and 30323 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-12-18 10:59:13,821 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:59:16,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:59:16,000 INFO L93 Difference]: Finished difference Result 47639 states and 65108 transitions. [2021-12-18 10:59:16,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 10:59:16,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 258 [2021-12-18 10:59:16,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:59:16,102 INFO L225 Difference]: With dead ends: 47639 [2021-12-18 10:59:16,102 INFO L226 Difference]: Without dead ends: 25471 [2021-12-18 10:59:16,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:59:16,155 INFO L933 BasicCegarLoop]: 2120 mSDtfsCounter, 718 mSDsluCounter, 2296 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 461 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 4416 SdHoareTripleChecker+Invalid, 1390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 461 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-12-18 10:59:16,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [863 Valid, 4416 Invalid, 1390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [461 Valid, 928 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2021-12-18 10:59:16,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25471 states. [2021-12-18 10:59:17,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25471 to 25259. [2021-12-18 10:59:17,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25259 states, 17101 states have (on average 1.2381147301327409) internal successors, (21173), 17687 states have internal predecessors, (21173), 6481 states have call successors, (6481), 2050 states have call predecessors, (6481), 1675 states have return successors, (6757), 5653 states have call predecessors, (6757), 6481 states have call successors, (6757) [2021-12-18 10:59:17,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25259 states to 25259 states and 34411 transitions. [2021-12-18 10:59:17,391 INFO L78 Accepts]: Start accepts. Automaton has 25259 states and 34411 transitions. Word has length 258 [2021-12-18 10:59:17,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:59:17,392 INFO L470 AbstractCegarLoop]: Abstraction has 25259 states and 34411 transitions. [2021-12-18 10:59:17,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-12-18 10:59:17,392 INFO L276 IsEmpty]: Start isEmpty. Operand 25259 states and 34411 transitions. [2021-12-18 10:59:17,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-12-18 10:59:17,397 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:59:17,397 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 8, 8, 8, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:59:17,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-18 10:59:17,397 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:59:17,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:59:17,398 INFO L85 PathProgramCache]: Analyzing trace with hash -877139052, now seen corresponding path program 1 times [2021-12-18 10:59:17,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:59:17,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621325053] [2021-12-18 10:59:17,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:59:17,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:59:17,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:59:17,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:59:17,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:59:17,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:17,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:59:17,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:17,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:59:17,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:17,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:59:17,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:17,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:59:17,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:17,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 10:59:17,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 10:59:17,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 10:59:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 10:59:17,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 10:59:17,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 10:59:17,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:17,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 10:59:17,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 10:59:17,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 10:59:17,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:17,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 10:59:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 10:59:17,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 10:59:17,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:59:17,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-18 10:59:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-18 10:59:17,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-18 10:59:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-18 10:59:17,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:17,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-12-18 10:59:17,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-18 10:59:17,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:17,695 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2021-12-18 10:59:17,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:59:17,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621325053] [2021-12-18 10:59:17,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621325053] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:59:17,695 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:59:17,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 10:59:17,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445350313] [2021-12-18 10:59:17,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:59:17,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 10:59:17,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:59:17,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 10:59:17,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 10:59:17,697 INFO L87 Difference]: Start difference. First operand 25259 states and 34411 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-12-18 10:59:20,086 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:59:22,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:59:22,456 INFO L93 Difference]: Finished difference Result 54205 states and 73791 transitions. [2021-12-18 10:59:22,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 10:59:22,456 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 258 [2021-12-18 10:59:22,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:59:22,605 INFO L225 Difference]: With dead ends: 54205 [2021-12-18 10:59:22,605 INFO L226 Difference]: Without dead ends: 29035 [2021-12-18 10:59:22,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:59:22,653 INFO L933 BasicCegarLoop]: 2195 mSDtfsCounter, 936 mSDsluCounter, 2277 mSDsCounter, 0 mSdLazyCounter, 979 mSolverCounterSat, 503 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 4472 SdHoareTripleChecker+Invalid, 1483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 979 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-12-18 10:59:22,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1122 Valid, 4472 Invalid, 1483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [503 Valid, 979 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2021-12-18 10:59:22,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29035 states. [2021-12-18 10:59:23,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29035 to 28791. [2021-12-18 10:59:23,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28791 states, 19598 states have (on average 1.2346157771201143) internal successors, (24196), 20272 states have internal predecessors, (24196), 7250 states have call successors, (7250), 2454 states have call predecessors, (7250), 1941 states have return successors, (7568), 6196 states have call predecessors, (7568), 7250 states have call successors, (7568) [2021-12-18 10:59:23,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28791 states to 28791 states and 39014 transitions. [2021-12-18 10:59:23,909 INFO L78 Accepts]: Start accepts. Automaton has 28791 states and 39014 transitions. Word has length 258 [2021-12-18 10:59:23,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:59:23,910 INFO L470 AbstractCegarLoop]: Abstraction has 28791 states and 39014 transitions. [2021-12-18 10:59:23,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-12-18 10:59:23,910 INFO L276 IsEmpty]: Start isEmpty. Operand 28791 states and 39014 transitions. [2021-12-18 10:59:23,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2021-12-18 10:59:23,922 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:59:23,922 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 10, 10, 10, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:59:23,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-18 10:59:23,923 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:59:23,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:59:23,923 INFO L85 PathProgramCache]: Analyzing trace with hash -823126135, now seen corresponding path program 1 times [2021-12-18 10:59:23,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:59:23,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366811383] [2021-12-18 10:59:23,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:59:23,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:59:24,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:59:24,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:24,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:59:24,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:59:24,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:59:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:24,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:59:24,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:59:24,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:59:24,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:24,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 10:59:24,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 10:59:24,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 10:59:24,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 10:59:24,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 10:59:24,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 10:59:24,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:24,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 10:59:24,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 10:59:24,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 10:59:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:24,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 10:59:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 10:59:24,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 10:59:24,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:59:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 10:59:24,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-18 10:59:24,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 10:59:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:24,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 10:59:24,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 10:59:24,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:24,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-12-18 10:59:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-12-18 10:59:24,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-18 10:59:24,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-12-18 10:59:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-12-18 10:59:24,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2021-12-18 10:59:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:24,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-12-18 10:59:24,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-12-18 10:59:24,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:24,453 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2021-12-18 10:59:24,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:59:24,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366811383] [2021-12-18 10:59:24,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366811383] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:59:24,453 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:59:24,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 10:59:24,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714458287] [2021-12-18 10:59:24,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:59:24,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 10:59:24,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:59:24,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 10:59:24,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 10:59:24,456 INFO L87 Difference]: Start difference. First operand 28791 states and 39014 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2021-12-18 10:59:26,884 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:59:29,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:59:29,298 INFO L93 Difference]: Finished difference Result 60851 states and 82510 transitions. [2021-12-18 10:59:29,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 10:59:29,299 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 339 [2021-12-18 10:59:29,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:59:29,413 INFO L225 Difference]: With dead ends: 60851 [2021-12-18 10:59:29,414 INFO L226 Difference]: Without dead ends: 32163 [2021-12-18 10:59:29,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:59:29,479 INFO L933 BasicCegarLoop]: 1893 mSDtfsCounter, 771 mSDsluCounter, 2167 mSDsCounter, 0 mSdLazyCounter, 927 mSolverCounterSat, 506 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 4060 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 506 IncrementalHoareTripleChecker+Valid, 927 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-12-18 10:59:29,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [918 Valid, 4060 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [506 Valid, 927 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2021-12-18 10:59:29,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32163 states. [2021-12-18 10:59:31,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32163 to 31949. [2021-12-18 10:59:31,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31949 states, 21868 states have (on average 1.2342692518748857) internal successors, (26991), 22630 states have internal predecessors, (26991), 7928 states have call successors, (7928), 2772 states have call predecessors, (7928), 2151 states have return successors, (8288), 6678 states have call predecessors, (8288), 7928 states have call successors, (8288) [2021-12-18 10:59:31,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31949 states to 31949 states and 43207 transitions. [2021-12-18 10:59:31,209 INFO L78 Accepts]: Start accepts. Automaton has 31949 states and 43207 transitions. Word has length 339 [2021-12-18 10:59:31,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:59:31,210 INFO L470 AbstractCegarLoop]: Abstraction has 31949 states and 43207 transitions. [2021-12-18 10:59:31,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2021-12-18 10:59:31,211 INFO L276 IsEmpty]: Start isEmpty. Operand 31949 states and 43207 transitions. [2021-12-18 10:59:31,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2021-12-18 10:59:31,217 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:59:31,217 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 10, 10, 10, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:59:31,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-18 10:59:31,218 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:59:31,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:59:31,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1240522741, now seen corresponding path program 1 times [2021-12-18 10:59:31,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:59:31,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545599720] [2021-12-18 10:59:31,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:59:31,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:59:31,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:59:31,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:31,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:59:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:31,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:59:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:59:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:59:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:31,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:59:31,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:31,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:59:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:31,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 10:59:31,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 10:59:31,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 10:59:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 10:59:31,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 10:59:31,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 10:59:31,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:31,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 10:59:31,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 10:59:31,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 10:59:31,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:31,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 10:59:31,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 10:59:31,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 10:59:31,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:59:31,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 