./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-packetengines-hamachi.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 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-packetengines-hamachi.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 141cc550f279b59aa80e553b6a405c5654c50ab0a30e94ad7616006c63d0c81e --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 04:50:03,329 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 04:50:03,331 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 04:50:03,358 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 04:50:03,358 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 04:50:03,361 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 04:50:03,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 04:50:03,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 04:50:03,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 04:50:03,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 04:50:03,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 04:50:03,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 04:50:03,376 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 04:50:03,378 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 04:50:03,379 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 04:50:03,380 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 04:50:03,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 04:50:03,381 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 04:50:03,385 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 04:50:03,389 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 04:50:03,391 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 04:50:03,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 04:50:03,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 04:50:03,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 04:50:03,397 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 04:50:03,404 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 04:50:03,404 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 04:50:03,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 04:50:03,406 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 04:50:03,407 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 04:50:03,407 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 04:50:03,407 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 04:50:03,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 04:50:03,409 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 04:50:03,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 04:50:03,410 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 04:50:03,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 04:50:03,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 04:50:03,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 04:50:03,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 04:50:03,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 04:50:03,416 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 04:50:03,438 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 04:50:03,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 04:50:03,440 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 04:50:03,440 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 04:50:03,440 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 04:50:03,440 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 04:50:03,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 04:50:03,442 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 04:50:03,442 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 04:50:03,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 04:50:03,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 04:50:03,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 04:50:03,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 04:50:03,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 04:50:03,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 04:50:03,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 04:50:03,443 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 04:50:03,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 04:50:03,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 04:50:03,444 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 04:50:03,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 04:50:03,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:50:03,444 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 04:50:03,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 04:50:03,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 04:50:03,445 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 04:50:03,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 04:50:03,445 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 04:50:03,445 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 04:50:03,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 04:50:03,446 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 141cc550f279b59aa80e553b6a405c5654c50ab0a30e94ad7616006c63d0c81e [2021-12-28 04:50:03,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 04:50:03,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 04:50:03,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 04:50:03,770 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 04:50:03,771 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 04:50:03,772 INFO L432 ainManager$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-packetengines-hamachi.cil.i [2021-12-28 04:50:03,817 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5268b4e2/8e73f18457954c4fa312e074e5563928/FLAGea643bd40 [2021-12-28 04:50:04,410 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 04:50:04,411 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-packetengines-hamachi.cil.i [2021-12-28 04:50:04,451 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5268b4e2/8e73f18457954c4fa312e074e5563928/FLAGea643bd40 [2021-12-28 04:50:04,582 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5268b4e2/8e73f18457954c4fa312e074e5563928 [2021-12-28 04:50:04,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 04:50:04,596 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 04:50:04,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 04:50:04,598 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 04:50:04,602 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 04:50:04,603 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:50:04" (1/1) ... [2021-12-28 04:50:04,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ced9156 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:50:04, skipping insertion in model container [2021-12-28 04:50:04,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:50:04" (1/1) ... [2021-12-28 04:50:04,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 04:50:04,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 04:50:06,535 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-packetengines-hamachi.cil.i[322818,322831] [2021-12-28 04:50:06,538 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-packetengines-hamachi.cil.i[322987,323000] [2021-12-28 04:50:06,538 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-packetengines-hamachi.cil.i[323154,323167] [2021-12-28 04:50:06,538 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-packetengines-hamachi.cil.i[323322,323335] [2021-12-28 04:50:06,557 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:50:06,587 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 04:50:06,815 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-packetengines-hamachi.cil.i[322818,322831] [2021-12-28 04:50:06,816 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-packetengines-hamachi.cil.i[322987,323000] [2021-12-28 04:50:06,817 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-packetengines-hamachi.cil.i[323154,323167] [2021-12-28 04:50:06,817 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-packetengines-hamachi.cil.i[323322,323335] [2021-12-28 04:50:06,823 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:50:06,950 INFO L208 MainTranslator]: Completed translation [2021-12-28 04:50:06,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:50:06 WrapperNode [2021-12-28 04:50:06,951 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 04:50:06,952 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 04:50:06,952 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 04:50:06,952 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 04:50:06,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:50:06" (1/1) ... [2021-12-28 04:50:07,045 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:50:06" (1/1) ... [2021-12-28 04:50:07,197 INFO L137 Inliner]: procedures = 412, calls = 1826, calls flagged for inlining = 207, calls inlined = 191, statements flattened = 4587 [2021-12-28 04:50:07,198 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 04:50:07,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 04:50:07,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 04:50:07,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 04:50:07,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:50:06" (1/1) ... [2021-12-28 04:50:07,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:50:06" (1/1) ... [2021-12-28 04:50:07,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:50:06" (1/1) ... [2021-12-28 04:50:07,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:50:06" (1/1) ... [2021-12-28 04:50:07,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:50:06" (1/1) ... [2021-12-28 04:50:07,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:50:06" (1/1) ... [2021-12-28 04:50:07,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:50:06" (1/1) ... [2021-12-28 04:50:07,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 04:50:07,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 04:50:07,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 04:50:07,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 04:50:07,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:50:06" (1/1) ... [2021-12-28 04:50:07,455 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:50:07,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 04:50:07,478 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) [2021-12-28 04:50:07,480 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 [2021-12-28 04:50:07,501 INFO L130 BoogieDeclarations]: Found specification of procedure check_if_running [2021-12-28 04:50:07,501 INFO L138 BoogieDeclarations]: Found implementation of procedure check_if_running [2021-12-28 04:50:07,501 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-28 04:50:07,501 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-28 04:50:07,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-28 04:50:07,502 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-28 04:50:07,502 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-28 04:50:07,502 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-28 04:50:07,502 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-28 04:50:07,502 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-28 04:50:07,502 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_close [2021-12-28 04:50:07,502 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_close [2021-12-28 04:50:07,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 04:50:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 04:50:07,503 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2021-12-28 04:50:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2021-12-28 04:50:07,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-28 04:50:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-28 04:50:07,503 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-28 04:50:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-28 04:50:07,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_hamachi_private [2021-12-28 04:50:07,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_hamachi_private [2021-12-28 04:50:07,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-28 04:50:07,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-28 04:50:07,504 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-28 04:50:07,504 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-28 04:50:07,504 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-28 04:50:07,504 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-28 04:50:07,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-28 04:50:07,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-28 04:50:07,505 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-28 04:50:07,505 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-28 04:50:07,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 04:50:07,505 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-28 04:50:07,505 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-28 04:50:07,505 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-28 04:50:07,505 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-28 04:50:07,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 04:50:07,506 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-28 04:50:07,506 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-28 04:50:07,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 04:50:07,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-28 04:50:07,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-28 04:50:07,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 04:50:07,506 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-12-28 04:50:07,506 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-12-28 04:50:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-28 04:50:07,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-28 04:50:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-28 04:50:07,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-28 04:50:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-28 04:50:07,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-28 04:50:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-28 04:50:07,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-28 04:50:07,508 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-12-28 04:50:07,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-12-28 04:50:07,508 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-28 04:50:07,508 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-28 04:50:07,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-28 04:50:07,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-28 04:50:07,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 04:50:07,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-28 04:50:07,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-28 04:50:07,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-28 04:50:07,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-28 