./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-amd-amd8111e.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 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-amd-amd8111e.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 8dda3f7c080a6e7302d861accabde0bee64e4cb5e7a0fb77650fdd775ecd7779 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 17:03:38,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 17:03:38,910 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 17:03:38,959 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 17:03:38,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 17:03:38,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 17:03:38,964 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 17:03:38,967 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 17:03:38,970 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 17:03:38,972 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 17:03:38,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 17:03:38,975 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 17:03:38,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 17:03:38,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 17:03:38,981 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 17:03:38,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 17:03:38,988 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 17:03:38,989 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 17:03:38,992 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 17:03:38,994 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 17:03:38,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 17:03:38,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 17:03:39,000 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 17:03:39,001 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 17:03:39,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 17:03:39,008 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 17:03:39,009 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 17:03:39,010 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 17:03:39,011 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 17:03:39,012 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 17:03:39,012 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 17:03:39,013 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 17:03:39,014 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 17:03:39,014 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 17:03:39,015 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 17:03:39,016 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 17:03:39,016 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 17:03:39,017 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 17:03:39,017 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 17:03:39,018 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 17:03:39,019 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 17:03:39,019 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 17:03:39,042 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 17:03:39,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 17:03:39,045 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 17:03:39,045 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 17:03:39,046 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 17:03:39,046 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 17:03:39,047 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 17:03:39,047 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 17:03:39,047 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 17:03:39,047 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 17:03:39,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 17:03:39,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 17:03:39,048 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 17:03:39,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 17:03:39,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 17:03:39,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 17:03:39,049 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 17:03:39,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 17:03:39,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 17:03:39,049 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 17:03:39,049 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 17:03:39,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 17:03:39,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 17:03:39,050 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 17:03:39,050 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 17:03:39,050 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 17:03:39,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 17:03:39,050 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 17:03:39,051 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 17:03:39,051 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 17:03:39,051 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 17:03:39,051 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8dda3f7c080a6e7302d861accabde0bee64e4cb5e7a0fb77650fdd775ecd7779 [2021-12-21 17:03:39,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 17:03:39,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 17:03:39,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 17:03:39,319 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 17:03:39,320 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 17:03:39,321 INFO L432 ainManager$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-amd-amd8111e.cil.i [2021-12-21 17:03:39,389 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb926add1/0e4643c789f4468ab173971d129b539c/FLAG6ba0b5e27 [2021-12-21 17:03:40,122 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 17:03:40,123 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-amd-amd8111e.cil.i [2021-12-21 17:03:40,169 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb926add1/0e4643c789f4468ab173971d129b539c/FLAG6ba0b5e27 [2021-12-21 17:03:40,688 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb926add1/0e4643c789f4468ab173971d129b539c [2021-12-21 17:03:40,690 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 17:03:40,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 17:03:40,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 17:03:40,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 17:03:40,713 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 17:03:40,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 05:03:40" (1/1) ... [2021-12-21 17:03:40,714 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26f96475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:03:40, skipping insertion in model container [2021-12-21 17:03:40,714 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 05:03:40" (1/1) ... [2021-12-21 17:03:40,719 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 17:03:40,839 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 17:03:42,942 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-amd-amd8111e.cil.i[334651,334664] [2021-12-21 17:03:42,944 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-amd-amd8111e.cil.i[334820,334833] [2021-12-21 17:03:42,944 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-amd-amd8111e.cil.i[334987,335000] [2021-12-21 17:03:42,944 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-amd-amd8111e.cil.i[335155,335168] [2021-12-21 17:03:42,961 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 17:03:42,999 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 17:03:43,221 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-amd-amd8111e.cil.i[334651,334664] [2021-12-21 17:03:43,222 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-amd-amd8111e.cil.i[334820,334833] [2021-12-21 17:03:43,222 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-amd-amd8111e.cil.i[334987,335000] [2021-12-21 17:03:43,222 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-amd-amd8111e.cil.i[335155,335168] [2021-12-21 17:03:43,228 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 17:03:43,361 INFO L208 MainTranslator]: Completed translation [2021-12-21 17:03:43,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:03:43 WrapperNode [2021-12-21 17:03:43,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 17:03:43,363 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 17:03:43,363 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 17:03:43,363 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 17:03:43,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:03:43" (1/1) ... [2021-12-21 17:03:43,434 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:03:43" (1/1) ... [2021-12-21 17:03:43,577 INFO L137 Inliner]: procedures = 455, calls = 1830, calls flagged for inlining = 226, calls inlined = 204, statements flattened = 4612 [2021-12-21 17:03:43,578 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 17:03:43,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 17:03:43,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 17:03:43,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 17:03:43,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:03:43" (1/1) ... [2021-12-21 17:03:43,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:03:43" (1/1) ... [2021-12-21 17:03:43,659 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:03:43" (1/1) ... [2021-12-21 17:03:43,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:03:43" (1/1) ... [2021-12-21 17:03:43,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:03:43" (1/1) ... [2021-12-21 17:03:43,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:03:43" (1/1) ... [2021-12-21 17:03:43,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:03:43" (1/1) ... [2021-12-21 17:03:43,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 17:03:43,828 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 17:03:43,828 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 17:03:43,830 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 17:03:43,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:03:43" (1/1) ... [2021-12-21 17:03:43,836 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 17:03:43,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 17:03:43,854 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) [2021-12-21 17:03:43,861 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 [2021-12-21 17:03:43,888 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-21 17:03:43,888 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-21 17:03:43,888 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_get_stats [2021-12-21 17:03:43,888 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_get_stats [2021-12-21 17:03:43,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-21 17:03:43,888 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-21 17:03:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-21 17:03:43,889 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-21 17:03:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-21 17:03:43,889 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-21 17:03:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 17:03:43,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 17:03:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-21 17:03:43,889 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-21 17:03:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-21 17:03:43,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-21 17:03:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-12-21 17:03:43,890 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-12-21 17:03:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-21 17:03:43,890 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-21 17:03:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-21 17:03:43,890 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-21 17:03:43,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2021-12-21 17:03:43,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2021-12-21 17:03:43,891 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-21 17:03:43,891 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-21 17:03:43,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-21 17:03:43,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-21 