10:59:31,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-18 10:59:31,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 10:59:31,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:31,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 10:59:31,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 10:59:31,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:31,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-12-18 10:59:31,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-12-18 10:59:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-18 10:59:31,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-12-18 10:59:31,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-12-18 10:59:31,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2021-12-18 10:59:31,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:31,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-12-18 10:59:31,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-12-18 10:59:31,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:31,550 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2021-12-18 10:59:31,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:59:31,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545599720] [2021-12-18 10:59:31,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545599720] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:59:31,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:59:31,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 10:59:31,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435770416] [2021-12-18 10:59:31,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:59:31,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 10:59:31,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:59:31,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 10:59:31,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 10:59:31,554 INFO L87 Difference]: Start difference. First operand 31949 states and 43207 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2021-12-18 10:59:33,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:59:36,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:59:36,684 INFO L93 Difference]: Finished difference Result 67311 states and 91082 transitions. [2021-12-18 10:59:36,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 10:59:36,685 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 339 [2021-12-18 10:59:36,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:59:36,817 INFO L225 Difference]: With dead ends: 67311 [2021-12-18 10:59:36,818 INFO L226 Difference]: Without dead ends: 35465 [2021-12-18 10:59:36,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:59:36,899 INFO L933 BasicCegarLoop]: 2156 mSDtfsCounter, 734 mSDsluCounter, 2313 mSDsCounter, 0 mSdLazyCounter, 935 mSolverCounterSat, 453 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 4469 SdHoareTripleChecker+Invalid, 1389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 935 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-12-18 10:59:36,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [881 Valid, 4469 Invalid, 1389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [453 Valid, 935 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2021-12-18 10:59:36,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35465 states. [2021-12-18 10:59:38,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35465 to 35251. [2021-12-18 10:59:38,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35251 states, 24258 states have (on average 1.2338197707972627) internal successors, (29930), 25108 states have internal predecessors, (29930), 8618 states have call successors, (8618), 3102 states have call predecessors, (8618), 2373 states have return successors, (9020), 7172 states have call predecessors, (9020), 8618 states have call successors, (9020) [2021-12-18 10:59:38,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35251 states to 35251 states and 47568 transitions. [2021-12-18 10:59:38,502 INFO L78 Accepts]: Start accepts. Automaton has 35251 states and 47568 transitions. Word has length 339 [2021-12-18 10:59:38,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:59:38,502 INFO L470 AbstractCegarLoop]: Abstraction has 35251 states and 47568 transitions. [2021-12-18 10:59:38,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2021-12-18 10:59:38,503 INFO L276 IsEmpty]: Start isEmpty. Operand 35251 states and 47568 transitions. [2021-12-18 10:59:38,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2021-12-18 10:59:38,509 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:59:38,509 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 11, 11, 11, 8, 8, 8, 8, 8, 8, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:59:38,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-18 10:59:38,510 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:59:38,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:59:38,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1004437055, now seen corresponding path program 1 times [2021-12-18 10:59:38,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:59:38,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848727394] [2021-12-18 10:59:38,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:59:38,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:59:38,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:38,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:59:38,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:38,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:38,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:38,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:59:38,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:38,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:38,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:38,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:59:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:38,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:38,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:38,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:59:38,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:38,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:38,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:38,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:59:38,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:39,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:59:39,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:39,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:59:39,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:39,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 10:59:39,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 10:59:39,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 10:59:39,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 10:59:39,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 10:59:39,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 10:59:39,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:39,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 10:59:39,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 10:59:39,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 10:59:39,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:39,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 10:59:39,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 10:59:39,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 10:59:39,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:59:39,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 10:59:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-18 10:59:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 10:59:39,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:39,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 10:59:39,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 10:59:39,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:39,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-12-18 10:59:39,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-12-18 10:59:39,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-18 10:59:39,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-12-18 10:59:39,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-12-18 10:59:39,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-12-18 10:59:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2021-12-18 10:59:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2021-12-18 10:59:39,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2021-12-18 10:59:39,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:39,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2021-12-18 10:59:39,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-12-18 10:59:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:39,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1015 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1015 trivial. 