04:50:07,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-12-28 04:50:07,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-12-28 04:50:07,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 04:50:07,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-28 04:50:07,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-28 04:50:07,510 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-28 04:50:07,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-28 04:50:07,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 04:50:07,510 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 04:50:07,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 04:50:07,510 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-28 04:50:07,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-28 04:50:07,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_hamachi_private [2021-12-28 04:50:07,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_hamachi_private [2021-12-28 04:50:07,511 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-28 04:50:07,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-28 04:50:07,511 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-28 04:50:07,511 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-28 04:50:07,511 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-28 04:50:07,511 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-28 04:50:07,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-28 04:50:07,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-28 04:50:07,512 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-28 04:50:07,512 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-28 04:50:07,512 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2021-12-28 04:50:07,512 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2021-12-28 04:50:07,512 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-12-28 04:50:07,512 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-12-28 04:50:07,512 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_nway_reset [2021-12-28 04:50:07,512 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_nway_reset [2021-12-28 04:50:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-12-28 04:50:07,513 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-12-28 04:50:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 04:50:07,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 04:50:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 04:50:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 04:50:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 04:50:07,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 04:50:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-28 04:50:07,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-28 04:50:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_hamachi_exit_15_2 [2021-12-28 04:50:07,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_hamachi_exit_15_2 [2021-12-28 04:50:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-28 04:50:07,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-28 04:50:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-28 04:50:07,514 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-28 04:50:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_open [2021-12-28 04:50:07,514 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_open [2021-12-28 04:50:07,515 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-28 04:50:07,515 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-28 04:50:07,515 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-28 04:50:07,515 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-28 04:50:07,515 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-28 04:50:07,515 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-28 04:50:07,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 04:50:07,515 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-28 04:50:07,516 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-28 04:50:07,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 04:50:07,516 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-28 04:50:07,516 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-28 04:50:07,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 04:50:07,516 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-28 04:50:07,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-28 04:50:07,516 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-28 04:50:07,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-28 04:50:07,517 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-28 04:50:07,517 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-28 04:50:07,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_68 [2021-12-28 04:50:07,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_68 [2021-12-28 04:50:07,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-28 04:50:07,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-28 04:50:07,517 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-28 04:50:07,517 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-28 04:50:07,518 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-28 04:50:07,518 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-28 04:50:07,518 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-28 04:50:07,518 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-28 04:50:07,518 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_remove_one [2021-12-28 04:50:07,518 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_remove_one [2021-12-28 04:50:07,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 04:50:07,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 04:50:07,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 04:50:07,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_69 [2021-12-28 04:50:07,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_69 [2021-12-28 04:50:07,519 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_get_stats [2021-12-28 04:50:07,519 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_get_stats [2021-12-28 04:50:07,519 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_tx_timeout [2021-12-28 04:50:07,519 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_tx_timeout [2021-12-28 04:50:07,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-28 04:50:07,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-28 04:50:07,519 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2021-12-28 04:50:07,520 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2021-12-28 04:50:07,520 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-28 04:50:07,520 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-28 04:50:07,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 04:50:07,520 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_timer [2021-12-28 04:50:07,520 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_timer [2021-12-28 04:50:07,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-28 04:50:07,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-28 04:50:07,520 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2021-12-28 04:50:07,521 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2021-12-28 04:50:08,015 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 04:50:08,018 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 04:50:08,142 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 04:50:09,772 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-28 04:50:09,808 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 04:50:09,819 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 04:50:09,819 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 04:50:09,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:50:09 BoogieIcfgContainer [2021-12-28 04:50:09,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 04:50:09,823 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 04:50:09,823 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 04:50:09,825 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 04:50:09,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:50:04" (1/3) ... [2021-12-28 04:50:09,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3901c9df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:50:09, skipping insertion in model container [2021-12-28 04:50:09,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:50:06" (2/3) ... [2021-12-28 04:50:09,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3901c9df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:50:09, skipping insertion in model container [2021-12-28 04:50:09,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:50:09" (3/3) ... [2021-12-28 04:50:09,827 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2021-12-28 04:50:09,830 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 04:50:09,830 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-28 04:50:09,863 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 04:50:09,867 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 [2021-12-28 04:50:09,868 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-28 04:50:09,896 INFO L276 IsEmpty]: Start isEmpty. Operand has 1568 states, 1094 states have (on average 1.287020109689214) internal successors, (1408), 1121 states have internal predecessors, (1408), 397 states have call successors, (397), 75 states have call predecessors, (397), 74 states have return successors, (390), 377 states have call predecessors, (390), 390 states have call successors, (390) [2021-12-28 04:50:09,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-28 04:50:09,907 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:50:09,908 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:50:09,908 INFO L402 AbstractCegarLoop]: === Iteration 1 === 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)] === [2021-12-28 04:50:09,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:50:09,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1114654547, now seen corresponding path program 1 times [2021-12-28 04:50:09,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:50:09,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206260688] [2021-12-28 04:50:09,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:50:09,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:50:10,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:10,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:50:10,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:10,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:10,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:10,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:50:10,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:10,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:10,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:10,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:50:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:10,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:10,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:10,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 04:50:10,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:10,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:10,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:10,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:50:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:10,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:10,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:10,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 04:50:10,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:10,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:10,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:10,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 04:50:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:10,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:10,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:10,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 04:50:10,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:10,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:10,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:10,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 04:50:10,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:10,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:10,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 04:50:10,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:10,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-28 04:50:10,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:10,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-28 04:50:10,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:10,656 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-12-28 04:50:10,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:50:10,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206260688] [2021-12-28 04:50:10,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206260688] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:50:10,659 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:50:10,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 04:50:10,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898263880] [2021-12-28 04:50:10,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:50:10,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 04:50:10,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:50:10,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 04:50:10,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 04:50:10,697 INFO L87 Difference]: Start difference. First operand has 1568 states, 1094 states have (on average 1.287020109689214) internal successors, (1408), 1121 states have internal predecessors, (1408), 397 states have call successors, (397), 75 states have call predecessors, (397), 74 states have return successors, (390), 377 states have call predecessors, (390), 390 states have call successors, (390) Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-28 04:50:13,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:50:13,241 INFO L93 Difference]: Finished difference Result 4440 states and 6347 transitions. [2021-12-28 04:50:13,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:50:13,243 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 129 [2021-12-28 04:50:13,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:50:13,283 INFO L225 Difference]: With dead ends: 4440 [2021-12-28 04:50:13,283 INFO L226 Difference]: Without dead ends: 2879 [2021-12-28 04:50:13,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:50:13,301 INFO L933 BasicCegarLoop]: 2351 mSDtfsCounter, 2379 mSDsluCounter, 2170 mSDsCounter, 0 mSdLazyCounter, 1647 mSolverCounterSat, 1113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2689 SdHoareTripleChecker+Valid, 4521 SdHoareTripleChecker+Invalid, 2760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1113 