17:03:43,891 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-21 17:03:43,891 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-21 17:03:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-21 17:03:43,892 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-21 17:03:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-21 17:03:43,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-21 17:03:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-12-21 17:03:43,893 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-12-21 17:03:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-21 17:03:43,893 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-21 17:03:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 17:03:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-21 17:03:43,893 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-21 17:03:43,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-12-21 17:03:43,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-12-21 17:03:43,894 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_tx_timeout [2021-12-21 17:03:43,894 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_tx_timeout [2021-12-21 17:03:43,894 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-21 17:03:43,894 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-21 17:03:43,894 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_mdio_read [2021-12-21 17:03:43,895 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_mdio_read [2021-12-21 17:03:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 17:03:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_nway_reset [2021-12-21 17:03:43,896 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_nway_reset [2021-12-21 17:03:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-21 17:03:43,896 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-21 17:03:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_set_rx_buff_len [2021-12-21 17:03:43,896 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_set_rx_buff_len [2021-12-21 17:03:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 17:03:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_open [2021-12-21 17:03:43,897 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_open [2021-12-21 17:03:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-21 17:03:43,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-21 17:03:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 17:03:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-21 17:03:43,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-21 17:03:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-21 17:03:43,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-21 17:03:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-21 17:03:43,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-21 17:03:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-21 17:03:43,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-21 17:03:43,899 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-21 17:03:43,899 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-21 17:03:43,899 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-21 17:03:43,899 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-21 17:03:43,899 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_write_phy [2021-12-21 17:03:43,899 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_write_phy [2021-12-21 17:03:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-21 17:03:43,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-21 17:03:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 17:03:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-21 17:03:43,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-21 17:03:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-21 17:03:43,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-21 17:03:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_read_phy [2021-12-21 17:03:43,901 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_read_phy [2021-12-21 17:03:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-12-21 17:03:43,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-12-21 17:03:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 17:03:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-21 17:03:43,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-21 17:03:43,902 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-21 17:03:43,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-21 17:03:43,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 17:03:43,902 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 17:03:43,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 17:03:43,903 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-21 17:03:43,903 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-21 17:03:43,903 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_remove_one [2021-12-21 17:03:43,903 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_remove_one [2021-12-21 17:03:43,903 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-21 17:03:43,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-21 17:03:43,903 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-12-21 17:03:43,904 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-12-21 17:03:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-21 17:03:43,904 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-21 17:03:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_free_skbs [2021-12-21 17:03:43,904 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_free_skbs [2021-12-21 17:03:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-21 17:03:43,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-21 17:03:43,905 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-21 17:03:43,905 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-21 17:03:43,905 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-21 17:03:43,906 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-21 17:03:43,907 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2021-12-21 17:03:43,908 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2021-12-21 17:03:43,908 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-12-21 17:03:43,908 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-12-21 17:03:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-12-21 17:03:43,909 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-12-21 17:03:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 17:03:43,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 17:03:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_close [2021-12-21 17:03:43,925 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_close [2021-12-21 17:03:43,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 17:03:43,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 17:03:43,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-21 17:03:43,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-21 17:03:43,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-21 17:03:43,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-21 17:03:43,926 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-21 17:03:43,926 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-21 17:03:43,927 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_mdio_write [2021-12-21 17:03:43,927 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_mdio_write [2021-12-21 17:03:43,927 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_read_mib [2021-12-21 17:03:43,927 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_read_mib [2021-12-21 17:03:43,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-21 17:03:43,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-21 17:03:43,927 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_interrupt [2021-12-21 17:03:43,927 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_interrupt [2021-12-21 17:03:43,927 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-21 17:03:43,928 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-21 17:03:43,928 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_set_coalesce [2021-12-21 17:03:43,928 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_set_coalesce [2021-12-21 17:03:43,928 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-21 17:03:43,928 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-21 17:03:43,928 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-21 17:03:43,928 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-21 17:03:43,928 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-21 17:03:43,928 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-21 17:03:43,929 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-21 17:03:43,929 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-21 17:03:43,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 17:03:43,929 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-12-21 17:03:43,929 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-12-21 17:03:43,929 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-21 17:03:43,929 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-21 17:03:43,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 17:03:43,929 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_disable_interrupt [2021-12-21 17:03:43,930 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_disable_interrupt [2021-12-21 17:03:43,930 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-12-21 17:03:43,930 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-12-21 17:03:43,930 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_set_multicast_list [2021-12-21 17:03:43,930 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_set_multicast_list [2021-12-21 17:03:43,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 17:03:43,930 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_resume [2021-12-21 17:03:43,930 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_resume [2021-12-21 17:03:43,930 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-21 17:03:43,930 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-21 17:03:43,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-21 17:03:43,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-21 17:03:43,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-21 17:03:43,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-21 17:03:43,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_66 [2021-12-21 17:03:43,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_66 [2021-12-21 17:03:43,931 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_restart [2021-12-21 17:03:43,931 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_restart [2021-12-21 17:03:43,931 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-21 17:03:43,932 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-21 17:03:43,932 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-21 17:03:43,932 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-21 17:03:43,932 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-21 17:03:43,932 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-21 17:03:43,932 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-21 17:03:43,932 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-21 17:03:43,932 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-21 17:03:43,932 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-21 17:03:43,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 17:03:43,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 17:03:43,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 17:03:43,933 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_stop_chip [2021-12-21 17:03:43,933 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_stop_chip [2021-12-21 17:03:43,933 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-21 17:03:43,933 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-21 17:03:43,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_68 [2021-12-21 17:03:43,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_68 [2021-12-21 17:03:43,934 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_poll [2021-12-21 17:03:43,934 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_poll [2021-12-21 17:03:43,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_amd8111e_priv [2021-12-21 17:03:43,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_amd8111e_priv [2021-12-21 17:03:43,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-21 17:03:43,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-21 17:03:43,934 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-21 17:03:43,934 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-21 17:03:43,934 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_get_regs_len [2021-12-21 17:03:43,935 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_get_regs_len [2021-12-21 17:03:43,935 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-21 17:03:43,935 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-21 17:03:43,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 17:03:43,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_amd8111e_priv [2021-12-21 17:03:43,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_amd8111e_priv [2021-12-21 17:03:43,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-21 17:03:43,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-21 17:03:44,536 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 17:03:44,539 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 17:03:44,994 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-21 17:03:46,446 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-21 17:03:46,510 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 17:03:46,520 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 17:03:46,521 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 17:03:46,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 05:03:46 BoogieIcfgContainer [2021-12-21 17:03:46,523 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 17:03:46,524 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 17:03:46,524 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 17:03:46,527 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 17:03:46,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 05:03:40" (1/3) ... [2021-12-21 17:03:46,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52f84457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 05:03:46, skipping insertion in model container [2021-12-21 17:03:46,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:03:43" (2/3) ... [2021-12-21 17:03:46,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52f84457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 05:03:46, skipping insertion in model container [2021-12-21 17:03:46,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 05:03:46" (3/3) ... [2021-12-21 17:03:46,529 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i [2021-12-21 17:03:46,532 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 17:03:46,532 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-21 17:03:46,606 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 17:03:46,610 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 [2021-12-21 17:03:46,610 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-21 17:03:46,644 INFO L276 IsEmpty]: Start isEmpty. Operand has 1805 states, 1186 states have (on average 1.245362563237774) internal successors, (1477), 1219 states have internal predecessors, (1477), 519 states have call successors, (519), 98 states have call predecessors, (519), 97 states have return successors, (514), 505 states have call predecessors, (514), 514 states have call successors, (514) [2021-12-21 17:03:46,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-21 17:03:46,652 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:03:46,653 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:03:46,653 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:03:46,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:03:46,657 INFO L85 PathProgramCache]: Analyzing trace with hash 2048454615, now seen corresponding path program 1 times [2021-12-21 17:03:46,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:03:46,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377783661] [2021-12-21 17:03:46,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:03:46,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:03:46,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:47,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:03:47,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:47,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:03:47,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:47,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:03:47,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:47,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:03:47,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:47,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:03:47,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:47,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:03:47,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:47,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:03:47,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:47,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:03:47,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:47,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:03:47,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:47,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:03:47,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:47,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:03:47,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:47,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:03:47,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:47,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:03:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:47,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:03:47,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:47,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:03:47,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:47,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:03:47,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:47,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:03:47,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:47,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:03:47,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:47,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:03:47,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:47,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:03:47,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:47,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 17:03:47,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:47,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-21 17:03:47,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:47,315 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-12-21 17:03:47,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:03:47,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377783661] [2021-12-21 17:03:47,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377783661] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:03:47,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:03:47,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:03:47,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424613875] [2021-12-21 17:03:47,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:03:47,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:03:47,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:03:47,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:03:47,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:03:47,363 INFO L87 Difference]: Start difference. First operand has 1805 states, 1186 states have (on average 1.245362563237774) internal successors, (1477), 1219 states have internal predecessors, (1477), 519 states have call successors, (519), 98 states have call predecessors, (519), 97 states have return successors, (514), 505 states have call predecessors, (514), 514 states have call successors, (514) Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2021-12-21 17:03:51,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:03:51,193 INFO L93 Difference]: Finished difference Result 5425 states and 7750 transitions. [2021-12-21 17:03:51,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:03:51,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 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 134 [2021-12-21 17:03:51,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:03:51,244 INFO L225 Difference]: With dead ends: 5425 [2021-12-21 17:03:51,244 INFO L226 Difference]: Without dead ends: 3635 [2021-12-21 17:03:51,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:03:51,264 INFO L933 BasicCegarLoop]: 2527 mSDtfsCounter, 3376 mSDsluCounter, 2222 mSDsCounter, 0 mSdLazyCounter, 2015 mSolverCounterSat, 1753 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3867 SdHoareTripleChecker+Valid, 4749 SdHoareTripleChecker+Invalid, 3768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1753 IncrementalHoareTripleChecker+Valid, 2015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-12-21 17:03:51,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3867 Valid, 4749 Invalid, 3768 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1753 Valid, 2015 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-12-21 17:03:51,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3635 states. [2021-12-21 17:03:51,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3635 to 3497. [2021-12-21 17:03:51,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3497 states, 2310 states have (on average 1.2363636363636363) internal successors, (2856), 2374 states have internal predecessors, (2856), 993 states have call successors, (993), 192 states have call predecessors, (993), 191 states have return successors, (990), 972 states have call predecessors, (990), 990 states have call successors, (990) [2021-12-21 17:03:51,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3497 states to 3497 states and 4839 transitions. [2021-12-21 17:03:51,518 INFO L78 Accepts]: Start accepts. Automaton has 3497 states and 4839 transitions. Word has length 134 [2021-12-21 17:03:51,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:03:51,521 INFO L470 AbstractCegarLoop]: Abstraction has 3497 states and 4839 transitions. [2021-12-21 17:03:51,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2021-12-21 17:03:51,521 INFO L276 IsEmpty]: Start isEmpty. Operand 3497 states and 4839 transitions. [2021-12-21 17:03:51,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-21 17:03:51,532 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:03:51,533 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:03:51,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 17:03:51,533 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:03:51,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:03:51,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1730628574, now seen corresponding path program 1 times [2021-12-21 17:03:51,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:03:51,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354006673] [2021-12-21 17:03:51,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:03:51,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:03:51,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:51,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:03:51,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:51,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:03:51,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:51,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:03:51,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:51,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:03:51,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:51,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:03:51,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:51,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:03:51,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:51,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:03:51,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:51,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:03:51,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:51,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:03:51,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:51,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:03:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:51,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:03:51,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:51,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:03:51,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:51,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:03:51,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:51,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:03:51,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:51,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:03:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:51,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:03:51,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:51,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:03:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:51,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:03:51,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:51,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:03:51,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:51,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:03:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:51,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 