0 not checked. [2021-12-18 10:59:39,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:59:39,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848727394] [2021-12-18 10:59:39,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848727394] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:59:39,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:59:39,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:59:39,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145351663] [2021-12-18 10:59:39,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:59:39,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:59:39,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:59:39,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:59:39,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:59:39,195 INFO L87 Difference]: Start difference. First operand 35251 states and 47568 transitions. Second operand has 6 states, 6 states have (on average 21.5) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (41), 4 states have call predecessors, (41), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-12-18 10:59:41,526 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:59:44,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:59:44,335 INFO L93 Difference]: Finished difference Result 35380 states and 47755 transitions. [2021-12-18 10:59:44,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 10:59:44,336 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.5) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (41), 4 states have call predecessors, (41), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 378 [2021-12-18 10:59:44,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:59:44,441 INFO L225 Difference]: With dead ends: 35380 [2021-12-18 10:59:44,441 INFO L226 Difference]: Without dead ends: 35378 [2021-12-18 10:59:44,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 102 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-12-18 10:59:44,459 INFO L933 BasicCegarLoop]: 1758 mSDtfsCounter, 1172 mSDsluCounter, 4130 mSDsCounter, 0 mSdLazyCounter, 1792 mSolverCounterSat, 624 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1357 SdHoareTripleChecker+Valid, 5888 SdHoareTripleChecker+Invalid, 2417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 624 IncrementalHoareTripleChecker+Valid, 1792 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-12-18 10:59:44,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1357 Valid, 5888 Invalid, 2417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [624 Valid, 1792 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2021-12-18 10:59:44,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35378 states. [2021-12-18 10:59:45,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35378 to 35251. [2021-12-18 10:59:45,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35251 states, 24258 states have (on average 1.2309753483386925) internal successors, (29861), 25108 states have internal predecessors, (29861), 8618 states have call successors, (8618), 3102 states have call predecessors, (8618), 2373 states have return successors, (9020), 7172 states have call predecessors, (9020), 8618 states have call successors, (9020) [2021-12-18 10:59:46,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35251 states to 35251 states and 47499 transitions. [2021-12-18 10:59:46,079 INFO L78 Accepts]: Start accepts. Automaton has 35251 states and 47499 transitions. Word has length 378 [2021-12-18 10:59:46,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:59:46,080 INFO L470 AbstractCegarLoop]: Abstraction has 35251 states and 47499 transitions. [2021-12-18 10:59:46,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.5) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (41), 4 states have call predecessors, (41), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-12-18 10:59:46,080 INFO L276 IsEmpty]: Start isEmpty. Operand 35251 states and 47499 transitions. [2021-12-18 10:59:46,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2021-12-18 10:59:46,106 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:59:46,106 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 14, 14, 13, 13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:59:46,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-18 10:59:46,107 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:59:46,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:59:46,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1943521103, now seen corresponding path program 1 times [2021-12-18 10:59:46,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:59:46,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569528773] [2021-12-18 10:59:46,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:59:46,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:59:46,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:59:46,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:46,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:59:46,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:46,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:59:46,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:59:46,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:46,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:59:46,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:59:46,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:46,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:59:46,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:46,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 10:59:46,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 10:59:46,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 10:59:46,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 10:59:46,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 10:59:46,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 10:59:46,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:46,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 10:59:46,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 10:59:46,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 10:59:46,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:46,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 10:59:46,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 10:59:46,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 10:59:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:59:46,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 10:59:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-18 10:59:46,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 10:59:46,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 10:59:46,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-18 10:59:46,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-18 10:59:46,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:46,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-18 10:59:46,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:46,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-12-18 10:59:46,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-12-18 10:59:46,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-18 10:59:46,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2021-12-18 10:59:46,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-12-18 10:59:46,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-12-18 10:59:46,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-12-18 10:59:46,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2021-12-18 10:59:46,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2021-12-18 10:59:46,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2021-12-18 10:59:46,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-12-18 10:59:46,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-12-18 10:59:46,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2021-12-18 10:59:46,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-12-18 10:59:46,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2021-12-18 10:59:46,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:46,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-12-18 10:59:46,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2021-12-18 10:59:46,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:46,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2021-12-18 10:59:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2021-12-18 10:59:46,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2021-12-18 10:59:46,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2021-12-18 10:59:46,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:46,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:59:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2021-12-18 10:59:46,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2021-12-18 10:59:46,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2021-12-18 10:59:46,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2021-12-18 10:59:46,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 10:59:46,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 10:59:46,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2021-12-18 10:59:46,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 509 [2021-12-18 10:59:46,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2021-12-18 10:59:46,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:59:46,701 INFO L134 CoverageAnalysis]: Checked inductivity of 1448 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1434 trivial. 