IncrementalHoareTripleChecker+Valid, 1647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-28 04:50:13,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2689 Valid, 4521 Invalid, 2760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1113 Valid, 1647 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-28 04:50:13,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2879 states. [2021-12-28 04:50:13,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2879 to 2819. [2021-12-28 04:50:13,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2819 states, 1966 states have (on average 1.2746693794506612) internal successors, (2506), 2024 states have internal predecessors, (2506), 703 states have call successors, (703), 142 states have call predecessors, (703), 147 states have return successors, (725), 670 states have call predecessors, (725), 699 states have call successors, (725) [2021-12-28 04:50:13,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 3934 transitions. [2021-12-28 04:50:13,574 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 3934 transitions. Word has length 129 [2021-12-28 04:50:13,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:50:13,574 INFO L470 AbstractCegarLoop]: Abstraction has 2819 states and 3934 transitions. [2021-12-28 04:50:13,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-28 04:50:13,575 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 3934 transitions. [2021-12-28 04:50:13,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-28 04:50:13,579 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:50:13,579 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:50:13,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 04:50:13,580 INFO L402 AbstractCegarLoop]: === Iteration 2 === 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)] === [2021-12-28 04:50:13,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:50:13,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1677512621, now seen corresponding path program 1 times [2021-12-28 04:50:13,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:50:13,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496499378] [2021-12-28 04:50:13,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:50:13,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:50:13,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:50:13,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:13,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:50:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:13,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:50:13,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:13,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 04:50:13,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:50:13,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:13,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 04:50:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:13,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 04:50:13,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:13,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 04:50:13,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:13,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 04:50:13,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:13,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 04:50:13,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-28 04:50:13,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,857 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-12-28 04:50:13,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:50:13,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496499378] [2021-12-28 04:50:13,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496499378] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:50:13,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:50:13,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 04:50:13,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493867508] [2021-12-28 04:50:13,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:50:13,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 04:50:13,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:50:13,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 04:50:13,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 04:50:13,861 INFO L87 Difference]: Start difference. First operand 2819 states and 3934 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 04:50:16,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:50:16,318 INFO L93 Difference]: Finished difference Result 8334 states and 11656 transitions. [2021-12-28 04:50:16,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:50:16,319 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 129 [2021-12-28 04:50:16,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:50:16,349 INFO L225 Difference]: With dead ends: 8334 [2021-12-28 04:50:16,350 INFO L226 Difference]: Without dead ends: 5538 [2021-12-28 04:50:16,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:50:16,357 INFO L933 BasicCegarLoop]: 2279 mSDtfsCounter, 2618 mSDsluCounter, 2088 mSDsCounter, 0 mSdLazyCounter, 1731 mSolverCounterSat, 1120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2970 SdHoareTripleChecker+Valid, 4367 SdHoareTripleChecker+Invalid, 2851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1120 IncrementalHoareTripleChecker+Valid, 1731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-28 04:50:16,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2970 Valid, 4367 Invalid, 2851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1120 Valid, 1731 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-28 04:50:16,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5538 states. [2021-12-28 04:50:16,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5538 to 5468. [2021-12-28 04:50:16,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5468 states, 3830 states have (on average 1.2754569190600522) internal successors, (4885), 3938 states have internal predecessors, (4885), 1344 states have call successors, (1344), 280 states have call predecessors, (1344), 291 states have return successors, (1392), 1285 states have call predecessors, (1392), 1340 states have call successors, (1392) [2021-12-28 04:50:16,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5468 states to 5468 states and 7621 transitions. [2021-12-28 04:50:16,512 INFO L78 Accepts]: Start accepts. Automaton has 5468 states and 7621 transitions. Word has length 129 [2021-12-28 04:50:16,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:50:16,513 INFO L470 AbstractCegarLoop]: Abstraction has 5468 states and 7621 transitions. [2021-12-28 04:50:16,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 04:50:16,514 INFO L276 IsEmpty]: Start isEmpty. Operand 5468 states and 7621 transitions. [2021-12-28 04:50:16,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-28 04:50:16,520 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:50:16,520 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:50:16,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 04:50:16,520 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)] === [2021-12-28 04:50:16,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:50:16,521 INFO L85 PathProgramCache]: Analyzing trace with hash 527388282, now seen corresponding path program 1 times [2021-12-28 04:50:16,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:50:16,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579543483] [2021-12-28 04:50:16,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:50:16,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:50:16,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:16,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:50:16,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:16,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:16,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:50:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:16,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:16,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:16,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:50:16,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:16,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:16,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:16,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 04:50:16,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:16,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:16,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:16,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:50:16,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:16,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:16,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:16,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 04:50:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:16,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:16,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:16,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 04:50:16,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:16,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:16,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:16,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 04:50:16,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:16,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:16,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:16,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 04:50:16,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:16,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:16,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:16,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 04:50:16,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:16,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-28 04:50:16,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:16,764 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-12-28 04:50:16,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:50:16,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579543483] [2021-12-28 04:50:16,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579543483] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:50:16,765 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:50:16,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 04:50:16,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823774094] [2021-12-28 04:50:16,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:50:16,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 04:50:16,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:50:16,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 04:50:16,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 04:50:16,767 INFO L87 Difference]: Start difference. First operand 5468 states and 7621 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, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 04:50:19,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:50:19,243 INFO L93 Difference]: Finished difference Result 15548 states and 21726 transitions. [2021-12-28 04:50:19,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:50:19,244 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, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 134 [2021-12-28 04:50:19,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:50:19,295 INFO L225 Difference]: With dead ends: 15548 [2021-12-28 04:50:19,295 INFO L226 Difference]: Without dead ends: 10103 [2021-12-28 04:50:19,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:50:19,316 INFO L933 BasicCegarLoop]: 2261 mSDtfsCounter, 2375 mSDsluCounter, 2086 mSDsCounter, 0 mSdLazyCounter, 1728 mSolverCounterSat, 1138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2696 SdHoareTripleChecker+Valid, 4347 SdHoareTripleChecker+Invalid, 2866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1138 IncrementalHoareTripleChecker+Valid, 1728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-28 04:50:19,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2696 Valid, 4347 Invalid, 2866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1138 Valid, 1728 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-28 04:50:19,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10103 states. [2021-12-28 04:50:19,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10103 to 9886. [2021-12-28 04:50:19,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9886 states, 6886 states have (on average 1.2769387162358408) internal successors, (8793), 7088 states have internal predecessors, (8793), 2452 states have call successors, (2452), 532 states have call predecessors, (2452), 545 states have return successors, (2530), 2329 states have call predecessors, (2530), 2448 states have call successors, (2530) [2021-12-28 04:50:19,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9886 states to 9886 states and 13775 transitions. [2021-12-28 04:50:19,706 INFO L78 Accepts]: Start accepts. Automaton has 9886 states and 13775 transitions. Word has length 134 [2021-12-28 04:50:19,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:50:19,707 INFO L470 AbstractCegarLoop]: Abstraction has 9886 states and 13775 transitions. [2021-12-28 04:50:19,709 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, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 04:50:19,709 INFO L276 IsEmpty]: Start isEmpty. Operand 9886 states and 13775 transitions. [2021-12-28 04:50:19,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-12-28 04:50:19,713 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:50:19,714 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 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] [2021-12-28 04:50:19,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 04:50:19,714 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-28 04:50:19,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:50:19,715 INFO L85 PathProgramCache]: Analyzing trace with hash -730204044, now seen corresponding path program 1 times [2021-12-28 04:50:19,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:50:19,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177470528] [2021-12-28 04:50:19,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:50:19,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:50:19,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:19,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:50:19,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:19,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:19,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:19,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:50:19,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:19,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:19,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:19,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:50:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:19,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:19,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:19,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 