17:03:51,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:51,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-21 17:03:51,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:51,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-21 17:03:51,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:51,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-21 17:03:51,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:51,854 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-12-21 17:03:51,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:03:51,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354006673] [2021-12-21 17:03:51,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354006673] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:03:51,855 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:03:51,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:03:51,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047370797] [2021-12-21 17:03:51,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:03:51,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:03:51,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:03:51,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:03:51,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:03:51,859 INFO L87 Difference]: Start difference. First operand 3497 states and 4839 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, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-21 17:03:55,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:03:55,514 INFO L93 Difference]: Finished difference Result 10597 states and 14741 transitions. [2021-12-21 17:03:55,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:03:55,515 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, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 148 [2021-12-21 17:03:55,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:03:55,549 INFO L225 Difference]: With dead ends: 10597 [2021-12-21 17:03:55,549 INFO L226 Difference]: Without dead ends: 7125 [2021-12-21 17:03:55,564 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:03:55,565 INFO L933 BasicCegarLoop]: 2589 mSDtfsCounter, 3339 mSDsluCounter, 2252 mSDsCounter, 0 mSdLazyCounter, 1986 mSolverCounterSat, 1759 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3815 SdHoareTripleChecker+Valid, 4841 SdHoareTripleChecker+Invalid, 3745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1759 IncrementalHoareTripleChecker+Valid, 1986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-12-21 17:03:55,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3815 Valid, 4841 Invalid, 3745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1759 Valid, 1986 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-12-21 17:03:55,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7125 states. [2021-12-21 17:03:55,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7125 to 6926. [2021-12-21 17:03:55,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6926 states, 4584 states have (on average 1.2380017452006982) internal successors, (5675), 4724 states have internal predecessors, (5675), 1948 states have call successors, (1948), 382 states have call predecessors, (1948), 391 states have return successors, (1995), 1901 states have call predecessors, (1995), 1945 states have call successors, (1995) [2021-12-21 17:03:55,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6926 states to 6926 states and 9618 transitions. [2021-12-21 17:03:55,797 INFO L78 Accepts]: Start accepts. Automaton has 6926 states and 9618 transitions. Word has length 148 [2021-12-21 17:03:55,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:03:55,799 INFO L470 AbstractCegarLoop]: Abstraction has 6926 states and 9618 transitions. [2021-12-21 17:03:55,799 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, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-21 17:03:55,799 INFO L276 IsEmpty]: Start isEmpty. Operand 6926 states and 9618 transitions. [2021-12-21 17:03:55,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-12-21 17:03:55,802 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:03:55,802 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:03:55,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 17:03:55,803 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)] === [2021-12-21 17:03:55,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:03:55,803 INFO L85 PathProgramCache]: Analyzing trace with hash 20671367, now seen corresponding path program 1 times [2021-12-21 17:03:55,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:03:55,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539319260] [2021-12-21 17:03:55,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:03:55,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:03:55,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:55,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:03:55,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:55,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:03:55,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:55,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:03:55,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:55,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:03:55,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:55,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:03:55,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:55,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:03:55,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:55,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:03:55,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:55,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:03:55,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:55,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:03:55,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:55,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:03:55,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:55,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:03:55,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:55,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:03:55,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:55,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:03:55,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:55,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:03:55,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:55,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:03:55,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:55,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:03:55,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:55,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:03:55,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:56,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:03:56,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:56,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:03:56,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:56,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:03:56,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:56,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 17:03:56,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:56,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-21 17:03:56,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:03:56,031 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-12-21 17:03:56,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:03:56,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539319260] [2021-12-21 17:03:56,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539319260] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:03:56,031 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:03:56,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:03:56,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736279611] [2021-12-21 17:03:56,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:03:56,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:03:56,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:03:56,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:03:56,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:03:56,033 INFO L87 Difference]: Start difference. First operand 6926 states and 9618 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-21 17:03:59,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:03:59,595 INFO L93 Difference]: Finished difference Result 19808 states and 27520 transitions. [2021-12-21 17:03:59,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:03:59,596 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 146 [2021-12-21 17:03:59,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:03:59,657 INFO L225 Difference]: With dead ends: 19808 [2021-12-21 17:03:59,657 INFO L226 Difference]: Without dead ends: 12907 [2021-12-21 17:03:59,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:03:59,684 INFO L933 BasicCegarLoop]: 2470 mSDtfsCounter, 2985 mSDsluCounter, 2176 mSDsCounter, 0 mSdLazyCounter, 2008 mSolverCounterSat, 1731 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3411 SdHoareTripleChecker+Valid, 4646 SdHoareTripleChecker+Invalid, 3739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1731 IncrementalHoareTripleChecker+Valid, 2008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-12-21 17:03:59,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3411 Valid, 4646 Invalid, 3739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1731 Valid, 2008 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2021-12-21 17:03:59,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12907 states. [2021-12-21 17:04:00,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12907 to 12450. [2021-12-21 17:04:00,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12450 states, 8176 states have (on average 1.236179060665362) internal successors, (10107), 8440 states have internal predecessors, (10107), 3516 states have call successors, (3516), 748 states have call predecessors, (3516), 755 states have return successors, (3583), 3411 states have call predecessors, (3583), 3513 states have call successors, (3583) [2021-12-21 17:04:00,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12450 states to 12450 states and 17206 transitions. [2021-12-21 17:04:00,196 INFO L78 Accepts]: Start accepts. Automaton has 12450 states and 17206 transitions. Word has length 146 [2021-12-21 17:04:00,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:04:00,196 INFO L470 AbstractCegarLoop]: Abstraction has 12450 states and 17206 transitions. [2021-12-21 17:04:00,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-21 17:04:00,197 INFO L276 IsEmpty]: Start isEmpty. Operand 12450 states and 17206 transitions. [2021-12-21 17:04:00,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-12-21 17:04:00,199 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:04:00,199 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:04:00,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 17:04:00,200 