0 not checked. [2021-12-18 10:59:46,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:59:46,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569528773] [2021-12-18 10:59:46,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569528773] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:59:46,702 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:59:46,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:59:46,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319925225] [2021-12-18 10:59:46,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:59:46,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:59:46,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:59:46,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:59:46,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:59:46,705 INFO L87 Difference]: Start difference. First operand 35251 states and 47499 transitions. Second operand has 6 states, 5 states have (on average 41.8) internal successors, (209), 4 states have internal predecessors, (209), 3 states have call successors, (63), 4 states have call predecessors, (63), 1 states have return successors, (60), 2 states have call predecessors, (60), 3 states have call successors, (60) [2021-12-18 10:59:49,086 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:59:51,095 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:59:54,023 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:59:56,036 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:00:00,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:00:00,332 INFO L93 Difference]: Finished difference Result 104763 states and 144404 transitions. [2021-12-18 11:00:00,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 11:00:00,333 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 41.8) internal successors, (209), 4 states have internal predecessors, (209), 3 states have call successors, (63), 4 states have call predecessors, (63), 1 states have return successors, (60), 2 states have call predecessors, (60), 3 states have call successors, (60) Word has length 525 [2021-12-18 11:00:00,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:00:00,554 INFO L225 Difference]: With dead ends: 104763 [2021-12-18 11:00:00,554 INFO L226 Difference]: Without dead ends: 69615 [2021-12-18 11:00:00,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-18 11:00:00,647 INFO L933 BasicCegarLoop]: 2340 mSDtfsCounter, 2144 mSDsluCounter, 5757 mSDsCounter, 0 mSdLazyCounter, 2193 mSolverCounterSat, 1047 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2371 SdHoareTripleChecker+Valid, 8097 SdHoareTripleChecker+Invalid, 3244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1047 IncrementalHoareTripleChecker+Valid, 2193 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2021-12-18 11:00:00,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2371 Valid, 8097 Invalid, 3244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1047 Valid, 2193 Invalid, 4 Unknown, 0 Unchecked, 10.5s Time] [2021-12-18 11:00:00,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69615 states. [2021-12-18 11:00:02,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69615 to 33961. [2021-12-18 11:00:02,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33961 states, 23388 states have (on average 1.2280229177355908) internal successors, (28721), 24178 states have internal predecessors, (28721), 8246 states have call successors, (8246), 3066 states have call predecessors, (8246), 2325 states have return successors, (8564), 6842 states have call predecessors, (8564), 8246 states have call successors, (8564) [2021-12-18 11:00:02,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33961 states to 33961 states and 45531 transitions. [2021-12-18 11:00:02,813 INFO L78 Accepts]: Start accepts. Automaton has 33961 states and 45531 transitions. Word has length 525 [2021-12-18 11:00:02,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:00:02,947 INFO L470 AbstractCegarLoop]: Abstraction has 33961 states and 45531 transitions. [2021-12-18 11:00:02,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 41.8) internal successors, (209), 4 states have internal predecessors, (209), 3 states have call successors, (63), 4 states have call predecessors, (63), 1 states have return successors, (60), 2 states have call predecessors, (60), 3 states have call successors, (60) [2021-12-18 11:00:02,947 INFO L276 IsEmpty]: Start isEmpty. Operand 33961 states and 45531 transitions. [2021-12-18 11:00:02,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 870 [2021-12-18 11:00:02,963 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:00:02,964 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 27, 19, 19, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:00:02,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-18 11:00:02,964 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:00:02,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:00:02,965 INFO L85 PathProgramCache]: Analyzing trace with hash -816528391, now seen corresponding path program 1 times [2021-12-18 11:00:02,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:00:02,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770156807] [2021-12-18 11:00:02,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:00:02,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:00:03,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:00:03,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:00:03,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:00:03,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:00:03,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:00:03,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:00:03,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:00:03,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 11:00:03,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 11:00:03,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 11:00:03,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 11:00:03,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 11:00:03,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 11:00:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 11:00:03,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:00:03,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 11:00:03,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 11:00:03,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 11:00:03,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 11:00:03,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 11:00:03,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 11:00:03,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-18 11:00:03,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:00:03,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:00:03,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 11:00:03,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-12-18 11:00:03,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-12-18 11:00:03,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-18 11:00:03,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-12-18 11:00:03,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-12-18 11:00:03,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-12-18 11:00:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2021-12-18 11:00:03,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2021-12-18 11:00:03,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2021-12-18 11:00:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2021-12-18 11:00:03,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-12-18 11:00:03,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2021-12-18 11:00:03,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 11:00:03,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:03,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2021-12-18 11:00:03,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2021-12-18 11:00:03,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 11:00:03,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 11:00:03,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:03,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:03,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 11:00:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:03,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 11:00:03,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:03,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:03,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:00:03,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:03,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 11:00:03,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:03,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:03,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 