04:50:19,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:19,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:19,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:19,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:50:19,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:19,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:19,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:19,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 04:50:19,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:19,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:19,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:19,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 04:50:19,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:19,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:19,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:19,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 04:50:19,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:19,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:19,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:19,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 04:50:19,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:19,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:19,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:19,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 04:50:19,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:19,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:50:19,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:19,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:50:19,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:19,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-28 04:50:19,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:19,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 04:50:19,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:19,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:19,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:19,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-28 04:50:19,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:19,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-28 04:50:19,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:19,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-28 04:50:19,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:19,958 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2021-12-28 04:50:19,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:50:19,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177470528] [2021-12-28 04:50:19,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177470528] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:50:19,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:50:19,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 04:50:19,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917358336] [2021-12-28 04:50:19,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:50:19,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 04:50:19,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:50:19,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 04:50:19,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 04:50:19,961 INFO L87 Difference]: Start difference. First operand 9886 states and 13775 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-28 04:50:22,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:50:22,397 INFO L93 Difference]: Finished difference Result 20076 states and 28034 transitions. [2021-12-28 04:50:22,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:50:22,398 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 187 [2021-12-28 04:50:22,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:50:22,463 INFO L225 Difference]: With dead ends: 20076 [2021-12-28 04:50:22,464 INFO L226 Difference]: Without dead ends: 14962 [2021-12-28 04:50:22,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:50:22,490 INFO L933 BasicCegarLoop]: 3917 mSDtfsCounter, 2104 mSDsluCounter, 2921 mSDsCounter, 0 mSdLazyCounter, 1753 mSolverCounterSat, 769 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2453 SdHoareTripleChecker+Valid, 6838 SdHoareTripleChecker+Invalid, 2522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 769 IncrementalHoareTripleChecker+Valid, 1753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-28 04:50:22,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2453 Valid, 6838 Invalid, 2522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [769 Valid, 1753 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-28 04:50:22,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14962 states. [2021-12-28 04:50:22,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14962 to 14679. [2021-12-28 04:50:22,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14679 states, 10233 states have (on average 1.2771425779341348) internal successors, (13069), 10529 states have internal predecessors, (13069), 3628 states have call successors, (3628), 795 states have call predecessors, (3628), 815 states have return successors, (3747), 3450 states have call predecessors, (3747), 3624 states have call successors, (3747) [2021-12-28 04:50:22,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14679 states to 14679 states and 20444 transitions. [2021-12-28 04:50:22,949 INFO L78 Accepts]: Start accepts. Automaton has 14679 states and 20444 transitions. Word has length 187 [2021-12-28 04:50:22,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:50:22,950 INFO L470 AbstractCegarLoop]: Abstraction has 14679 states and 20444 transitions. [2021-12-28 04:50:22,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-28 04:50:22,951 INFO L276 IsEmpty]: Start isEmpty. Operand 14679 states and 20444 transitions. [2021-12-28 04:50:22,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-12-28 04:50:22,956 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:50:22,956 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 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] [2021-12-28 04:50:22,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 04:50:22,957 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)] === [2021-12-28 04:50:22,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:50:22,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1193023990, now seen corresponding path program 1 times [2021-12-28 04:50:22,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:50:22,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008083326] [2021-12-28 04:50:22,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:50:22,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:50:23,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:23,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:50:23,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:23,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:23,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:23,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:50:23,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:23,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:23,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:23,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:50:23,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:23,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:23,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:23,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 04:50:23,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:23,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:23,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:23,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:50:23,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:23,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:23,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:23,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 04:50:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:23,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:23,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:23,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 04:50:23,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:23,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:23,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:23,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 04:50:23,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:23,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:23,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:23,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 04:50:23,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:23,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:23,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:23,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 04:50:23,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:23,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:50:23,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:23,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:50:23,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:23,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-28 04:50:23,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:23,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 04:50:23,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:23,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:23,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:23,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-28 04:50:23,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:23,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-28 04:50:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:23,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-28 04:50:23,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:23,270 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-12-28 04:50:23,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:50:23,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008083326] [2021-12-28 04:50:23,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008083326] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:50:23,271 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:50:23,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:50:23,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393517215] [2021-12-28 04:50:23,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:50:23,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:50:23,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:50:23,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:50:23,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:50:23,272 INFO L87 Difference]: Start difference. First operand 14679 states and 20444 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (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) [2021-12-28 04:50:25,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:50:25,397 INFO L93 Difference]: Finished difference Result 14964 states and 20899 transitions. [2021-12-28 04:50:25,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:50:25,398 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (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 187 [2021-12-28 04:50:25,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:50:25,449 INFO L225 Difference]: With dead ends: 14964 [2021-12-28 04:50:25,449 INFO L226 Difference]: Without dead ends: 14962 [2021-12-28 04:50:25,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-28 04:50:25,458 INFO L933 BasicCegarLoop]: 2033 mSDtfsCounter, 2182 mSDsluCounter, 3391 mSDsCounter, 0 mSdLazyCounter, 2263 mSolverCounterSat, 793 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2412 SdHoareTripleChecker+Valid, 5424 SdHoareTripleChecker+Invalid, 3056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 793 IncrementalHoareTripleChecker+Valid, 2263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-28 04:50:25,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2412 Valid, 5424 Invalid, 3056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [793 Valid, 2263 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-28 04:50:25,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14962 states. [2021-12-28 04:50:25,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14962 to 14683. [2021-12-28 04:50:25,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14683 states, 10236 states have (on average 1.2770613520906604) internal successors, (13072), 10532 states have internal predecessors, (13072), 3628 states have call successors, (3628), 796 states have call predecessors, (3628), 816 states have return successors, (3747), 3450 states have call predecessors, (3747), 3624 states have call successors, (3747) [2021-12-28 04:50:25,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14683 states to 14683 states and 20447 transitions. [2021-12-28 04:50:25,971 INFO L78 Accepts]: Start accepts. Automaton has 14683 states and 20447 transitions. Word has length 187 [2021-12-28 04:50:25,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:50:25,972 INFO L470 AbstractCegarLoop]: Abstraction has 14683 states and 20447 transitions. [2021-12-28 04:50:25,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (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) [2021-12-28 04:50:25,974 INFO L276 IsEmpty]: Start isEmpty. Operand 14683 states and 20447 transitions. [2021-12-28 04:50:25,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-12-28 04:50:25,982 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:50:25,983 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 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] [2021-12-28 04:50:25,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 04:50:25,983 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)] === [2021-12-28 04:50:25,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:50:25,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1101116577, now seen corresponding path program 1 times [2021-12-28 04:50:25,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:50:25,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800186151] [2021-12-28 