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:04:00,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:04:00,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1165994526, now seen corresponding path program 1 times [2021-12-21 17:04:00,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:04:00,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643806440] [2021-12-21 17:04:00,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:04:00,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:04:00,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:00,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:04:00,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:00,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:00,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:00,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:04:00,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:00,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:00,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:04:00,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:00,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:00,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:04:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:00,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:00,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:04:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:00,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:00,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:00,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:04:00,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:00,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:00,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:00,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:04:00,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:00,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:00,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:00,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:04:00,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:00,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:00,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:00,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:04:00,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:00,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:00,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:04:00,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:00,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:00,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 17:04:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:00,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-21 17:04:00,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:00,480 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-12-21 17:04:00,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:04:00,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643806440] [2021-12-21 17:04:00,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643806440] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:04:00,480 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:04:00,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 17:04:00,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241744623] [2021-12-21 17:04:00,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:04:00,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 17:04:00,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:04:00,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 17:04:00,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-21 17:04:00,482 INFO L87 Difference]: Start difference. First operand 12450 states and 17206 transitions. Second operand has 7 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-21 17:04:07,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:04:07,580 INFO L93 Difference]: Finished difference Result 26191 states and 36038 transitions. [2021-12-21 17:04:07,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 17:04:07,581 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 150 [2021-12-21 17:04:07,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:04:07,642 INFO L225 Difference]: With dead ends: 26191 [2021-12-21 17:04:07,642 INFO L226 Difference]: Without dead ends: 13766 [2021-12-21 17:04:07,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-12-21 17:04:07,689 INFO L933 BasicCegarLoop]: 3898 mSDtfsCounter, 7254 mSDsluCounter, 3426 mSDsCounter, 0 mSdLazyCounter, 5840 mSolverCounterSat, 4256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7958 SdHoareTripleChecker+Valid, 7324 SdHoareTripleChecker+Invalid, 10096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4256 IncrementalHoareTripleChecker+Valid, 5840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-12-21 17:04:07,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7958 Valid, 7324 Invalid, 10096 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4256 Valid, 5840 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2021-12-21 17:04:07,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13766 states. [2021-12-21 17:04:08,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13766 to 13204. [2021-12-21 17:04:08,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13204 states, 8824 states have (on average 1.23175430643699) internal successors, (10869), 9102 states have internal predecessors, (10869), 3516 states have call successors, (3516), 861 states have call predecessors, (3516), 861 states have return successors, (3544), 3397 states have call predecessors, (3544), 3513 states have call successors, (3544) [2021-12-21 17:04:08,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13204 states to 13204 states and 17929 transitions. [2021-12-21 17:04:08,295 INFO L78 Accepts]: Start accepts. Automaton has 13204 states and 17929 transitions. Word has length 150 [2021-12-21 17:04:08,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:04:08,297 INFO L470 AbstractCegarLoop]: Abstraction has 13204 states and 17929 transitions. [2021-12-21 17:04:08,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-21 17:04:08,297 INFO L276 IsEmpty]: Start isEmpty. Operand 13204 states and 17929 transitions. [2021-12-21 17:04:08,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-12-21 17:04:08,298 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:04:08,299 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:04:08,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 17:04:08,299 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)] === [2021-12-21 17:04:08,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:04:08,300 INFO L85 PathProgramCache]: Analyzing trace with hash 493196890, now seen corresponding path program 1 times [2021-12-21 17:04:08,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:04:08,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681208967] [2021-12-21 17:04:08,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:04:08,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:04:08,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:08,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:04:08,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:08,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:08,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:04:08,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:08,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:08,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:04:08,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:08,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:08,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:08,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:04:08,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:08,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:08,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:04:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:08,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:08,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:08,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:04:08,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:08,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:08,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:08,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:04:08,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:08,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:08,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:08,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:04:08,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:08,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:08,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:08,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:04:08,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:08,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:08,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:08,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:04:08,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:08,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:08,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:08,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 17:04:08,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:08,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-21 17:04:08,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:08,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-21 17:04:08,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:08,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-21 17:04:08,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:08,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-21 17:04:08,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:08,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:08,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:08,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-21 17:04:08,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:08,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-21 17:04:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:08,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-21 17:04:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:08,562 INFO L134 CoverageAnalysis]: Checked inductivity of 573 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2021-12-21 17:04:08,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:04:08,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681208967] [2021-12-21 17:04:08,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681208967] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:04:08,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:04:08,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:04:08,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085490671] [2021-12-21 17:04:08,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:04:08,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:04:08,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:04:08,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:04:08,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:04:08,564 INFO L87 Difference]: Start difference. First operand 13204 states and 17929 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-21 17:04:12,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:04:12,360 INFO L93 Difference]: Finished difference Result 39931 states and 54448 transitions. [2021-12-21 17:04:12,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:04:12,361 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 186 [2021-12-21 17:04:12,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:04:12,482 INFO L225 Difference]: With dead ends: 39931 [2021-12-21 17:04:12,483 INFO L226 Difference]: Without dead ends: 26809 [2021-12-21 17:04:12,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:04:12,620 INFO L933 BasicCegarLoop]: 2593 mSDtfsCounter, 3348 mSDsluCounter, 2286 mSDsCounter, 0 mSdLazyCounter, 2012 mSolverCounterSat, 1768 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3835 SdHoareTripleChecker+Valid, 4879 SdHoareTripleChecker+Invalid, 3780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1768 IncrementalHoareTripleChecker+Valid, 2012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-12-21 