11:00:03,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:03,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 11:00:03,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:03,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:00:03,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:03,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:03,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 11:00:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-12-18 11:00:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:03,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:03,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-18 11:00:03,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:03,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-12-18 11:00:03,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:03,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:03,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-12-18 11:00:03,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:03,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:03,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:03,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:04,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:04,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2021-12-18 11:00:04,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:04,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:04,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:04,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:04,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:04,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:04,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:04,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:04,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:04,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2021-12-18 11:00:04,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:04,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:04,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:04,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:04,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:04,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:04,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:04,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:04,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2021-12-18 11:00:04,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:04,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:04,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:04,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 11:00:04,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:04,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 858 [2021-12-18 11:00:04,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:04,100 INFO L134 CoverageAnalysis]: Checked inductivity of 4646 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4646 trivial. 0 not checked. [2021-12-18 11:00:04,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:00:04,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770156807] [2021-12-18 11:00:04,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770156807] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:00:04,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:00:04,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 11:00:04,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246595292] [2021-12-18 11:00:04,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:00:04,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 11:00:04,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:00:04,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 11:00:04,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-18 11:00:04,104 INFO L87 Difference]: Start difference. First operand 33961 states and 45531 transitions. Second operand has 7 states, 6 states have (on average 29.833333333333332) internal successors, (179), 3 states have internal predecessors, (179), 3 states have call successors, (71), 6 states have call predecessors, (71), 2 states have return successors, (68), 2 states have call predecessors, (68), 3 states have call successors, (68) [2021-12-18 11:00:06,634 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:00:10,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:00:10,340 INFO L93 Difference]: Finished difference Result 69024 states and 93155 transitions. [2021-12-18 11:00:10,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-18 11:00:10,341 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 29.833333333333332) internal successors, (179), 3 states have internal predecessors, (179), 3 states have call successors, (71), 6 states have call predecessors, (71), 2 states have return successors, (68), 2 states have call predecessors, (68), 3 states have call successors, (68) Word has length 869 [2021-12-18 11:00:10,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:00:10,483 INFO L225 Difference]: With dead ends: 69024 [2021-12-18 11:00:10,483 INFO L226 Difference]: Without dead ends: 35166 [2021-12-18 11:00:10,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2021-12-18 11:00:10,592 INFO L933 BasicCegarLoop]: 1552 mSDtfsCounter, 1198 mSDsluCounter, 3228 mSDsCounter, 0 mSdLazyCounter, 1811 mSolverCounterSat, 1745 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1228 SdHoareTripleChecker+Valid, 4780 SdHoareTripleChecker+Invalid, 3557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1745 IncrementalHoareTripleChecker+Valid, 1811 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-12-18 11:00:10,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1228 Valid, 4780 Invalid, 3557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1745 Valid, 1811 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2021-12-18 11:00:10,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35166 states. [2021-12-18 11:00:12,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35166 to 33985. [2021-12-18 11:00:12,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33985 states, 23412 states have (on average 1.2277891679480608) internal successors, (28745), 24202 states have internal predecessors, (28745), 8246 states have call successors, (8246), 3066 states have call predecessors, (8246), 2325 states have return successors, (8564), 6842 states have call predecessors, (8564), 8246 states have call successors, (8564) [2021-12-18 11:00:12,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33985 states to 33985 states and 45555 transitions. [2021-12-18 11:00:12,454 INFO L78 Accepts]: Start accepts. Automaton has 33985 states and 45555 transitions. Word has length 869 [2021-12-18 11:00:12,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:00:12,455 INFO L470 AbstractCegarLoop]: Abstraction has 33985 states and 45555 transitions. [2021-12-18 11:00:12,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 29.833333333333332) internal successors, (179), 3 states have internal predecessors, (179), 3 states have call successors, (71), 6 states have call predecessors, (71), 2 states have return successors, (68), 2 states have call predecessors, (68), 3 states have call successors, (68) [2021-12-18 11:00:12,456 INFO L276 IsEmpty]: Start isEmpty. Operand 33985 states and 45555 transitions. [2021-12-18 11:00:12,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2021-12-18 11:00:12,476 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:00:12,476 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 16, 16, 15, 15, 15, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:00:12,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-18 11:00:12,477 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:00:12,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:00:12,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1532745856, now seen corresponding path program 1 times [2021-12-18 11:00:12,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:00:12,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912579824] [2021-12-18 11:00:12,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:00:12,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:00:12,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:12,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:00:12,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:12,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:12,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:12,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:00:12,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:12,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:12,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:12,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:00:12,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:12,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:12,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:12,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:00:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:12,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:12,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:12,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:00:12,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:12,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:12,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:12,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:00:12,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:12,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:12,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:12,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:00:12,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:12,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:12,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 