04:50:25,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:50:25,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:50:26,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:26,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:50:26,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:26,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:26,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:26,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:50:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:26,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:26,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:26,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:50:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:26,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:26,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:26,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 04:50:26,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:26,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:26,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:26,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:50:26,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:26,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:26,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 04:50:26,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:26,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:26,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:26,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 04:50:26,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:26,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:26,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:26,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 04:50:26,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:26,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:26,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:26,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 04:50:26,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:26,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:26,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:26,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 04:50:26,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:26,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:50:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:26,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:50:26,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:26,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-28 04:50:26,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:26,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 04:50:26,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:26,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:26,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:26,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-28 04:50:26,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:26,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-28 04:50:26,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:26,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-28 04:50:26,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:26,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-28 04:50:26,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:26,267 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-12-28 04:50:26,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:50:26,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800186151] [2021-12-28 04:50:26,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800186151] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:50:26,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:50:26,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:50:26,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558564042] [2021-12-28 04:50:26,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:50:26,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:50:26,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:50:26,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:50:26,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:50:26,269 INFO L87 Difference]: Start difference. First operand 14683 states and 20447 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (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) [2021-12-28 04:50:28,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:50:28,262 INFO L93 Difference]: Finished difference Result 14968 states and 20902 transitions. [2021-12-28 04:50:28,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:50:28,262 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (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 192 [2021-12-28 04:50:28,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:50:28,310 INFO L225 Difference]: With dead ends: 14968 [2021-12-28 04:50:28,310 INFO L226 Difference]: Without dead ends: 14966 [2021-12-28 04:50:28,319 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 [2021-12-28 04:50:28,320 INFO L933 BasicCegarLoop]: 2034 mSDtfsCounter, 2174 mSDsluCounter, 3385 mSDsCounter, 0 mSdLazyCounter, 2263 mSolverCounterSat, 792 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2406 SdHoareTripleChecker+Valid, 5419 SdHoareTripleChecker+Invalid, 3055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 792 IncrementalHoareTripleChecker+Valid, 2263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-28 04:50:28,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2406 Valid, 5419 Invalid, 3055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [792 Valid, 2263 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-28 04:50:28,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14966 states. [2021-12-28 04:50:28,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14966 to 14687. [2021-12-28 04:50:28,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14687 states, 10239 states have (on average 1.276980173845102) internal successors, (13075), 10535 states have internal predecessors, (13075), 3628 states have call successors, (3628), 797 states have call predecessors, (3628), 817 states have return successors, (3747), 3450 states have call predecessors, (3747), 3624 states have call successors, (3747) [2021-12-28 04:50:28,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14687 states to 14687 states and 20450 transitions. [2021-12-28 04:50:28,830 INFO L78 Accepts]: Start accepts. Automaton has 14687 states and 20450 transitions. Word has length 192 [2021-12-28 04:50:28,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:50:28,830 INFO L470 AbstractCegarLoop]: Abstraction has 14687 states and 20450 transitions. [2021-12-28 04:50:28,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (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) [2021-12-28 04:50:28,831 INFO L276 IsEmpty]: Start isEmpty. Operand 14687 states and 20450 transitions. [2021-12-28 04:50:28,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-12-28 04:50:28,837 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:50:28,837 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 3, 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] [2021-12-28 04:50:28,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 04:50:28,837 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)] === [2021-12-28 04:50:28,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:50:28,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1614051123, now seen corresponding path program 1 times [2021-12-28 04:50:28,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:50:28,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614870529] [2021-12-28 04:50:28,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:50:28,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:50:28,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:50:28,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:28,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:50:28,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:28,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:50:28,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:28,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 04:50:28,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:28,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:50:28,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:29,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:29,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:29,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 04:50:29,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:29,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:29,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:29,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 04:50:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:29,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:29,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:29,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 04:50:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:29,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:29,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:29,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 04:50:29,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:29,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:29,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:29,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 04:50:29,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:29,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:50:29,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:29,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:50:29,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:29,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-28 04:50:29,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:29,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 04:50:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:29,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:29,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:29,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-28 04:50:29,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:29,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-28 04:50:29,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:29,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-28 04:50:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:29,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-28 04:50:29,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:29,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:50:29,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:29,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-28 04:50:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:29,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-28 04:50:29,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:29,130 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2021-12-28 04:50:29,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:50:29,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614870529] [2021-12-28 04:50:29,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614870529] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:50:29,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:50:29,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 04:50:29,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381944106] [2021-12-28 04:50:29,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:50:29,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 04:50:29,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:50:29,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 04:50:29,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:50:29,132 INFO L87 Difference]: Start difference. First operand 14687 states and 20450 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-28 04:50:33,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:50:33,202 INFO L93 Difference]: Finished difference Result 29801 states and 41573 transitions. [2021-12-28 04:50:33,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 04:50:33,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 206 [2021-12-28 04:50:33,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:50:33,274 INFO L225 Difference]: With dead ends: 29801 [2021-12-28 04:50:33,274 INFO L226 Difference]: Without dead ends: 19886 [2021-12-28 04:50:33,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 04:50:33,312 INFO L933 BasicCegarLoop]: 3790 mSDtfsCounter, 2655 mSDsluCounter, 3768 mSDsCounter, 0 mSdLazyCounter, 2910 mSolverCounterSat, 1828 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2898 SdHoareTripleChecker+Valid, 7558 SdHoareTripleChecker+Invalid, 4738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1828 IncrementalHoareTripleChecker+Valid, 2910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-12-28 04:50:33,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2898 Valid, 7558 Invalid, 4738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1828 Valid, 2910 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-12-28 04:50:33,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19886 states. [2021-12-28 04:50:33,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19886 to 19484. [2021-12-28 04:50:33,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19484 states, 13590 states have (on average 1.2770419426048565) internal successors, (17355), 13980 states have internal predecessors, (17355), 4804 states have call successors, (4804), 1060 states have call predecessors, (4804), 1087 states have return successors, (4964), 4571 states have call predecessors, (4964), 4800 states have call successors, (4964) [2021-12-28 04:50:33,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19484 states to 19484 states and 27123 transitions. [2021-12-28 04:50:33,956 INFO L78 Accepts]: Start accepts. Automaton has 19484 states and 27123 transitions. Word has length 206 [2021-12-28 04:50:33,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:50:33,957 INFO L470 AbstractCegarLoop]: Abstraction has 19484 states and 27123 transitions. [2021-12-28 04:50:33,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-28 04:50:33,957 INFO L276 IsEmpty]: Start isEmpty. Operand 19484 states and 27123 transitions. [2021-12-28 04:50:33,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-12-28 04:50:33,962 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:50:33,963 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 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] [2021-12-28 04:50:33,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-28 04:50:33,963 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)] === [2021-12-28 04:50:33,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:50:33,963 INFO L85 PathProgramCache]: Analyzing trace with hash -786650282, now seen corresponding path program 1 times [2021-12-28 04:50:33,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:50:33,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943435185] [2021-12-28 