17:04:12,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3835 Valid, 4879 Invalid, 3780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1768 Valid, 2012 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2021-12-21 17:04:12,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26809 states. [2021-12-21 17:04:13,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26809 to 25791. [2021-12-21 17:04:13,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25791 states, 17244 states have (on average 1.2332405474367896) internal successors, (21266), 17766 states have internal predecessors, (21266), 6861 states have call successors, (6861), 1682 states have call predecessors, (6861), 1683 states have return successors, (6920), 6656 states have call predecessors, (6920), 6858 states have call successors, (6920) [2021-12-21 17:04:13,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25791 states to 25791 states and 35047 transitions. [2021-12-21 17:04:13,536 INFO L78 Accepts]: Start accepts. Automaton has 25791 states and 35047 transitions. Word has length 186 [2021-12-21 17:04:13,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:04:13,537 INFO L470 AbstractCegarLoop]: Abstraction has 25791 states and 35047 transitions. [2021-12-21 17:04:13,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-21 17:04:13,538 INFO L276 IsEmpty]: Start isEmpty. Operand 25791 states and 35047 transitions. [2021-12-21 17:04:13,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-12-21 17:04:13,541 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:04:13,541 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:04:13,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 17:04:13,542 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)] === [2021-12-21 17:04:13,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:04:13,542 INFO L85 PathProgramCache]: Analyzing trace with hash 915898716, now seen corresponding path program 1 times [2021-12-21 17:04:13,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:04:13,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890665378] [2021-12-21 17:04:13,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:04:13,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:04:13,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:13,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:04:13,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:13,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:13,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:13,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:04:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:13,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:13,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:13,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:04:13,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:13,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:13,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:13,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:04:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:13,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:13,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:13,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:04:13,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:13,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:13,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:13,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:04:13,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:13,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:13,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:13,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:04:13,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:13,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:13,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:13,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:04:13,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:13,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:13,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:13,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:04:13,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:13,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:13,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:13,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:04:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:13,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:13,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:13,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 17:04:13,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:13,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-21 17:04:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:13,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-21 17:04:13,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:13,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-21 17:04:13,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:13,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-21 17:04:13,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:13,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:13,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:13,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-21 17:04:13,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:13,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-21 17:04:13,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:13,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-21 17:04:13,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:13,857 INFO L134 CoverageAnalysis]: Checked inductivity of 573 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2021-12-21 17:04:13,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:04:13,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890665378] [2021-12-21 17:04:13,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890665378] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:04:13,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:04:13,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:04:13,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360185279] [2021-12-21 17:04:13,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:04:13,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:04:13,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:04:13,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:04:13,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:04:13,860 INFO L87 Difference]: Start difference. First operand 25791 states and 35047 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 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) [2021-12-21 17:04:16,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:04:16,849 INFO L93 Difference]: Finished difference Result 26793 states and 36582 transitions. [2021-12-21 17:04:16,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 17:04:16,849 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 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 186 [2021-12-21 17:04:16,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:04:16,970 INFO L225 Difference]: With dead ends: 26793 [2021-12-21 17:04:16,971 INFO L226 Difference]: Without dead ends: 26791 [2021-12-21 17:04:16,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-21 17:04:16,992 INFO L933 BasicCegarLoop]: 2236 mSDtfsCounter, 2596 mSDsluCounter, 3791 mSDsCounter, 0 mSdLazyCounter, 2445 mSolverCounterSat, 1277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2843 SdHoareTripleChecker+Valid, 6027 SdHoareTripleChecker+Invalid, 3722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1277 IncrementalHoareTripleChecker+Valid, 2445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-21 17:04:16,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2843 Valid, 6027 Invalid, 3722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1277 Valid, 2445 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-21 17:04:17,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26791 states. [2021-12-21 17:04:17,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26791 to 25795. [2021-12-21 17:04:17,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25795 states, 17247 states have (on average 1.2331999768075608) internal successors, (21269), 17769 states have internal predecessors, (21269), 6861 states have call successors, (6861), 1683 states have call predecessors, (6861), 1684 states have return successors, (6920), 6656 states have call predecessors, (6920), 6858 states have call successors, (6920) [2021-12-21 17:04:18,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25795 states to 25795 states and 35050 transitions. [2021-12-21 17:04:18,014 INFO L78 Accepts]: Start accepts. Automaton has 25795 states and 35050 transitions. Word has length 186 [2021-12-21 17:04:18,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:04:18,015 INFO L470 AbstractCegarLoop]: Abstraction has 25795 states and 35050 transitions. [2021-12-21 17:04:18,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 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) [2021-12-21 17:04:18,015 INFO L276 IsEmpty]: Start isEmpty. Operand 25795 states and 35050 transitions. [2021-12-21 17:04:18,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-12-21 17:04:18,017 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:04:18,017 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:04:18,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 17:04:18,018 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)] === [2021-12-21 17:04:18,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:04:18,018 INFO L85 PathProgramCache]: Analyzing trace with hash -920104656, now seen corresponding path program 1 times [2021-12-21 17:04:18,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:04:18,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664612545] [2021-12-21 17:04:18,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:04:18,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:04:18,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:18,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:04:18,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:18,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:18,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:18,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:04:18,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:18,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:18,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:18,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:04:18,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:18,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:18,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:18,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:04:18,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:18,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:18,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:18,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:04:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:18,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:18,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:04:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:18,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:18,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:04:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:18,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:18,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:18,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:04:18,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:18,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:18,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:18,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:04:18,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:18,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:18,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:18,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:04:18,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:18,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:18,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:18,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 