11:00:12,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:12,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 11:00:12,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:12,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 11:00:12,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:12,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 11:00:12,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:12,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 11:00:13,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 11:00:13,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:13,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 11:00:13,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:00:13,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 11:00:13,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:13,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 11:00:13,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 11:00:13,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 11:00:13,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 11:00:13,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 11:00:13,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-18 11:00:13,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:00:13,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:13,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:00:13,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-18 11:00:13,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-18 11:00:13,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:13,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-18 11:00:13,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:13,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-12-18 11:00:13,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-12-18 11:00:13,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:13,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 11:00:13,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 11:00:13,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:13,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:13,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:13,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-18 11:00:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 11:00:13,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 11:00:13,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:13,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:13,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-12-18 11:00:13,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2021-12-18 11:00:13,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2021-12-18 11:00:13,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2021-12-18 11:00:13,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2021-12-18 11:00:13,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2021-12-18 11:00:13,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2021-12-18 11:00:13,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2021-12-18 11:00:13,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2021-12-18 11:00:13,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2021-12-18 11:00:13,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2021-12-18 11:00:13,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 451 [2021-12-18 11:00:13,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2021-12-18 11:00:13,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2021-12-18 11:00:13,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:13,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2021-12-18 11:00:13,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2021-12-18 11:00:13,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:13,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2021-12-18 11:00:13,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2021-12-18 11:00:13,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 505 [2021-12-18 11:00:13,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2021-12-18 11:00:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:13,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:13,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2021-12-18 11:00:13,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 547 [2021-12-18 11:00:13,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 571 [2021-12-18 11:00:13,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 577 [2021-12-18 11:00:13,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 11:00:13,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:13,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2021-12-18 11:00:13,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 596 [2021-12-18 11:00:13,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2021-12-18 11:00:13,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:13,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1681 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1667 trivial. 0 not checked. [2021-12-18 11:00:13,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:00:13,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912579824] [2021-12-18 11:00:13,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912579824] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:00:13,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:00:13,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 11:00:13,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170035603] [2021-12-18 11:00:13,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:00:13,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 11:00:13,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:00:13,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 11:00:13,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-18 11:00:13,345 INFO L87 Difference]: Start difference. First operand 33985 states and 45555 transitions. Second operand has 7 states, 6 states have (on average 39.5) internal successors, (237), 3 states have internal predecessors, (237), 3 states have call successors, (74), 6 states have call predecessors, (74), 2 states have return successors, (71), 2 states have call predecessors, (71), 3 states have call successors, (71) [2021-12-18 11:00:15,820 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:00:19,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:00:19,943 INFO L93 Difference]: Finished difference Result 69060 states and 93092 transitions. [2021-12-18 11:00:19,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-18 11:00:19,944 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 39.5) internal successors, (237), 3 states have internal predecessors, (237), 3 states have call successors, (74), 6 states have call predecessors, (74), 2 states have return successors, (71), 2 states have call predecessors, (71), 3 states have call successors, (71) Word has length 612 [2021-12-18 11:00:19,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:00:20,085 INFO L225 Difference]: With dead ends: 69060 [2021-12-18 11:00:20,085 INFO L226 Difference]: Without dead ends: 35178 [2021-12-18 11:00:20,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2021-12-18 11:00:20,180 INFO L933 BasicCegarLoop]: 1553 mSDtfsCounter, 1198 mSDsluCounter, 3228 mSDsCounter, 0 mSdLazyCounter, 1812 mSolverCounterSat, 1768 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1228 SdHoareTripleChecker+Valid, 4781 SdHoareTripleChecker+Invalid, 3581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1768 IncrementalHoareTripleChecker+Valid, 1812 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-12-18 11:00:20,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1228 Valid, 4781 Invalid, 3581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1768 Valid, 1812 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2021-12-18 11:00:20,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35178 states. [2021-12-18 11:00:21,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35178 to 34093. [2021-12-18 11:00:21,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34093 states, 23484 states have (on average 1.2278572645205246) internal successors, (28835), 24274 states have internal predecessors, (28835), 8282 states have call successors, (8282), 3066 states have call predecessors, (8282), 2325 