04:50:33,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:50:33,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:50:34,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:34,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:50:34,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:34,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:34,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:34,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:50:34,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:34,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:34,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:50:34,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:34,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:34,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:34,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 04:50:34,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:34,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:34,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:34,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:50:34,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:34,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:34,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:34,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 04:50:34,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:34,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:34,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:34,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 04:50:34,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:34,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:34,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:34,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 04:50:34,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:34,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:34,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:34,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 04:50:34,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:34,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:34,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:34,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 04:50:34,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:34,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:50:34,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:34,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:50:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:34,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-28 04:50:34,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:34,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 04:50:34,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:34,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:34,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:34,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-28 04:50:34,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:34,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-28 04:50:34,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:34,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-28 04:50:34,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:34,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-28 04:50:34,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:34,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-28 04:50:34,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:34,204 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2021-12-28 04:50:34,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:50:34,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943435185] [2021-12-28 04:50:34,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943435185] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:50:34,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:50:34,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:50:34,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662566901] [2021-12-28 04:50:34,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:50:34,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:50:34,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:50:34,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:50:34,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:50:34,206 INFO L87 Difference]: Start difference. First operand 19484 states and 27123 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-28 04:50:36,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:50:36,498 INFO L93 Difference]: Finished difference Result 19862 states and 27725 transitions. [2021-12-28 04:50:36,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:50:36,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 197 [2021-12-28 04:50:36,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:50:36,567 INFO L225 Difference]: With dead ends: 19862 [2021-12-28 04:50:36,567 INFO L226 Difference]: Without dead ends: 19860 [2021-12-28 04:50:36,581 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 [2021-12-28 04:50:36,582 INFO L933 BasicCegarLoop]: 2033 mSDtfsCounter, 2176 mSDsluCounter, 3384 mSDsCounter, 0 mSdLazyCounter, 2260 mSolverCounterSat, 792 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2407 SdHoareTripleChecker+Valid, 5417 SdHoareTripleChecker+Invalid, 3052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 792 IncrementalHoareTripleChecker+Valid, 2260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-28 04:50:36,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2407 Valid, 5417 Invalid, 3052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [792 Valid, 2260 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-28 04:50:36,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19860 states. [2021-12-28 04:50:37,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19860 to 19488. [2021-12-28 04:50:37,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19488 states, 13593 states have (on average 1.2769807989406312) internal successors, (17358), 13983 states have internal predecessors, (17358), 4804 states have call successors, (4804), 1061 states have call predecessors, (4804), 1088 states have return successors, (4964), 4571 states have call predecessors, (4964), 4800 states have call successors, (4964) [2021-12-28 04:50:37,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19488 states to 19488 states and 27126 transitions. [2021-12-28 04:50:37,340 INFO L78 Accepts]: Start accepts. Automaton has 19488 states and 27126 transitions. Word has length 197 [2021-12-28 04:50:37,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:50:37,341 INFO L470 AbstractCegarLoop]: Abstraction has 19488 states and 27126 transitions. [2021-12-28 04:50:37,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-28 04:50:37,341 INFO L276 IsEmpty]: Start isEmpty. Operand 19488 states and 27126 transitions. [2021-12-28 04:50:37,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-12-28 04:50:37,347 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:50:37,348 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 9, 9, 9, 9, 9, 9, 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] [2021-12-28 04:50:37,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-28 04:50:37,348 INFO L402 AbstractCegarLoop]: === Iteration 9 === 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)] === [2021-12-28 04:50:37,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:50:37,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1602830158, now seen corresponding path program 1 times [2021-12-28 04:50:37,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:50:37,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732934520] [2021-12-28 04:50:37,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:50:37,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:50:37,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:37,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:50:37,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:37,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:37,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:37,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:50:37,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:37,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:37,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:37,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:50:37,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:37,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:37,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:37,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 04:50:37,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:37,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:37,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:37,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:50:37,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:37,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:37,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:37,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 04:50:37,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:37,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:37,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 04:50:37,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:37,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:37,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 04:50:37,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:37,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:37,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:37,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 04:50:37,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:37,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:37,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 04:50:37,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:37,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-28 04:50:37,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:37,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 04:50:37,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:37,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:37,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:37,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 04:50:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:37,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:50:37,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:37,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 04:50:37,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:37,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-28 04:50:37,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:37,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-28 04:50:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:37,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-28 04:50:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:37,656 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-12-28 04:50:37,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:50:37,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732934520] [2021-12-28 04:50:37,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732934520] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:50:37,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:50:37,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:50:37,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443961173] [2021-12-28 04:50:37,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:50:37,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:50:37,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:50:37,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:50:37,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:50:37,658 INFO L87 Difference]: Start difference. First operand 19488 states and 27126 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-28 04:50:43,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:50:43,954 INFO L93 Difference]: Finished difference Result 42013 states and 58320 transitions. [2021-12-28 04:50:43,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:50:43,955 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 195 [2021-12-28 04:50:43,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:50:44,078 INFO L225 Difference]: With dead ends: 42013 [2021-12-28 04:50:44,090 INFO L226 Difference]: Without dead ends: 22548 [2021-12-28 04:50:44,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-28 04:50:44,151 INFO L933 BasicCegarLoop]: 2521 mSDtfsCounter, 1631 mSDsluCounter, 3587 mSDsCounter, 0 mSdLazyCounter, 3476 mSolverCounterSat, 847 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1883 SdHoareTripleChecker+Valid, 6108 SdHoareTripleChecker+Invalid, 4323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 847 IncrementalHoareTripleChecker+Valid, 3476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-12-28 04:50:44,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1883 Valid, 6108 Invalid, 4323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [847 Valid, 3476 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2021-12-28 04:50:44,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22548 states. [2021-12-28 04:50:44,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22548 to 21872. [2021-12-28 04:50:44,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21872 states, 15514 states have (on average 1.2702720123759186) internal successors, (19707), 15895 states have internal predecessors, (19707), 5092 states have call successors, (5092), 1247 states have call predecessors, (5092), 1263 states have return successors, (5211), 4858 states have call predecessors, (5211), 5088 states have call successors, (5211) [2021-12-28 04:50:44,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21872 states to 21872 states and 30010 transitions. [2021-12-28 04:50:45,006 INFO L78 Accepts]: Start accepts. Automaton has 21872 states and 30010 transitions. Word has length 195 [2021-12-28 04:50:45,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:50:45,006 INFO L470 AbstractCegarLoop]: Abstraction has 21872 states and 30010 transitions. [2021-12-28 04:50:45,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-28 04:50:45,007 INFO L276 IsEmpty]: Start isEmpty. Operand 21872 states and 30010 transitions. [2021-12-28 04:50:45,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-12-28 04:50:45,011 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:50:45,012 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:50:45,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-28 04:50:45,012 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)] === [2021-12-28 04:50:45,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:50:45,012 INFO L85 PathProgramCache]: Analyzing trace with hash -2028223105, now seen corresponding path program 1 times [2021-12-28 04:50:45,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:50:45,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914050703] [2021-12-28 