17:04:18,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:18,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-21 17:04:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:18,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-21 17:04:18,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:18,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-21 17:04:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:18,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-21 17:04:18,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:18,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:18,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:18,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-21 17:04:18,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:18,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-21 17:04:18,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:18,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-21 17:04:18,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:18,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-21 17:04:18,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:18,605 INFO L134 CoverageAnalysis]: Checked inductivity of 575 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2021-12-21 17:04:18,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:04:18,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664612545] [2021-12-21 17:04:18,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664612545] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:04:18,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:04:18,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:04:18,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019061954] [2021-12-21 17:04:18,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:04:18,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:04:18,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:04:18,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:04:18,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:04:18,608 INFO L87 Difference]: Start difference. First operand 25795 states and 35050 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 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) [2021-12-21 17:04:21,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:04:21,453 INFO L93 Difference]: Finished difference Result 26797 states and 36585 transitions. [2021-12-21 17:04:21,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 17:04:21,454 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 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 191 [2021-12-21 17:04:21,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:04:21,542 INFO L225 Difference]: With dead ends: 26797 [2021-12-21 17:04:21,542 INFO L226 Difference]: Without dead ends: 26795 [2021-12-21 17:04:21,557 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 [2021-12-21 17:04:21,558 INFO L933 BasicCegarLoop]: 2238 mSDtfsCounter, 2588 mSDsluCounter, 3788 mSDsCounter, 0 mSdLazyCounter, 2445 mSolverCounterSat, 1276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2836 SdHoareTripleChecker+Valid, 6026 SdHoareTripleChecker+Invalid, 3721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1276 IncrementalHoareTripleChecker+Valid, 2445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-21 17:04:21,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2836 Valid, 6026 Invalid, 3721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1276 Valid, 2445 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-21 17:04:21,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26795 states. [2021-12-21 17:04:22,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26795 to 25799. [2021-12-21 17:04:22,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25799 states, 17250 states have (on average 1.233159420289855) internal successors, (21272), 17772 states have internal predecessors, (21272), 6861 states have call successors, (6861), 1684 states have call predecessors, (6861), 1685 states have return successors, (6920), 6656 states have call predecessors, (6920), 6858 states have call successors, (6920) [2021-12-21 17:04:22,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25799 states to 25799 states and 35053 transitions. [2021-12-21 17:04:22,514 INFO L78 Accepts]: Start accepts. Automaton has 25799 states and 35053 transitions. Word has length 191 [2021-12-21 17:04:22,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:04:22,515 INFO L470 AbstractCegarLoop]: Abstraction has 25799 states and 35053 transitions. [2021-12-21 17:04:22,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 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) [2021-12-21 17:04:22,515 INFO L276 IsEmpty]: Start isEmpty. Operand 25799 states and 35053 transitions. [2021-12-21 17:04:22,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-12-21 17:04:22,517 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:04:22,517 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:04:22,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-21 17:04:22,518 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)] === [2021-12-21 17:04:22,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:04:22,518 INFO L85 PathProgramCache]: Analyzing trace with hash -173974116, now seen corresponding path program 1 times [2021-12-21 17:04:22,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:04:22,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643694160] [2021-12-21 17:04:22,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:04:22,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:04:22,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:22,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:04:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:22,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:22,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:22,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:04:22,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:22,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:22,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:22,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:04:22,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:22,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:22,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:04:22,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:22,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:22,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:22,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:04:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:22,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:22,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:22,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:04:22,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:22,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:22,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:22,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:04:22,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:22,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:22,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:22,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:04:22,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:22,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:22,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:22,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:04:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:22,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:22,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:22,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:04:22,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:22,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:22,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:22,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 17:04:22,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:22,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-21 17:04:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:22,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-21 17:04:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:22,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-21 17:04:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:22,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-21 17:04:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:22,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:22,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:22,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-21 17:04:22,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:22,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-21 17:04:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:22,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-21 17:04:22,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:22,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-21 17:04:22,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:22,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-21 17:04:22,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:22,993 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2021-12-21 17:04:22,993 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:04:22,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643694160] [2021-12-21 17:04:22,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643694160] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:04:22,994 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:04:22,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:04:22,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88456171] [2021-12-21 17:04:22,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:04:22,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:04:22,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:04:22,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:04:22,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:04:22,996 INFO L87 Difference]: Start difference. First operand 25799 states and 35053 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 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) [2021-12-21 17:04:25,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:04:25,754 INFO L93 Difference]: Finished difference Result 26801 states and 36588 transitions. [2021-12-21 17:04:25,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 17:04:25,754 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 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 196 [2021-12-21 17:04:25,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:04:25,849 INFO L225 Difference]: With dead ends: 26801 [2021-12-21 17:04:25,849 INFO L226 Difference]: Without dead ends: 26799 [2021-12-21 17:04:25,867 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 [2021-12-21 17:04:25,868 INFO L933 BasicCegarLoop]: 2238 mSDtfsCounter, 2588 mSDsluCounter, 3788 mSDsCounter, 0 mSdLazyCounter, 2445 mSolverCounterSat, 1275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2836 SdHoareTripleChecker+Valid, 6026 SdHoareTripleChecker+Invalid, 3720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1275 IncrementalHoareTripleChecker+Valid, 2445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-21 17:04:25,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2836 Valid, 6026 Invalid, 3720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1275 Valid, 2445 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-21 17:04:25,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26799 states. [2021-12-21 17:04:26,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26799 to 25803. [2021-12-21 17:04:26,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25803 states, 17253 states have (on average 1.2331188778763114) internal successors, (21275), 17775 states have internal predecessors, (21275), 6861 states have call successors, (6861), 1685 states have call predecessors, (6861), 1686 states have return successors, (6920), 6656 states have call predecessors, (6920), 6858 states have call successors, (6920) [2021-12-21 17:04:26,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25803 states to 25803 states and 35056 transitions. [2021-12-21 17:04:26,805 INFO L78 Accepts]: Start accepts. Automaton