states have return successors, (8600), 6878 states have call predecessors, (8600), 8282 states have call successors, (8600) [2021-12-18 11:00:22,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34093 states to 34093 states and 45717 transitions. [2021-12-18 11:00:22,112 INFO L78 Accepts]: Start accepts. Automaton has 34093 states and 45717 transitions. Word has length 612 [2021-12-18 11:00:22,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:00:22,113 INFO L470 AbstractCegarLoop]: Abstraction has 34093 states and 45717 transitions. [2021-12-18 11:00:22,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 39.5) internal successors, (237), 3 states have internal predecessors, (237), 3 states have call successors, (74), 6 states have call predecessors, (74), 2 states have return successors, (71), 2 states have call predecessors, (71), 3 states have call successors, (71) [2021-12-18 11:00:22,113 INFO L276 IsEmpty]: Start isEmpty. Operand 34093 states and 45717 transitions. [2021-12-18 11:00:22,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 934 [2021-12-18 11:00:22,132 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:00:22,133 INFO L514 BasicCegarLoop]: trace histogram [29, 29, 29, 19, 19, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:00:22,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-18 11:00:22,133 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:00:22,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:00:22,134 INFO L85 PathProgramCache]: Analyzing trace with hash -898008674, now seen corresponding path program 1 times [2021-12-18 11:00:22,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:00:22,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803837234] [2021-12-18 11:00:22,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:00:22,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:00:22,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:00:22,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:00:22,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:22,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:00:22,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:22,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:00:22,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:00:22,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:22,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:00:22,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:22,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:00:22,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:22,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 11:00:22,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 11:00:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 11:00:22,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 11:00:22,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 11:00:22,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 11:00:22,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 11:00:22,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:00:22,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 11:00:22,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:22,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 11:00:22,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 11:00:22,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 11:00:22,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 11:00:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 11:00:22,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-18 11:00:22,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:00:22,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:22,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:00:22,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 11:00:22,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:22,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:22,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-12-18 11:00:22,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-12-18 11:00:22,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-18 11:00:22,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:22,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-12-18 11:00:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-12-18 11:00:23,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-12-18 11:00:23,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2021-12-18 11:00:23,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2021-12-18 11:00:23,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2021-12-18 11:00:23,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2021-12-18 11:00:23,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-12-18 11:00:23,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2021-12-18 11:00:23,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 11:00:23,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:23,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2021-12-18 11:00:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2021-12-18 11:00:23,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 11:00:23,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 11:00:23,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:23,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:23,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 11:00:23,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:23,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:23,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 11:00:23,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:23,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:23,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:00:23,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:23,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:23,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 11:00:23,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:23,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 11:00:23,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:23,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:23,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 11:00:23,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:23,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:23,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:00:23,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:23,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:23,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 11:00:23,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:23,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:23,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-12-18 11:00:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:23,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:23,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-18 11:00:23,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:23,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-12-18 11:00:23,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:23,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-12-18 11:00:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:23,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:23,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2021-12-18 11:00:23,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:23,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:23,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2021-12-18 11:00:23,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 11:00:23,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:23,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2021-12-18 11:00:23,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:23,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2021-12-18 11:00:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:00:23,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:00:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 510 [2021-12-18 11:00:23,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:00:23,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 11:00:23,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 922 [2021-12-18 11:00:23,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:00:23,601 INFO L134 CoverageAnalysis]: Checked inductivity of 5452 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5451 trivial. 0 not checked. [2021-12-18 11:00:23,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:00:23,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803837234] [2021-12-18 11:00:23,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803837234] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 11:00:23,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316930643] [2021-12-18 11:00:23,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:00:23,602 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 11:00:23,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 11:00:23,603 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 11:00:23,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process