04:50:45,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:50:45,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:50:45,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:45,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:50:45,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:45,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:45,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:45,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:50:45,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:45,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:45,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:45,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:50:45,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:45,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:45,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:45,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 04:50:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:45,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:45,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:45,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:50:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:45,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:45,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:45,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 04:50:45,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:45,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:45,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:45,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 04:50:45,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:45,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:45,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:45,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 04:50:45,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:45,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:45,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:45,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 04:50:45,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:45,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:45,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:45,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 04:50:45,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:45,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:50:45,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:45,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:50:45,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:45,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-28 04:50:45,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:45,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 04:50:45,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:45,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:45,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:45,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-28 04:50:45,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:45,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-28 04:50:45,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:45,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-28 04:50:45,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:45,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-28 04:50:45,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:45,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-28 04:50:45,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:45,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-28 04:50:45,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:45,345 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2021-12-28 04:50:45,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:50:45,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914050703] [2021-12-28 04:50:45,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914050703] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:50:45,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:50:45,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:50:45,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155169724] [2021-12-28 04:50:45,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:50:45,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:50:45,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:50:45,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:50:45,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:50:45,348 INFO L87 Difference]: Start difference. First operand 21872 states and 30010 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-28 04:50:48,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:50:48,084 INFO L93 Difference]: Finished difference Result 22370 states and 30783 transitions. [2021-12-28 04:50:48,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:50:48,085 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 202 [2021-12-28 04:50:48,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:50:48,152 INFO L225 Difference]: With dead ends: 22370 [2021-12-28 04:50:48,152 INFO L226 Difference]: Without dead ends: 22368 [2021-12-28 04:50:48,163 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 [2021-12-28 04:50:48,164 INFO L933 BasicCegarLoop]: 2033 mSDtfsCounter, 2174 mSDsluCounter, 3382 mSDsCounter, 0 mSdLazyCounter, 2263 mSolverCounterSat, 790 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2407 SdHoareTripleChecker+Valid, 5415 SdHoareTripleChecker+Invalid, 3053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 790 IncrementalHoareTripleChecker+Valid, 2263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-28 04:50:48,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2407 Valid, 5415 Invalid, 3053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [790 Valid, 2263 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-28 04:50:48,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22368 states. [2021-12-28 04:50:49,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22368 to 21876. [2021-12-28 04:50:49,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21876 states, 15517 states have (on average 1.2702197589740285) internal successors, (19710), 15898 states have internal predecessors, (19710), 5092 states have call successors, (5092), 1248 states have call predecessors, (5092), 1264 states have return successors, (5211), 4858 states have call predecessors, (5211), 5088 states have call successors, (5211) [2021-12-28 04:50:49,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21876 states to 21876 states and 30013 transitions. [2021-12-28 04:50:49,164 INFO L78 Accepts]: Start accepts. Automaton has 21876 states and 30013 transitions. Word has length 202 [2021-12-28 04:50:49,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:50:49,165 INFO L470 AbstractCegarLoop]: Abstraction has 21876 states and 30013 transitions. [2021-12-28 04:50:49,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-28 04:50:49,165 INFO L276 IsEmpty]: Start isEmpty. Operand 21876 states and 30013 transitions. [2021-12-28 04:50:49,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-12-28 04:50:49,170 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:50:49,170 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:50:49,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-28 04:50:49,171 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)] === [2021-12-28 04:50:49,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:50:49,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1552987318, now seen corresponding path program 1 times [2021-12-28 04:50:49,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:50:49,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827029828] [2021-12-28 04:50:49,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:50:49,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:50:49,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:50:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:49,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:50:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:49,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:50:49,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:49,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 04:50:49,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:49,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:50:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:49,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 04:50:49,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:49,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 04:50:49,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:49,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 04:50:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:49,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 04:50:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:49,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 04:50:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:50:49,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:50:49,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-28 04:50:49,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 04:50:49,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:49,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-28 04:50:49,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-28 04:50:49,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-28 04:50:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-28 04:50:49,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-28 04:50:49,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-28 04:50:49,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-28 04:50:49,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,473 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2021-12-28 04:50:49,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:50:49,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827029828] [2021-12-28 04:50:49,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827029828] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:50:49,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:50:49,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:50:49,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981920439] [2021-12-28 04:50:49,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:50:49,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:50:49,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:50:49,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:50:49,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:50:49,476 INFO L87 Difference]: Start difference. First operand 21876 states and 30013 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-28 04:50:52,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:50:52,236 INFO L93 Difference]: Finished difference Result 22374 states and 30786 transitions. [2021-12-28 04:50:52,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:50:52,236 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 207 [2021-12-28 04:50:52,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:50:52,325 INFO L225 Difference]: With dead ends: 22374 [2021-12-28 04:50:52,325 INFO L226 Difference]: Without dead ends: 22372 [2021-12-28 04:50:52,344 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 [2021-12-28 04:50:52,344 INFO L933 BasicCegarLoop]: 2035 mSDtfsCounter, 2174 mSDsluCounter, 3388 mSDsCounter, 0 mSdLazyCounter, 2263 mSolverCounterSat, 789 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2405 SdHoareTripleChecker+Valid, 5423 SdHoareTripleChecker+Invalid, 3052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 789 IncrementalHoareTripleChecker+Valid, 2263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-28 04:50:52,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2405 Valid, 5423 Invalid, 3052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [789 Valid, 2263 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-28 04:50:52,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22372 states. [2021-12-28 04:50:53,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22372 to 21880. [2021-12-28 04:50:53,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21880 states, 15520 states have (on average 1.270167525773196) internal successors, (19713), 15901 states have internal predecessors, (19713), 5092 states have call successors, (5092), 1249 states have call predecessors, (5092), 1265 states have return successors, (5211), 4858 states have call predecessors, (5211), 5088 states have call successors, (5211) [2021-12-28 04:50:53,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21880 states to 21880 states and 30016 transitions. [2021-12-28 04:50:53,272 INFO L78 Accepts]: Start accepts. Automaton has 21880 states and 30016 transitions. Word has length 207 [2021-12-28 04:50:53,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:50:53,272 INFO L470 AbstractCegarLoop]: Abstraction has 21880 states and 30016 transitions. [2021-12-28 04:50:53,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-28 04:50:53,273 INFO L276 IsEmpty]: Start isEmpty. Operand 21880 states and 30016 transitions. [2021-12-28 04:50:53,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-12-28 04:50:53,278 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:50:53,278 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 6, 5, 5, 4, 4, 4, 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] [2021-12-28 04:50:53,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-28 04:50:53,278 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)] === [2021-12-28 04:50:53,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:50:53,279 INFO L85 PathProgramCache]: Analyzing trace with hash 64014239, now seen corresponding path program 1 times [2021-12-28 04:50:53,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:50:53,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219366474] [2021-12-28 04:50:53,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:50:53,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:50:53,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:50:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:53,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:50:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:53,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:50:53,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 04:50:53,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:53,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:50:53,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:53,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 04:50:53,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:53,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 04:50:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:53,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 04:50:53,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:53,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 04:50:53,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:53,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 04:50:53,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:50:53,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:50:53,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-28 04:50:53,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 04:50:53,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:53,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-28 04:50:53,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-28 04:50:53,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-28 04:50:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-28 04:50:53,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-28 04:50:53,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-28 04:50:53,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-28 04:50:53,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-28 04:50:53,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:53,518 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 526 trivial. 