has 25803 states and 35056 transitions. Word has length 196 [2021-12-21 17:04:26,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:04:26,806 INFO L470 AbstractCegarLoop]: Abstraction has 25803 states and 35056 transitions. [2021-12-21 17:04:26,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 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) [2021-12-21 17:04:26,806 INFO L276 IsEmpty]: Start isEmpty. Operand 25803 states and 35056 transitions. [2021-12-21 17:04:26,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-12-21 17:04:26,809 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:04:26,809 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:04:26,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-21 17:04:26,809 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:04:26,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:04:26,810 INFO L85 PathProgramCache]: Analyzing trace with hash -547861392, now seen corresponding path program 1 times [2021-12-21 17:04:26,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:04:26,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116057098] [2021-12-21 17:04:26,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:04:26,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:04:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:26,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:04:26,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:26,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:26,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:26,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:04:26,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:26,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:26,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:26,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:04:26,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:26,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:26,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:26,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:04:26,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:26,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:26,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:04:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:26,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:26,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:26,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:04:26,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:26,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:26,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:04:26,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:26,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:26,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:26,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:04:26,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:27,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:27,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:04:27,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:27,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:27,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:27,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:04:27,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:27,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:27,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:27,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 17:04:27,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:27,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-21 17:04:27,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:27,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-21 17:04:27,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:27,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-21 17:04:27,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:27,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-21 17:04:27,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:27,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:27,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:27,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-21 17:04:27,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:27,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-21 17:04:27,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:27,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-21 17:04:27,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:27,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-21 17:04:27,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:27,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-21 17:04:27,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:27,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-21 17:04:27,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:27,112 INFO L134 CoverageAnalysis]: Checked inductivity of 591 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2021-12-21 17:04:27,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:04:27,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116057098] [2021-12-21 17:04:27,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116057098] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:04:27,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:04:27,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:04:27,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143515254] [2021-12-21 17:04:27,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:04:27,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:04:27,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:04:27,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:04:27,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:04:27,115 INFO L87 Difference]: Start difference. First operand 25803 states and 35056 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 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) [2021-12-21 17:04:30,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:04:30,174 INFO L93 Difference]: Finished difference Result 26805 states and 36591 transitions. [2021-12-21 17:04:30,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 17:04:30,175 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 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 201 [2021-12-21 17:04:30,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:04:30,267 INFO L225 Difference]: With dead ends: 26805 [2021-12-21 17:04:30,267 INFO L226 Difference]: Without dead ends: 26803 [2021-12-21 17:04:30,283 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 [2021-12-21 17:04:30,284 INFO L933 BasicCegarLoop]: 2238 mSDtfsCounter, 2588 mSDsluCounter, 3788 mSDsCounter, 0 mSdLazyCounter, 2445 mSolverCounterSat, 1274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2836 SdHoareTripleChecker+Valid, 6026 SdHoareTripleChecker+Invalid, 3719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1274 IncrementalHoareTripleChecker+Valid, 2445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-21 17:04:30,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2836 Valid, 6026 Invalid, 3719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1274 Valid, 2445 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-21 17:04:30,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26803 states. [2021-12-21 17:04:31,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26803 to 25807. [2021-12-21 17:04:31,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25807 states, 17256 states have (on average 1.2330783495595734) internal successors, (21278), 17778 states have internal predecessors, (21278), 6861 states have call successors, (6861), 1686 states have call predecessors, (6861), 1687 states have return successors, (6920), 6656 states have call predecessors, (6920), 6858 states have call successors, (6920) [2021-12-21 17:04:31,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25807 states to 25807 states and 35059 transitions. [2021-12-21 17:04:31,170 INFO L78 Accepts]: Start accepts. Automaton has 25807 states and 35059 transitions. Word has length 201 [2021-12-21 17:04:31,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:04:31,170 INFO L470 AbstractCegarLoop]: Abstraction has 25807 states and 35059 transitions. [2021-12-21 17:04:31,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 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) [2021-12-21 17:04:31,171 INFO L276 IsEmpty]: Start isEmpty. Operand 25807 states and 35059 transitions. [2021-12-21 17:04:31,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-12-21 17:04:31,173 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:04:31,173 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:04:31,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-21 17:04:31,174 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)] === [2021-12-21 17:04:31,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:04:31,174 INFO L85 PathProgramCache]: Analyzing trace with hash 581343708, now seen corresponding path program 1 times [2021-12-21 17:04:31,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:04:31,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445871697] [2021-12-21 17:04:31,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:04:31,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:04:31,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:04:31,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:31,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:04:31,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:31,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:04:31,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:31,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:04:31,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:31,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:04:31,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:04:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:31,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:04:31,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:31,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:04:31,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:31,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:04:31,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:31,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:04:31,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:31,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 17:04:31,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-21 17:04:31,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-21 17:04:31,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-21 17:04:31,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-21 17:04:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-21 17:04:31,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-21 17:04:31,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-21 17:04:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-21 17:04:31,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-21 17:04:31,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-21 17:04:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-21 17:04:31,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:31,446 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 597 trivial. 0 not checked. [2021-12-21 17:04:31,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:04:31,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445871697] [2021-12-21 17:04:31,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445871697] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:04:31,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:04:31,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:04:31,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345382186] [2021-12-21 17:04:31,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:04:31,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:04:31,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:04:31,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:04:31,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:04:31,449 INFO L87 Difference]: Start difference. First operand 25807 states and 35059 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 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)