0 not checked. [2021-12-28 04:50:53,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:50:53,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219366474] [2021-12-28 04:50:53,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219366474] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:50:53,519 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:50:53,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:50:53,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221377934] [2021-12-28 04:50:53,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:50:53,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:50:53,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:50:53,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:50:53,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:50:53,521 INFO L87 Difference]: Start difference. First operand 21880 states and 30016 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-28 04:50:56,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:50:56,402 INFO L93 Difference]: Finished difference Result 22378 states and 30789 transitions. [2021-12-28 04:50:56,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:50:56,403 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 212 [2021-12-28 04:50:56,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:50:56,476 INFO L225 Difference]: With dead ends: 22378 [2021-12-28 04:50:56,477 INFO L226 Difference]: Without dead ends: 22376 [2021-12-28 04:50:56,489 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 [2021-12-28 04:50:56,490 INFO L933 BasicCegarLoop]: 2031 mSDtfsCounter, 2176 mSDsluCounter, 3378 mSDsCounter, 0 mSdLazyCounter, 2260 mSolverCounterSat, 789 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2409 SdHoareTripleChecker+Valid, 5409 SdHoareTripleChecker+Invalid, 3049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 789 IncrementalHoareTripleChecker+Valid, 2260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-28 04:50:56,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2409 Valid, 5409 Invalid, 3049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [789 Valid, 2260 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-28 04:50:56,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22376 states. [2021-12-28 04:50:57,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22376 to 21884. [2021-12-28 04:50:57,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21884 states, 15523 states have (on average 1.2701153127617084) internal successors, (19716), 15904 states have internal predecessors, (19716), 5092 states have call successors, (5092), 1250 states have call predecessors, (5092), 1266 states have return successors, (5211), 4858 states have call predecessors, (5211), 5088 states have call successors, (5211) [2021-12-28 04:50:57,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21884 states to 21884 states and 30019 transitions. [2021-12-28 04:50:57,529 INFO L78 Accepts]: Start accepts. Automaton has 21884 states and 30019 transitions. Word has length 212 [2021-12-28 04:50:57,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:50:57,529 INFO L470 AbstractCegarLoop]: Abstraction has 21884 states and 30019 transitions. [2021-12-28 04:50:57,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-28 04:50:57,529 INFO L276 IsEmpty]: Start isEmpty. Operand 21884 states and 30019 transitions. [2021-12-28 04:50:57,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-12-28 04:50:57,534 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:50:57,534 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 7, 6, 6, 4, 4, 4, 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] [2021-12-28 04:50:57,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-28 04:50:57,535 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)] === [2021-12-28 04:50:57,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:50:57,535 INFO L85 PathProgramCache]: Analyzing trace with hash 696399382, now seen corresponding path program 1 times [2021-12-28 04:50:57,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:50:57,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520719768] [2021-12-28 04:50:57,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:50:57,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:50:57,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:50:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:57,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:50:57,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:57,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:50:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 04:50:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:57,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:50:57,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:57,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 04:50:57,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 04:50:57,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:57,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 04:50:57,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 04:50:57,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:57,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 04:50:57,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:50:57,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:50:57,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-28 04:50:57,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 04:50:57,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:57,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-28 04:50:57,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-28 04:50:57,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-28 04:50:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-28 04:50:57,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-28 04:50:57,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-28 04:50:57,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-28 04:50:57,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-28 04:50:57,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-28 04:50:57,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:57,777 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2021-12-28 04:50:57,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:50:57,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520719768] [2021-12-28 04:50:57,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520719768] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:50:57,778 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:50:57,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:50:57,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730361117] [2021-12-28 04:50:57,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:50:57,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:50:57,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:50:57,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:50:57,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:50:57,779 INFO L87 Difference]: Start difference. First operand 21884 states and 30019 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-28 04:51:00,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:51:00,942 INFO L93 Difference]: Finished difference Result 23780 states and 32304 transitions. [2021-12-28 04:51:00,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 04:51:00,942 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 217 [2021-12-28 04:51:00,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:51:01,006 INFO L225 Difference]: With dead ends: 23780 [2021-12-28 04:51:01,006 INFO L226 Difference]: Without dead ends: 23778 [2021-12-28 04:51:01,015 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 [2021-12-28 04:51:01,016 INFO L933 BasicCegarLoop]: 2055 mSDtfsCounter, 2001 mSDsluCounter, 3638 mSDsCounter, 0 mSdLazyCounter, 2610 mSolverCounterSat, 794 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2218 SdHoareTripleChecker+Valid, 5693 SdHoareTripleChecker+Invalid, 3404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 794 IncrementalHoareTripleChecker+Valid, 2610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-28 04:51:01,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2218 Valid, 5693 Invalid, 3404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [794 Valid, 2610 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-28 04:51:01,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23778 states. [2021-12-28 04:51:01,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23778 to 23187. [2021-12-28 04:51:01,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23187 states, 16405 states have (on average 1.2605303261200853) internal successors, (20679), 16795 states have internal predecessors, (20679), 5305 states have call successors, (5305), 1458 states have call predecessors, (5305), 1474 states have return successors, (5424), 5071 states have call predecessors, (5424), 5301 states have call successors, (5424) [2021-12-28 04:51:01,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23187 states to 23187 states and 31408 transitions. [2021-12-28 04:51:01,927 INFO L78 Accepts]: Start accepts. Automaton has 23187 states and 31408 transitions. Word has length 217 [2021-12-28 04:51:01,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:51:01,927 INFO L470 AbstractCegarLoop]: Abstraction has 23187 states and 31408 transitions. [2021-12-28 04:51:01,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-28 04:51:01,928 INFO L276 IsEmpty]: Start isEmpty. Operand 23187 states and 31408 transitions. [2021-12-28 04:51:01,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-12-28 04:51:01,933 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:51:01,933 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 8, 7, 7, 4, 4, 4, 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] [2021-12-28 04:51:01,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-28 04:51:01,933 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)] === [2021-12-28 04:51:01,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:51:01,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1790136767, now seen corresponding path program 1 times [2021-12-28 04:51:01,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:51:01,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134935294] [2021-12-28 04:51:01,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:51:01,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:51:01,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:51:02,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:51:02,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:51:02,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:51:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:51:02,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:51:02,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 04:51:02,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:51:02,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:51:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:51:02,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 04:51:02,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:51:02,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 04:51:02,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:51:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 04:51:02,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:51:02,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 04:51:02,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:51:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 04:51:02,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:51:02,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:51:02,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-28 04:51:02,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 04:51:02,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:51:02,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-28 04:51:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-28 04:51:02,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-28 04:51:02,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-28 04:51:02,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-28 04:51:02,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-28 04:51:02,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-28 04:51:02,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-28 04:51:02,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-28 04:51:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-28 04:51:02,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:51:02,186 INFO L134 CoverageAnalysis]: Checked inductivity of 584 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2021-12-28 04:51:02,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:51:02,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134935294] [2021-12-28 04:51:02,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134935294] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:51:02,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:51:02,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:51:02,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927733331] [2021-12-28 04:51:02,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:51:02,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:51:02,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:51:02,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:51:02,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:51:02,189 INFO L87 Difference]: Start difference. First operand 23187 states and 31408 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25)